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kernel_linux
提交 4b11111a 编写于 作者: M Marcin Slusarz 提交者： Linus Torvalds
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udf: fix coding style 

fix coding style errors found by checkpatch:
- assignments in if conditions
- braces {} around single statement blocks
- no spaces after commas
- printks without KERN_*
- lines longer than 80 characters
- spaces between "type *" and variable name

before: 192 errors, 561 warnings, 8987 lines checked
after: 1 errors, 38 warnings, 9468 lines checked
Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 bd45a420
隐藏空白更改
内联 并排
Showing with 1306 addition and 830 deletion
fs/udf/balloc.c
浏览文件 @ 4b11111a
......@@ -28,15 +28,16 @@
#include "udf_i.h"
#include "udf_sb.h"
#define udf_clear_bit(nr,addr) ext2_clear_bit(nr,addr)
#define udf_set_bit(nr,addr) ext2_set_bit(nr,addr)
#define udf_clear_bit(nr, addr) ext2_clear_bit(nr, addr)
#define udf_set_bit(nr, addr) ext2_set_bit(nr, addr)
#define udf_test_bit(nr, addr) ext2_test_bit(nr, addr)
#define udf_find_first_one_bit(addr, size) find_first_one_bit(addr, size)
#define udf_find_next_one_bit(addr, size, offset) find_next_one_bit(addr, size, offset)
#define udf_find_next_one_bit(addr, size, offset) \
find_next_one_bit(addr, size, offset)
#define leBPL_to_cpup(x) leNUM_to_cpup(BITS_PER_LONG, x)
#define leNUM_to_cpup(x,y) xleNUM_to_cpup(x,y)
#define xleNUM_to_cpup(x,y) (le ## x ## _to_cpup(y))
#define leNUM_to_cpup(x, y) xleNUM_to_cpup(x, y)
#define xleNUM_to_cpup(x, y) (le ## x ## _to_cpup(y))
#define uintBPL_t uint(BITS_PER_LONG)
#define uint(x) xuint(x)
#define xuint(x) __le ## x
......@@ -62,7 +63,8 @@ static inline int find_next_one_bit(void *addr, int size, int offset)
result += BITS_PER_LONG;
}
while (size & ~(BITS_PER_LONG - 1)) {
if ((tmp = leBPL_to_cpup(p++)))
tmp = leBPL_to_cpup(p++);
if (tmp)
goto found_middle;
result += BITS_PER_LONG;
size -= BITS_PER_LONG;
......@@ -91,9 +93,9 @@ static int read_block_bitmap(struct super_block *sb,
loc.partitionReferenceNum = UDF_SB(sb)->s_partition;
bh = udf_tread(sb, udf_get_lb_pblock(sb, loc, block));
if (!bh) {
if (!bh)
retval = -EIO;
}
bitmap->s_block_bitmap[bitmap_nr] = bh;
return retval;
}
......@@ -155,14 +157,17 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
mutex_lock(&sbi->s_alloc_mutex);
if (bloc.logicalBlockNum < 0 ||
(bloc.logicalBlockNum + count) > sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
(bloc.logicalBlockNum + count) >
sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
udf_debug("%d < %d || %d + %d > %d\n",
bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len);
sbi->s_partmaps[bloc.partitionReferenceNum].
s_partition_len);
goto error_return;
}
block = bloc.logicalBlockNum + offset + (sizeof(struct spaceBitmapDesc) << 3);
block = bloc.logicalBlockNum + offset +
(sizeof(struct spaceBitmapDesc) << 3);
do_more:
overflow = 0;
......@@ -184,7 +189,8 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
for (i = 0; i < count; i++) {
if (udf_set_bit(bit + i, bh->b_data)) {
udf_debug("bit %ld already set\n", bit + i);
udf_debug("byte=%2x\n", ((char *)bh->b_data)[(bit + i) >> 3]);
udf_debug("byte=%2x\n",
((char *)bh->b_data)[(bit + i) >> 3]);
} else {
if (inode)
DQUOT_FREE_BLOCK(inode, 1);
......@@ -314,14 +320,16 @@ static int udf_bitmap_new_block(struct super_block *sb,
if (bit < end_goal)
goto got_block;
ptr = memscan((char *)bh->b_data + (bit >> 3), 0xFF, sb->s_blocksize - ((bit + 7) >> 3));
ptr = memscan((char *)bh->b_data + (bit >> 3), 0xFF,
sb->s_blocksize - ((bit + 7) >> 3));
newbit = (ptr - ((char *)bh->b_data)) << 3;
if (newbit < sb->s_blocksize << 3) {
bit = newbit;
goto search_back;
}
newbit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, bit);
newbit = udf_find_next_one_bit(bh->b_data,
sb->s_blocksize << 3, bit);
if (newbit < sb->s_blocksize << 3) {
bit = newbit;
goto got_block;
......@@ -360,15 +368,20 @@ static int udf_bitmap_new_block(struct super_block *sb,
if (bit < sb->s_blocksize << 3)
goto search_back;
else
bit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, group_start << 3);
bit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3,
group_start << 3);
if (bit >= sb->s_blocksize << 3) {
mutex_unlock(&sbi->s_alloc_mutex);
return 0;
}
search_back:
for (i = 0; i < 7 && bit > (group_start << 3) && udf_test_bit(bit - 1, bh->b_data); i++, bit--)
; /* empty loop */
i = 0;
while (i < 7 && bit > (group_start << 3) &&
udf_test_bit(bit - 1, bh->b_data)) {
++i;
--bit;
}
got_block:
......@@ -424,15 +437,17 @@ static void udf_table_free_blocks(struct super_block *sb,
mutex_lock(&sbi->s_alloc_mutex);
if (bloc.logicalBlockNum < 0 ||
(bloc.logicalBlockNum + count) > sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
(bloc.logicalBlockNum + count) >
sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
udf_debug("%d < %d || %d + %d > %d\n",
bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
sbi->s_partmaps[bloc.partitionReferenceNum]->s_partition_len);
sbi->s_partmaps[bloc.partitionReferenceNum].
s_partition_len);
goto error_return;
}
/* We do this up front - There are some error conditions that could occure,
but.. oh well */
/* We do this up front - There are some error conditions that
could occure, but.. oh well */
if (inode)
DQUOT_FREE_BLOCK(inode, count);
if (sbi->s_lvid_bh) {
......@@ -452,26 +467,39 @@ static void udf_table_free_blocks(struct super_block *sb,
while (count &&
(etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) {
if (((eloc.logicalBlockNum + (elen >> sb->s_blocksize_bits)) == start)) {
if ((0x3FFFFFFF - elen) < (count << sb->s_blocksize_bits)) {
count -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
start += ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
elen = (etype << 30) | (0x40000000 - sb->s_blocksize);
if (((eloc.logicalBlockNum +
(elen >> sb->s_blocksize_bits)) == start)) {
if ((0x3FFFFFFF - elen) <
(count << sb->s_blocksize_bits)) {
uint32_t tmp = ((0x3FFFFFFF - elen) >>
sb->s_blocksize_bits);
count -= tmp;
start += tmp;
elen = (etype << 30) |
(0x40000000 - sb->s_blocksize);
} else {
elen = (etype << 30) | (elen + (count << sb->s_blocksize_bits));
elen = (etype << 30) |
(elen +
(count << sb->s_blocksize_bits));
start += count;
count = 0;
}
udf_write_aext(table, &oepos, eloc, elen, 1);
} else if (eloc.logicalBlockNum == (end + 1)) {
if ((0x3FFFFFFF - elen) < (count << sb->s_blocksize_bits)) {
count -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
end -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
eloc.logicalBlockNum -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits);
elen = (etype << 30) | (0x40000000 - sb->s_blocksize);
if ((0x3FFFFFFF - elen) <
(count << sb->s_blocksize_bits)) {
uint32_t tmp = ((0x3FFFFFFF - elen) >>
sb->s_blocksize_bits);
count -= tmp;
end -= tmp;
eloc.logicalBlockNum -= tmp;
elen = (etype << 30) |
(0x40000000 - sb->s_blocksize);
} else {
eloc.logicalBlockNum = start;
elen = (etype << 30) | (elen + (count << sb->s_blocksize_bits));
elen = (etype << 30) |
(elen +
(count << sb->s_blocksize_bits));
end -= count;
count = 0;
}
......@@ -492,9 +520,9 @@ static void udf_table_free_blocks(struct super_block *sb,
if (count) {
/*
* NOTE: we CANNOT use udf_add_aext here, as it can try to allocate
* a new block, and since we hold the super block lock already
* very bad things would happen :)
* NOTE: we CANNOT use udf_add_aext here, as it can try to
* allocate a new block, and since we hold the super block
* lock already very bad things would happen :)
*
* We copy the behavior of udf_add_aext, but instead of
* trying to allocate a new block close to the existing one,
......@@ -535,27 +563,35 @@ static void udf_table_free_blocks(struct super_block *sb,
eloc.logicalBlockNum++;
elen -= sb->s_blocksize;
if (!(epos.bh = udf_tread(sb, udf_get_lb_pblock(sb, epos.block, 0)))) {
epos.bh = udf_tread(sb,
udf_get_lb_pblock(sb, epos.block, 0));
if (!epos.bh) {
brelse(oepos.bh);
goto error_return;
}
aed = (struct allocExtDesc *)(epos.bh->b_data);
aed->previousAllocExtLocation = cpu_to_le32(oepos.block.logicalBlockNum);
aed->previousAllocExtLocation =
cpu_to_le32(oepos.block.logicalBlockNum);
if (epos.offset + adsize > sb->s_blocksize) {
loffset = epos.offset;
aed->lengthAllocDescs = cpu_to_le32(adsize);
sptr = UDF_I_DATA(table) + epos.offset - adsize;
dptr = epos.bh->b_data + sizeof(struct allocExtDesc);
dptr = epos.bh->b_data +
sizeof(struct allocExtDesc);
memcpy(dptr, sptr, adsize);
epos.offset = sizeof(struct allocExtDesc) + adsize;
epos.offset = sizeof(struct allocExtDesc) +
adsize;
} else {
loffset = epos.offset + adsize;
aed->lengthAllocDescs = cpu_to_le32(0);
if (oepos.bh) {
sptr = oepos.bh->b_data + epos.offset;
aed = (struct allocExtDesc *)oepos.bh->b_data;
aed = (struct allocExtDesc *)
oepos.bh->b_data;
aed->lengthAllocDescs =
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
cpu_to_le32(le32_to_cpu(
aed->lengthAllocDescs) +
adsize);
} else {
sptr = UDF_I_DATA(table) + epos.offset;
UDF_I_LENALLOC(table) += adsize;
......@@ -564,27 +600,31 @@ static void udf_table_free_blocks(struct super_block *sb,
epos.offset = sizeof(struct allocExtDesc);
}
if (sbi->s_udfrev >= 0x0200)
udf_new_tag(epos.bh->b_data, TAG_IDENT_AED, 3, 1,
epos.block.logicalBlockNum, sizeof(tag));
udf_new_tag(epos.bh->b_data, TAG_IDENT_AED,
3, 1, epos.block.logicalBlockNum,
sizeof(tag));
else
udf_new_tag(epos.bh->b_data, TAG_IDENT_AED, 2, 1,
epos.block.logicalBlockNum, sizeof(tag));
udf_new_tag(epos.bh->b_data, TAG_IDENT_AED,
2, 1, epos.block.logicalBlockNum,
sizeof(tag));
switch (UDF_I_ALLOCTYPE(table)) {
case ICBTAG_FLAG_AD_SHORT:
sad = (short_ad *)sptr;
sad->extLength = cpu_to_le32(
EXT_NEXT_EXTENT_ALLOCDECS |
sb->s_blocksize);
sad->extPosition = cpu_to_le32(epos.block.logicalBlockNum);
break;
case ICBTAG_FLAG_AD_LONG:
lad = (long_ad *)sptr;
lad->extLength = cpu_to_le32(
EXT_NEXT_EXTENT_ALLOCDECS |
sb->s_blocksize);
lad->extLocation = cpu_to_lelb(epos.block);
break;
case ICBTAG_FLAG_AD_SHORT:
sad = (short_ad *)sptr;
sad->extLength = cpu_to_le32(
EXT_NEXT_EXTENT_ALLOCDECS |
sb->s_blocksize);
sad->extPosition =
cpu_to_le32(epos.block.logicalBlockNum);
break;
case ICBTAG_FLAG_AD_LONG:
lad = (long_ad *)sptr;
lad->extLength = cpu_to_le32(
EXT_NEXT_EXTENT_ALLOCDECS |
sb->s_blocksize);
lad->extLocation =
cpu_to_lelb(epos.block);
break;
}
if (oepos.bh) {
udf_update_tag(oepos.bh->b_data, loffset);
......@@ -594,7 +634,8 @@ static void udf_table_free_blocks(struct super_block *sb,
}
}
if (elen) { /* It's possible that stealing the block emptied the extent */
/* It's possible that stealing the block emptied the extent */
if (elen) {
udf_write_aext(table, &epos, eloc, elen, 1);
if (!epos.bh) {
......@@ -603,7 +644,8 @@ static void udf_table_free_blocks(struct super_block *sb,
} else {
aed = (struct allocExtDesc *)epos.bh->b_data;
aed->lengthAllocDescs =
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
cpu_to_le32(le32_to_cpu(
aed->lengthAllocDescs) + adsize);
udf_update_tag(epos.bh->b_data, epos.offset);
mark_buffer_dirty(epos.bh);
}
......@@ -631,7 +673,8 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
struct extent_position epos;
int8_t etype = -1;
if (first_block < 0 || first_block >= sbi->s_partmaps[partition].s_partition_len)
if (first_block < 0 ||
first_block >= sbi->s_partmaps[partition].s_partition_len)
return 0;
if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_SHORT)
......@@ -658,16 +701,18 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
epos.offset -= adsize;
alloc_count = (elen >> sb->s_blocksize_bits);
if (inode && DQUOT_PREALLOC_BLOCK(inode, alloc_count > block_count ? block_count : alloc_count)) {
if (inode && DQUOT_PREALLOC_BLOCK(inode,
alloc_count > block_count ? block_count : alloc_count))
alloc_count = 0;
} else if (alloc_count > block_count) {
else if (alloc_count > block_count) {
alloc_count = block_count;
eloc.logicalBlockNum += alloc_count;
elen -= (alloc_count << sb->s_blocksize_bits);
udf_write_aext(table, &epos, eloc, (etype << 30) | elen, 1);
} else {
udf_delete_aext(table, epos, eloc, (etype << 30) | elen);
}
udf_write_aext(table, &epos, eloc,
(etype << 30) | elen, 1);
} else
udf_delete_aext(table, epos, eloc,
(etype << 30) | elen);
} else {
alloc_count = 0;
}
......@@ -711,10 +756,10 @@ static int udf_table_new_block(struct super_block *sb,
if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
goal = 0;
/* We search for the closest matching block to goal. If we find a exact hit,
we stop. Otherwise we keep going till we run out of extents.
We store the buffer_head, bloc, and extoffset of the current closest
match and use that when we are done.
/* We search for the closest matching block to goal. If we find
a exact hit, we stop. Otherwise we keep going till we run out
of extents. We store the buffer_head, bloc, and extoffset
of the current closest match and use that when we are done.
*/
epos.offset = sizeof(struct unallocSpaceEntry);
epos.block = UDF_I_LOCATION(table);
......@@ -723,7 +768,8 @@ static int udf_table_new_block(struct super_block *sb,
while (spread &&
(etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) {
if (goal >= eloc.logicalBlockNum) {
if (goal < eloc.logicalBlockNum + (elen >> sb->s_blocksize_bits))
if (goal < eloc.logicalBlockNum +
(elen >> sb->s_blocksize_bits))
nspread = 0;
else
nspread = goal - eloc.logicalBlockNum -
......@@ -825,52 +871,53 @@ inline int udf_prealloc_blocks(struct super_block *sb,
{
struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) {
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
return udf_bitmap_prealloc_blocks(sb, inode,
map->s_uspace.s_bitmap,
partition, first_block, block_count);
} else if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) {
partition, first_block,
block_count);
else if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
return udf_table_prealloc_blocks(sb, inode,
map->s_uspace.s_table,
partition, first_block, block_count);
} else if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP) {
partition, first_block,
block_count);
else if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
return udf_bitmap_prealloc_blocks(sb, inode,
map->s_fspace.s_bitmap,
partition, first_block, block_count);
} else if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE) {
partition, first_block,
block_count);
else if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
return udf_table_prealloc_blocks(sb, inode,
map->s_fspace.s_table,
partition, first_block, block_count);
} else {
partition, first_block,
block_count);
else
return 0;
}
}
inline int udf_new_block(struct super_block *sb,
struct inode *inode,
uint16_t partition, uint32_t goal, int *err)
{
int ret;
struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) {
ret = udf_bitmap_new_block(sb, inode,
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
return udf_bitmap_new_block(sb, inode,
map->s_uspace.s_bitmap,
partition, goal, err);
return ret;
} else if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) {
else if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
return udf_table_new_block(sb, inode,
map->s_uspace.s_table,
partition, goal, err);
} else if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP) {
else if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
return udf_bitmap_new_block(sb, inode,
map->s_fspace.s_bitmap,
partition, goal, err);
} else if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE) {
else if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
return udf_table_new_block(sb, inode,
map->s_fspace.s_table,
partition, goal, err);
} else {
else {
*err = -EIO;
return 0;
}
......
fs/udf/crc.c
浏览文件 @ 4b11111a
......@@ -79,7 +79,7 @@ static uint16_t crc_table[256] = {
* July 21, 1997 - Andrew E. Mileski
* Adapted from OSTA-UDF(tm) 1.50 standard.
*/
uint16_t udf_crc(uint8_t * data, uint32_t size, uint16_t crc)
uint16_t udf_crc(uint8_t *data, uint32_t size, uint16_t crc)
{
while (size--)
crc = crc_table[(crc >> 8 ^ *(data++)) & 0xffU] ^ (crc << 8);
......
fs/udf/directory.c
浏览文件 @ 4b11111a
......@@ -19,7 +19,7 @@
#include <linux/buffer_head.h>
#if 0
static uint8_t *udf_filead_read(struct inode *dir, uint8_t * tmpad,
static uint8_t *udf_filead_read(struct inode *dir, uint8_t *tmpad,
uint8_t ad_size, kernel_lb_addr fe_loc,
int *pos, int *offset, struct buffer_head **bh,
int *error)
......@@ -45,7 +45,8 @@ static uint8_t *udf_filead_read(struct inode *dir, uint8_t * tmpad,
block = udf_get_lb_pblock(dir->i_sb, fe_loc, ++*pos);
if (!block)
return NULL;
if (!(*bh = udf_tread(dir->i_sb, block)))
*bh = udf_tread(dir->i_sb, block);
if (!*bh)
return NULL;
} else if (*offset > dir->i_sb->s_blocksize) {
ad = tmpad;
......@@ -57,10 +58,12 @@ static uint8_t *udf_filead_read(struct inode *dir, uint8_t * tmpad,
block = udf_get_lb_pblock(dir->i_sb, fe_loc, ++*pos);
if (!block)
return NULL;
if (!((*bh) = udf_tread(dir->i_sb, block)))
(*bh) = udf_tread(dir->i_sb, block);
if (!*bh)
return NULL;
memcpy((uint8_t *)ad + remainder, (*bh)->b_data, ad_size - remainder);
memcpy((uint8_t *)ad + remainder, (*bh)->b_data,
ad_size - remainder);
*offset = ad_size - remainder;
}
......@@ -68,12 +71,12 @@ static uint8_t *udf_filead_read(struct inode *dir, uint8_t * tmpad,
}
#endif
struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos,
struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
struct udf_fileident_bh *fibh,
struct fileIdentDesc *cfi,
struct extent_position *epos,
kernel_lb_addr * eloc, uint32_t * elen,
sector_t * offset)
kernel_lb_addr *eloc, uint32_t *elen,
sector_t *offset)
{
struct fileIdentDesc *fi;
int i, num, block;
......@@ -86,7 +89,8 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos,
(UDF_I_EFE(dir) ?
sizeof(struct extendedFileEntry) :
sizeof(struct fileEntry)),
dir->i_sb->s_blocksize, &(fibh->eoffset));
dir->i_sb->s_blocksize,
&(fibh->eoffset));
if (!fi)
return NULL;
......@@ -100,6 +104,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos,
if (fibh->eoffset == dir->i_sb->s_blocksize) {
int lextoffset = epos->offset;
unsigned char blocksize_bits = dir->i_sb->s_blocksize_bits;
if (udf_next_aext(dir, epos, eloc, elen, 1) !=
(EXT_RECORDED_ALLOCATED >> 30))
......@@ -109,24 +114,27 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos,
(*offset)++;
if ((*offset << dir->i_sb->s_blocksize_bits) >= *elen)
if ((*offset << blocksize_bits) >= *elen)
*offset = 0;
else
epos->offset = lextoffset;
brelse(fibh->sbh);
if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block)))
fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
if (!fibh->sbh)
return NULL;
fibh->soffset = fibh->eoffset = 0;
if (!(*offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9)) - 1))) {
i = 16 >> (dir->i_sb->s_blocksize_bits - 9);
if (i + *offset > (*elen >> dir->i_sb->s_blocksize_bits))
i = (*elen >> dir->i_sb->s_blocksize_bits)-*offset;
if (!(*offset & ((16 >> (blocksize_bits - 9)) - 1))) {
i = 16 >> (blocksize_bits - 9);
if (i + *offset > (*elen >> blocksize_bits))
i = (*elen >> blocksize_bits)-*offset;
for (num = 0; i > 0; i--) {
block = udf_get_lb_pblock(dir->i_sb, *eloc, *offset + i);
block = udf_get_lb_pblock(dir->i_sb, *eloc,
*offset + i);
tmp = udf_tgetblk(dir->i_sb, block);
if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp))
if (tmp && !buffer_uptodate(tmp) &&
!buffer_locked(tmp))
bha[num++] = tmp;
else
brelse(tmp);
......@@ -172,20 +180,24 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos,
fibh->soffset -= dir->i_sb->s_blocksize;
fibh->eoffset -= dir->i_sb->s_blocksize;
if (!(fibh->ebh = udf_tread(dir->i_sb, block)))
fibh->ebh = udf_tread(dir->i_sb, block);
if (!fibh->ebh)
return NULL;
if (sizeof(struct fileIdentDesc) > -fibh->soffset) {
int fi_len;
memcpy((uint8_t *)cfi, (uint8_t *)fi, -fibh->soffset);
memcpy((uint8_t *)cfi - fibh->soffset, fibh->ebh->b_data,
memcpy((uint8_t *)cfi - fibh->soffset,
fibh->ebh->b_data,
sizeof(struct fileIdentDesc) + fibh->soffset);
fi_len = (sizeof(struct fileIdentDesc) + cfi->lengthFileIdent +
fi_len = (sizeof(struct fileIdentDesc) +
cfi->lengthFileIdent +
le16_to_cpu(cfi->lengthOfImpUse) + 3) & ~3;
*nf_pos += ((fi_len - (fibh->eoffset - fibh->soffset)) >> 2);
*nf_pos += (fi_len - (fibh->eoffset - fibh->soffset))
>> 2;
fibh->eoffset = fibh->soffset + fi_len;
} else {
memcpy((uint8_t *)cfi, (uint8_t *)fi,
......@@ -210,9 +222,8 @@ struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, int *offset)
ptr = buffer;
if ((*offset > 0) && (*offset < bufsize)) {
if ((*offset > 0) && (*offset < bufsize))
ptr += *offset;
}
fi = (struct fileIdentDesc *)ptr;
if (le16_to_cpu(fi->descTag.tagIdent) != TAG_IDENT_FID) {
udf_debug("0x%x != TAG_IDENT_FID\n",
......@@ -222,12 +233,11 @@ struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, int *offset)
bufsize);
return NULL;
}
if ((*offset + sizeof(struct fileIdentDesc)) > bufsize) {
if ((*offset + sizeof(struct fileIdentDesc)) > bufsize)
lengthThisIdent = sizeof(struct fileIdentDesc);
} else {
else
lengthThisIdent = sizeof(struct fileIdentDesc) +
fi->lengthFileIdent + le16_to_cpu(fi->lengthOfImpUse);
}
/* we need to figure padding, too! */
padlen = lengthThisIdent % UDF_NAME_PAD;
......@@ -258,11 +268,11 @@ static extent_ad *udf_get_fileextent(void *buffer, int bufsize, int *offset)
return NULL;
}
ptr = (uint8_t *)(fe->extendedAttr) + le32_to_cpu(fe->lengthExtendedAttr);
ptr = (uint8_t *)(fe->extendedAttr) +
le32_to_cpu(fe->lengthExtendedAttr);
if ((*offset > 0) && (*offset < le32_to_cpu(fe->lengthAllocDescs))) {
if ((*offset > 0) && (*offset < le32_to_cpu(fe->lengthAllocDescs)))
ptr += *offset;
}
ext = (extent_ad *)ptr;
......@@ -283,8 +293,11 @@ short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, int *offset,
if ((*offset < 0) || ((*offset + sizeof(short_ad)) > maxoffset))
return NULL;
else if ((sa = (short_ad *)ptr)->extLength == 0)
return NULL;
else {
sa = (short_ad *)ptr;
if (sa->extLength == 0)
return NULL;
}
if (inc)
*offset += sizeof(short_ad);
......@@ -302,8 +315,11 @@ long_ad *udf_get_filelongad(uint8_t *ptr, int maxoffset, int *offset, int inc)
if ((*offset < 0) || ((*offset + sizeof(long_ad)) > maxoffset))
return NULL;
else if ((la = (long_ad *)ptr)->extLength == 0)
return NULL;
else {
la = (long_ad *)ptr;
if (la->extLength == 0)
return NULL;
}
if (inc)
*offset += sizeof(long_ad);
......
fs/udf/file.c
浏览文件 @ 4b11111a
......@@ -59,7 +59,8 @@ static int udf_adinicb_readpage(struct file *file, struct page *page)
return 0;
}
static int udf_adinicb_writepage(struct page *page, struct writeback_control *wbc)
static int udf_adinicb_writepage(struct page *page,
struct writeback_control *wbc)
{
struct inode *inode = page->mapping->host;
char *kaddr;
......@@ -116,7 +117,8 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
else
pos = ppos;
if (inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) +
if (inode->i_sb->s_blocksize <
(udf_file_entry_alloc_offset(inode) +
pos + count)) {
udf_expand_file_adinicb(inode, pos + count, &err);
if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) {
......@@ -191,15 +193,19 @@ int udf_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
switch (cmd) {
case UDF_GETVOLIDENT:
return copy_to_user((char __user *)arg,
UDF_SB(inode->i_sb)->s_volume_ident, 32) ? -EFAULT : 0;
if (copy_to_user((char __user *)arg,
UDF_SB(inode->i_sb)->s_volume_ident, 32))
return -EFAULT;
else
return 0;
case UDF_RELOCATE_BLOCKS:
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
if (get_user(old_block, (long __user *)arg))
return -EFAULT;
if ((result = udf_relocate_blocks(inode->i_sb,
old_block, &new_block)) == 0)
result = udf_relocate_blocks(inode->i_sb,
old_block, &new_block);
if (result == 0)
result = put_user(new_block, (long __user *)arg);
return result;
case UDF_GETEASIZE:
......
fs/udf/ialloc.c
浏览文件 @ 4b11111a
......@@ -82,7 +82,8 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
UDF_I_NEXT_ALLOC_GOAL(inode) = 0;
UDF_I_STRAT4096(inode) = 0;
block = udf_new_block(dir->i_sb, NULL, UDF_I_LOCATION(dir).partitionReferenceNum,
block = udf_new_block(dir->i_sb, NULL,
UDF_I_LOCATION(dir).partitionReferenceNum,
start, err);
if (*err) {
iput(inode);
......@@ -91,11 +92,15 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
mutex_lock(&sbi->s_alloc_mutex);
if (sbi->s_lvid_bh) {
struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sbi);
struct logicalVolIntegrityDesc *lvid =
(struct logicalVolIntegrityDesc *)
sbi->s_lvid_bh->b_data;
struct logicalVolIntegrityDescImpUse *lvidiu =
udf_sb_lvidiu(sbi);
struct logicalVolHeaderDesc *lvhd;
uint64_t uniqueID;
lvhd = (struct logicalVolHeaderDesc *)(lvid->logicalVolContentsUse);
lvhd = (struct logicalVolHeaderDesc *)
(lvid->logicalVolContentsUse);
if (S_ISDIR(mode))
lvidiu->numDirs =
cpu_to_le32(le32_to_cpu(lvidiu->numDirs) + 1);
......@@ -119,7 +124,8 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
}
UDF_I_LOCATION(inode).logicalBlockNum = block;
UDF_I_LOCATION(inode).partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
UDF_I_LOCATION(inode).partitionReferenceNum =
UDF_I_LOCATION(dir).partitionReferenceNum;
inode->i_ino = udf_get_lb_pblock(sb, UDF_I_LOCATION(inode), 0);
inode->i_blocks = 0;
UDF_I_LENEATTR(inode) = 0;
......@@ -129,10 +135,14 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
UDF_I_EFE(inode) = 1;
if (UDF_VERS_USE_EXTENDED_FE > sbi->s_udfrev)
sbi->s_udfrev = UDF_VERS_USE_EXTENDED_FE;
UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry), GFP_KERNEL);
UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize -
sizeof(struct extendedFileEntry),
GFP_KERNEL);
} else {
UDF_I_EFE(inode) = 0;
UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL);
UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize -
sizeof(struct fileEntry),
GFP_KERNEL);
}
if (!UDF_I_DATA(inode)) {
iput(inode);
......
fs/udf/inode.c
浏览文件 @ 4b11111a
......@@ -19,7 +19,8 @@
* 10/04/98 dgb Added rudimentary directory functions
* 10/07/98 Fully working udf_block_map! It works!
* 11/25/98 bmap altered to better support extents
* 12/06/98 blf partition support in udf_iget, udf_block_map and udf_read_inode
* 12/06/98 blf partition support in udf_iget, udf_block_map
* and udf_read_inode
* 12/12/98 rewrote udf_block_map to handle next extents and descs across
* block boundaries (which is not actually allowed)
* 12/20/98 added support for strategy 4096
......@@ -237,7 +238,8 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
if (!(*block))
return NULL;
newblock = udf_get_pblock(inode->i_sb, *block,
UDF_I_LOCATION(inode).partitionReferenceNum, 0);
UDF_I_LOCATION(inode).partitionReferenceNum,
0);
if (!newblock)
return NULL;
dbh = udf_tgetblk(inode->i_sb, newblock);
......@@ -249,13 +251,15 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
unlock_buffer(dbh);
mark_buffer_dirty_inode(dbh, inode);
sfibh.soffset = sfibh.eoffset = (f_pos & ((inode->i_sb->s_blocksize - 1) >> 2)) << 2;
sfibh.soffset = sfibh.eoffset =
(f_pos & ((inode->i_sb->s_blocksize - 1) >> 2)) << 2;
sfibh.sbh = sfibh.ebh = NULL;
dfibh.soffset = dfibh.eoffset = 0;
dfibh.sbh = dfibh.ebh = dbh;
while ((f_pos < size)) {
UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
sfi = udf_fileident_read(inode, &f_pos, &sfibh, &cfi, NULL, NULL, NULL, NULL);
sfi = udf_fileident_read(inode, &f_pos, &sfibh, &cfi, NULL,
NULL, NULL, NULL);
if (!sfi) {
brelse(dbh);
return NULL;
......@@ -266,7 +270,8 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
dfibh.eoffset += (sfibh.eoffset - sfibh.soffset);
dfi = (struct fileIdentDesc *)(dbh->b_data + dfibh.soffset);
if (udf_write_fi(inode, sfi, dfi, &dfibh, sfi->impUse,
sfi->fileIdent + le16_to_cpu(sfi->lengthOfImpUse))) {
sfi->fileIdent +
le16_to_cpu(sfi->lengthOfImpUse))) {
UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
brelse(dbh);
return NULL;
......@@ -274,10 +279,12 @@ struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
}
mark_buffer_dirty_inode(dbh, inode);
memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), 0, UDF_I_LENALLOC(inode));
memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), 0,
UDF_I_LENALLOC(inode));
UDF_I_LENALLOC(inode) = 0;
eloc.logicalBlockNum = *block;
eloc.partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
eloc.partitionReferenceNum =
UDF_I_LOCATION(inode).partitionReferenceNum;
elen = inode->i_size;
UDF_I_LENEXTENTS(inode) = elen;
epos.bh = NULL;
......@@ -366,7 +373,7 @@ static struct buffer_head *udf_getblk(struct inode *inode, long block,
/* Extend the file by 'blocks' blocks, return the number of extents added */
int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
kernel_long_ad * last_ext, sector_t blocks)
kernel_long_ad *last_ext, sector_t blocks)
{
sector_t add;
int count = 0, fake = !(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
......@@ -391,7 +398,8 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
}
/* Last extent are just preallocated blocks? */
if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == EXT_NOT_RECORDED_ALLOCATED) {
if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) ==
EXT_NOT_RECORDED_ALLOCATED) {
/* Save the extent so that we can reattach it to the end */
prealloc_loc = last_ext->extLocation;
prealloc_len = last_ext->extLength;
......@@ -399,13 +407,15 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
last_ext->extLocation.logicalBlockNum = 0;
last_ext->extLocation.partitionReferenceNum = 0;
last_ext->extLocation.partitionReferenceNum = 0;
}
/* Can we merge with the previous extent? */
if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == EXT_NOT_RECORDED_NOT_ALLOCATED) {
add = ((1 << 30) - sb->s_blocksize - (last_ext->extLength &
UDF_EXTENT_LENGTH_MASK)) >> sb->s_blocksize_bits;
if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) ==
EXT_NOT_RECORDED_NOT_ALLOCATED) {
add = ((1 << 30) - sb->s_blocksize -
(last_ext->extLength & UDF_EXTENT_LENGTH_MASK)) >>
sb->s_blocksize_bits;
if (add > blocks)
add = blocks;
blocks -= add;
......@@ -416,9 +426,9 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
udf_add_aext(inode, last_pos, last_ext->extLocation,
last_ext->extLength, 1);
count++;
} else {
udf_write_aext(inode, last_pos, last_ext->extLocation, last_ext->extLength, 1);
}
} else
udf_write_aext(inode, last_pos, last_ext->extLocation,
last_ext->extLength, 1);
/* Managed to do everything necessary? */
if (!blocks)
......@@ -426,9 +436,10 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
/* All further extents will be NOT_RECORDED_NOT_ALLOCATED */
last_ext->extLocation.logicalBlockNum = 0;
last_ext->extLocation.partitionReferenceNum = 0;
last_ext->extLocation.partitionReferenceNum = 0;
add = (1 << (30-sb->s_blocksize_bits)) - 1;
last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | (add << sb->s_blocksize_bits);
last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
(add << sb->s_blocksize_bits);
/* Create enough extents to cover the whole hole */
while (blocks > add) {
......@@ -450,7 +461,8 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos,
out:
/* Do we have some preallocated blocks saved? */
if (prealloc_len) {
if (udf_add_aext(inode, last_pos, prealloc_loc, prealloc_len, 1) == -1)
if (udf_add_aext(inode, last_pos, prealloc_loc,
prealloc_len, 1) == -1)
return -1;
last_ext->extLocation = prealloc_loc;
last_ext->extLength = prealloc_len;
......@@ -515,7 +527,8 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
prev_epos.offset = cur_epos.offset;
cur_epos.offset = next_epos.offset;
if ((etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 1)) == -1)
etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 1);
if (etype == -1)
break;
c = !c;
......@@ -569,9 +582,11 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
startnum = 1;
} else {
/* Create a fake extent when there's not one */
memset(&laarr[0].extLocation, 0x00, sizeof(kernel_lb_addr));
memset(&laarr[0].extLocation, 0x00,
sizeof(kernel_lb_addr));
laarr[0].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED;
/* Will udf_extend_file() create real extent from a fake one? */
/* Will udf_extend_file() create real extent from
a fake one? */
startnum = (offset > 0);
}
/* Create extents for the hole between EOF and offset */
......@@ -589,14 +604,16 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
offset = 0;
count += ret;
/* We are not covered by a preallocated extent? */
if ((laarr[0].extLength & UDF_EXTENT_FLAG_MASK) != EXT_NOT_RECORDED_ALLOCATED) {
if ((laarr[0].extLength & UDF_EXTENT_FLAG_MASK) !=
EXT_NOT_RECORDED_ALLOCATED) {
/* Is there any real extent? - otherwise we overwrite
* the fake one... */
if (count)
c = !c;
laarr[c].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
inode->i_sb->s_blocksize;
memset(&laarr[c].extLocation, 0x00, sizeof(kernel_lb_addr));
memset(&laarr[c].extLocation, 0x00,
sizeof(kernel_lb_addr));
count++;
endnum++;
}
......@@ -605,7 +622,8 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
} else {
endnum = startnum = ((count > 2) ? 2 : count);
/* if the current extent is in position 0, swap it with the previous */
/* if the current extent is in position 0,
swap it with the previous */
if (!c && count != 1) {
laarr[2] = laarr[0];
laarr[0] = laarr[1];
......@@ -613,34 +631,36 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
c = 1;
}
/* if the current block is located in an extent, read the next extent */
if ((etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 0)) != -1) {
/* if the current block is located in an extent,
read the next extent */
etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 0);
if (etype != -1) {
laarr[c + 1].extLength = (etype << 30) | elen;
laarr[c + 1].extLocation = eloc;
count++;
startnum++;
endnum++;
} else {
} else
lastblock = 1;
}
}
/* if the current extent is not recorded but allocated, get the
* block in the extent corresponding to the requested block */
if ((laarr[c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
if ((laarr[c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30))
newblocknum = laarr[c].extLocation.logicalBlockNum + offset;
} else { /* otherwise, allocate a new block */
else { /* otherwise, allocate a new block */
if (UDF_I_NEXT_ALLOC_BLOCK(inode) == block)
goal = UDF_I_NEXT_ALLOC_GOAL(inode);
if (!goal) {
if (!(goal = pgoal))
goal = UDF_I_LOCATION(inode).logicalBlockNum + 1;
if (!(goal = pgoal)) /* XXX: what was intended here? */
goal = UDF_I_LOCATION(inode).logicalBlockNum+1;
}
if (!(newblocknum = udf_new_block(inode->i_sb, inode,
UDF_I_LOCATION(inode).partitionReferenceNum,
goal, err))) {
newblocknum = udf_new_block(inode->i_sb, inode,
UDF_I_LOCATION(inode).partitionReferenceNum,
goal, err);
if (!newblocknum) {
brelse(prev_epos.bh);
*err = -ENOSPC;
return NULL;
......@@ -648,9 +668,10 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
UDF_I_LENEXTENTS(inode) += inode->i_sb->s_blocksize;
}
/* if the extent the requsted block is located in contains multiple blocks,
* split the extent into at most three extents. blocks prior to requested
* block, requested block, and blocks after requested block */
/* if the extent the requsted block is located in contains multiple
* blocks, split the extent into at most three extents. blocks prior
* to requested block, requested block, and blocks after requested
* block */
udf_split_extents(inode, &c, offset, newblocknum, laarr, &endnum);
#ifdef UDF_PREALLOCATE
......@@ -668,10 +689,10 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
brelse(prev_epos.bh);
if (!(newblock = udf_get_pblock(inode->i_sb, newblocknum,
UDF_I_LOCATION(inode).partitionReferenceNum, 0))) {
newblock = udf_get_pblock(inode->i_sb, newblocknum,
UDF_I_LOCATION(inode).partitionReferenceNum, 0);
if (!newblock)
return NULL;
}
*phys = newblock;
*err = 0;
*new = 1;
......@@ -692,16 +713,20 @@ static void udf_split_extents(struct inode *inode, int *c, int offset,
kernel_long_ad laarr[EXTENT_MERGE_SIZE],
int *endnum)
{
unsigned long blocksize = inode->i_sb->s_blocksize;
unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
if ((laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30) ||
(laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
(laarr[*c].extLength >> 30) ==
(EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
int curr = *c;
int blen = ((laarr[curr].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
blocksize - 1) >> blocksize_bits;
int8_t etype = (laarr[curr].extLength >> 30);
if (blen == 1) {
if (blen == 1)
;
} else if (!offset || blen == offset + 1) {
else if (!offset || blen == offset + 1) {
laarr[curr + 2] = laarr[curr + 1];
laarr[curr + 1] = laarr[curr];
} else {
......@@ -711,15 +736,18 @@ static void udf_split_extents(struct inode *inode, int *c, int offset,
if (offset) {
if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
udf_free_blocks(inode->i_sb, inode, laarr[curr].extLocation, 0, offset);
laarr[curr].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
(offset << inode->i_sb->s_blocksize_bits);
udf_free_blocks(inode->i_sb, inode,
laarr[curr].extLocation,
0, offset);
laarr[curr].extLength =
EXT_NOT_RECORDED_NOT_ALLOCATED |
(offset << blocksize_bits);
laarr[curr].extLocation.logicalBlockNum = 0;
laarr[curr].extLocation.partitionReferenceNum = 0;
} else {
laarr[curr].extLocation.
partitionReferenceNum = 0;
} else
laarr[curr].extLength = (etype << 30) |
(offset << inode->i_sb->s_blocksize_bits);
}
(offset << blocksize_bits);
curr++;
(*c)++;
(*endnum)++;
......@@ -730,14 +758,15 @@ static void udf_split_extents(struct inode *inode, int *c, int offset,
laarr[curr].extLocation.partitionReferenceNum =
UDF_I_LOCATION(inode).partitionReferenceNum;
laarr[curr].extLength = EXT_RECORDED_ALLOCATED |
inode->i_sb->s_blocksize;
blocksize;
curr++;
if (blen != offset + 1) {
if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30))
laarr[curr].extLocation.logicalBlockNum += (offset + 1);
laarr[curr].extLocation.logicalBlockNum +=
offset + 1;
laarr[curr].extLength = (etype << 30) |
((blen - (offset + 1)) << inode->i_sb->s_blocksize_bits);
((blen - (offset + 1)) << blocksize_bits);
curr++;
(*endnum)++;
}
......@@ -756,69 +785,86 @@ static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
else
start = c;
} else {
if ((laarr[c + 1].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
if ((laarr[c + 1].extLength >> 30) ==
(EXT_NOT_RECORDED_ALLOCATED >> 30)) {
start = c + 1;
length = currlength = (((laarr[c + 1].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
} else {
length = currlength =
(((laarr[c + 1].extLength &
UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >>
inode->i_sb->s_blocksize_bits);
} else
start = c;
}
}
for (i = start + 1; i <= *endnum; i++) {
if (i == *endnum) {
if (lastblock)
length += UDF_DEFAULT_PREALLOC_BLOCKS;
} else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
length += (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
} else {
} else if ((laarr[i].extLength >> 30) ==
(EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) {
length += (((laarr[i].extLength &
UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >>
inode->i_sb->s_blocksize_bits);
} else
break;
}
}
if (length) {
int next = laarr[start].extLocation.logicalBlockNum +
(((laarr[start].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
inode->i_sb->s_blocksize - 1) >>
inode->i_sb->s_blocksize_bits);
int numalloc = udf_prealloc_blocks(inode->i_sb, inode,
laarr[start].extLocation.partitionReferenceNum,
next, (UDF_DEFAULT_PREALLOC_BLOCKS > length ? length :
UDF_DEFAULT_PREALLOC_BLOCKS) - currlength);
laarr[start].extLocation.partitionReferenceNum,
next, (UDF_DEFAULT_PREALLOC_BLOCKS > length ?
length : UDF_DEFAULT_PREALLOC_BLOCKS) -
currlength);
if (numalloc) {
if (start == (c + 1)) {
if (start == (c + 1))
laarr[start].extLength +=
(numalloc << inode->i_sb->s_blocksize_bits);
} else {
(numalloc <<
inode->i_sb->s_blocksize_bits);
else {
memmove(&laarr[c + 2], &laarr[c + 1],
sizeof(long_ad) * (*endnum - (c + 1)));
(*endnum)++;
laarr[c + 1].extLocation.logicalBlockNum = next;
laarr[c + 1].extLocation.partitionReferenceNum =
laarr[c].extLocation.partitionReferenceNum;
laarr[c + 1].extLength = EXT_NOT_RECORDED_ALLOCATED |
(numalloc << inode->i_sb->s_blocksize_bits);
laarr[c].extLocation.
partitionReferenceNum;
laarr[c + 1].extLength =
EXT_NOT_RECORDED_ALLOCATED |
(numalloc <<
inode->i_sb->s_blocksize_bits);
start = c + 1;
}
for (i = start + 1; numalloc && i < *endnum; i++) {
int elen = ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits;
int elen = ((laarr[i].extLength &
UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >>
inode->i_sb->s_blocksize_bits;
if (elen > numalloc) {
laarr[i].extLength -=
(numalloc << inode->i_sb->s_blocksize_bits);
(numalloc <<
inode->i_sb->s_blocksize_bits);
numalloc = 0;
} else {
numalloc -= elen;
if (*endnum > (i + 1))
memmove(&laarr[i], &laarr[i + 1],
sizeof(long_ad) * (*endnum - (i + 1)));
memmove(&laarr[i],
&laarr[i + 1],
sizeof(long_ad) *
(*endnum - (i + 1)));
i--;
(*endnum)--;
}
}
UDF_I_LENEXTENTS(inode) += numalloc << inode->i_sb->s_blocksize_bits;
UDF_I_LENEXTENTS(inode) +=
numalloc << inode->i_sb->s_blocksize_bits;
}
}
}
......@@ -828,70 +874,97 @@ static void udf_merge_extents(struct inode *inode,
int *endnum)
{
int i;
unsigned long blocksize = inode->i_sb->s_blocksize;
unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
for (i = 0; i < (*endnum - 1); i++) {
if ((laarr[i].extLength >> 30) == (laarr[i + 1].extLength >> 30)) {
if (((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) ||
((laarr[i + 1].extLocation.logicalBlockNum - laarr[i].extLocation.logicalBlockNum) ==
(((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits))) {
if (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
(laarr[i + 1].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) {
laarr[i + 1].extLength = (laarr[i + 1].extLength -
(laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize - 1);
laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_FLAG_MASK) +
(UDF_EXTENT_LENGTH_MASK + 1) - inode->i_sb->s_blocksize;
laarr[i + 1].extLocation.logicalBlockNum =
laarr[i].extLocation.logicalBlockNum +
((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) >>
inode->i_sb->s_blocksize_bits);
} else {
laarr[i].extLength = laarr[i + 1].extLength +
(((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize - 1));
if (*endnum > (i + 2))
memmove(&laarr[i + 1], &laarr[i + 2],
sizeof(long_ad) * (*endnum - (i + 2)));
i--;
(*endnum)--;
}
kernel_long_ad *li /*l[i]*/ = &laarr[i];
kernel_long_ad *lip1 /*l[i plus 1]*/ = &laarr[i + 1];
if (((li->extLength >> 30) == (lip1->extLength >> 30)) &&
(((li->extLength >> 30) ==
(EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) ||
((lip1->extLocation.logicalBlockNum -
li->extLocation.logicalBlockNum) ==
(((li->extLength & UDF_EXTENT_LENGTH_MASK) +
blocksize - 1) >> blocksize_bits)))) {
if (((li->extLength & UDF_EXTENT_LENGTH_MASK) +
(lip1->extLength & UDF_EXTENT_LENGTH_MASK) +
blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) {
lip1->extLength = (lip1->extLength -
(li->extLength &
UDF_EXTENT_LENGTH_MASK) +
UDF_EXTENT_LENGTH_MASK) &
~(blocksize - 1);
li->extLength = (li->extLength &
UDF_EXTENT_FLAG_MASK) +
(UDF_EXTENT_LENGTH_MASK + 1) -
blocksize;
lip1->extLocation.logicalBlockNum =
li->extLocation.logicalBlockNum +
((li->extLength &
UDF_EXTENT_LENGTH_MASK) >>
blocksize_bits);
} else {
li->extLength = lip1->extLength +
(((li->extLength &
UDF_EXTENT_LENGTH_MASK) +
blocksize - 1) & ~(blocksize - 1));
if (*endnum > (i + 2))
memmove(&laarr[i + 1], &laarr[i + 2],
sizeof(long_ad) *
(*endnum - (i + 2)));
i--;
(*endnum)--;
}
} else if (((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) &&
((laarr[i + 1].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))) {
udf_free_blocks(inode->i_sb, inode, laarr[i].extLocation, 0,
((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
laarr[i].extLocation.logicalBlockNum = 0;
laarr[i].extLocation.partitionReferenceNum = 0;
if (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
(laarr[i + 1].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) {
laarr[i + 1].extLength = (laarr[i + 1].extLength -
(laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize - 1);
laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_FLAG_MASK) +
(UDF_EXTENT_LENGTH_MASK + 1) - inode->i_sb->s_blocksize;
} else if (((li->extLength >> 30) ==
(EXT_NOT_RECORDED_ALLOCATED >> 30)) &&
((lip1->extLength >> 30) ==
(EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))) {
udf_free_blocks(inode->i_sb, inode, li->extLocation, 0,
((li->extLength &
UDF_EXTENT_LENGTH_MASK) +
blocksize - 1) >> blocksize_bits);
li->extLocation.logicalBlockNum = 0;
li->extLocation.partitionReferenceNum = 0;
if (((li->extLength & UDF_EXTENT_LENGTH_MASK) +
(lip1->extLength & UDF_EXTENT_LENGTH_MASK) +
blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) {
lip1->extLength = (lip1->extLength -
(li->extLength &
UDF_EXTENT_LENGTH_MASK) +
UDF_EXTENT_LENGTH_MASK) &
~(blocksize - 1);
li->extLength = (li->extLength &
UDF_EXTENT_FLAG_MASK) +
(UDF_EXTENT_LENGTH_MASK + 1) -
blocksize;
} else {
laarr[i].extLength = laarr[i + 1].extLength +
(((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize - 1));
li->extLength = lip1->extLength +
(((li->extLength &
UDF_EXTENT_LENGTH_MASK) +
blocksize - 1) & ~(blocksize - 1));
if (*endnum > (i + 2))
memmove(&laarr[i + 1], &laarr[i + 2],
sizeof(long_ad) * (*endnum - (i + 2)));
sizeof(long_ad) *
(*endnum - (i + 2)));
i--;
(*endnum)--;
}
} else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) {
udf_free_blocks(inode->i_sb, inode, laarr[i].extLocation, 0,
((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) +
inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits);
laarr[i].extLocation.logicalBlockNum = 0;
laarr[i].extLocation.partitionReferenceNum = 0;
laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) |
EXT_NOT_RECORDED_NOT_ALLOCATED;
} else if ((li->extLength >> 30) ==
(EXT_NOT_RECORDED_ALLOCATED >> 30)) {
udf_free_blocks(inode->i_sb, inode,
li->extLocation, 0,
((li->extLength &
UDF_EXTENT_LENGTH_MASK) +
blocksize - 1) >> blocksize_bits);
li->extLocation.logicalBlockNum = 0;
li->extLocation.partitionReferenceNum = 0;
li->extLength = (li->extLength &
UDF_EXTENT_LENGTH_MASK) |
EXT_NOT_RECORDED_NOT_ALLOCATED;
}
}
}
......@@ -962,24 +1035,26 @@ void udf_truncate(struct inode *inode)
lock_kernel();
if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) {
if (inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) +
inode->i_size)) {
if (inode->i_sb->s_blocksize <
(udf_file_entry_alloc_offset(inode) +
inode->i_size)) {
udf_expand_file_adinicb(inode, inode->i_size, &err);
if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) {
inode->i_size = UDF_I_LENALLOC(inode);
unlock_kernel();
return;
} else {
} else
udf_truncate_extents(inode);
}
} else {
offset = inode->i_size & (inode->i_sb->s_blocksize - 1);
memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode) + offset, 0x00,
inode->i_sb->s_blocksize - offset - udf_file_entry_alloc_offset(inode));
memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode) +
offset, 0x00, inode->i_sb->s_blocksize -
offset - udf_file_entry_alloc_offset(inode));
UDF_I_LENALLOC(inode) = inode->i_size;
}
} else {
block_truncate_page(inode->i_mapping, inode->i_size, udf_get_block);
block_truncate_page(inode->i_mapping, inode->i_size,
udf_get_block);
udf_truncate_extents(inode);
}
......@@ -1019,8 +1094,8 @@ static void __udf_read_inode(struct inode *inode)
if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE &&
ident != TAG_IDENT_USE) {
printk(KERN_ERR "udf: udf_read_inode(ino %ld) failed ident=%d\n",
inode->i_ino, ident);
printk(KERN_ERR "udf: udf_read_inode(ino %ld) "
"failed ident=%d\n", inode->i_ino, ident);
brelse(bh);
make_bad_inode(inode);
return;
......@@ -1032,7 +1107,8 @@ static void __udf_read_inode(struct inode *inode)
struct buffer_head *ibh = NULL, *nbh = NULL;
struct indirectEntry *ie;
ibh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 1, &ident);
ibh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 1,
&ident);
if (ident == TAG_IDENT_IE) {
if (ibh) {
kernel_lb_addr loc;
......@@ -1041,10 +1117,12 @@ static void __udf_read_inode(struct inode *inode)
loc = lelb_to_cpu(ie->indirectICB.extLocation);
if (ie->indirectICB.extLength &&
(nbh = udf_read_ptagged(inode->i_sb, loc, 0, &ident))) {
(nbh = udf_read_ptagged(inode->i_sb, loc, 0,
&ident))) {
if (ident == TAG_IDENT_FE ||
ident == TAG_IDENT_EFE) {
memcpy(&UDF_I_LOCATION(inode), &loc,
memcpy(&UDF_I_LOCATION(inode),
&loc,
sizeof(kernel_lb_addr));
brelse(bh);
brelse(ibh);
......@@ -1091,7 +1169,8 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
else /* if (le16_to_cpu(fe->icbTag.strategyType) == 4096) */
UDF_I_STRAT4096(inode) = 1;
UDF_I_ALLOCTYPE(inode) = le16_to_cpu(fe->icbTag.flags) & ICBTAG_FLAG_AD_MASK;
UDF_I_ALLOCTYPE(inode) = le16_to_cpu(fe->icbTag.flags) &
ICBTAG_FLAG_AD_MASK;
UDF_I_UNIQUE(inode) = 0;
UDF_I_LENEATTR(inode) = 0;
UDF_I_LENEXTENTS(inode) = 0;
......@@ -1101,16 +1180,20 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_EFE) {
UDF_I_EFE(inode) = 1;
UDF_I_USE(inode) = 0;
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry))) {
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
sizeof(struct extendedFileEntry))) {
make_bad_inode(inode);
return;
}
memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct extendedFileEntry),
inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
memcpy(UDF_I_DATA(inode),
bh->b_data + sizeof(struct extendedFileEntry),
inode->i_sb->s_blocksize -
sizeof(struct extendedFileEntry));
} else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_FE) {
UDF_I_EFE(inode) = 0;
UDF_I_USE(inode) = 0;
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct fileEntry))) {
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
sizeof(struct fileEntry))) {
make_bad_inode(inode);
return;
}
......@@ -1119,14 +1202,18 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
} else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE) {
UDF_I_EFE(inode) = 0;
UDF_I_USE(inode) = 1;
UDF_I_LENALLOC(inode) =
le32_to_cpu(((struct unallocSpaceEntry *)bh->b_data)->lengthAllocDescs);
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry))) {
UDF_I_LENALLOC(inode) = le32_to_cpu(
((struct unallocSpaceEntry *)bh->b_data)->
lengthAllocDescs);
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
sizeof(struct unallocSpaceEntry))) {
make_bad_inode(inode);
return;
}
memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct unallocSpaceEntry),
inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry));
memcpy(UDF_I_DATA(inode),
bh->b_data + sizeof(struct unallocSpaceEntry),
inode->i_sb->s_blocksize -
sizeof(struct unallocSpaceEntry));
return;
}
......@@ -1223,7 +1310,8 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
UDF_I_UNIQUE(inode) = le64_to_cpu(efe->uniqueID);
UDF_I_LENEATTR(inode) = le32_to_cpu(efe->lengthExtendedAttr);
UDF_I_LENALLOC(inode) = le32_to_cpu(efe->lengthAllocDescs);
offset = sizeof(struct extendedFileEntry) + UDF_I_LENEATTR(inode);
offset = sizeof(struct extendedFileEntry) +
UDF_I_LENEATTR(inode);
}
switch (fe->icbTag.fileType) {
......@@ -1262,21 +1350,22 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
inode->i_mode = S_IFLNK | S_IRWXUGO;
break;
default:
printk(KERN_ERR "udf: udf_fill_inode(ino %ld) failed unknown file type=%d\n",
inode->i_ino, fe->icbTag.fileType);
printk(KERN_ERR "udf: udf_fill_inode(ino %ld) failed unknown "
"file type=%d\n", inode->i_ino,
fe->icbTag.fileType);
make_bad_inode(inode);
return;
}
if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
struct deviceSpec *dsea = (struct deviceSpec *)udf_get_extendedattr(inode, 12, 1);
struct deviceSpec *dsea =
(struct deviceSpec *)udf_get_extendedattr(inode, 12, 1);
if (dsea) {
init_special_inode(inode, inode->i_mode,
MKDEV(le32_to_cpu(dsea->majorDeviceIdent),
le32_to_cpu(dsea->minorDeviceIdent)));
MKDEV(le32_to_cpu(dsea->majorDeviceIdent),
le32_to_cpu(dsea->minorDeviceIdent)));
/* Developer ID ??? */
} else {
} else
make_bad_inode(inode);
}
}
}
......@@ -1285,8 +1374,8 @@ static int udf_alloc_i_data(struct inode *inode, size_t size)
UDF_I_DATA(inode) = kmalloc(size, GFP_KERNEL);
if (!UDF_I_DATA(inode)) {
printk(KERN_ERR "udf:udf_alloc_i_data (ino %ld) no free memory\n",
inode->i_ino);
printk(KERN_ERR "udf:udf_alloc_i_data (ino %ld) "
"no free memory\n", inode->i_ino);
return -ENOMEM;
}
......@@ -1302,12 +1391,12 @@ static mode_t udf_convert_permissions(struct fileEntry *fe)
permissions = le32_to_cpu(fe->permissions);
flags = le16_to_cpu(fe->icbTag.flags);
mode = (( permissions ) & S_IRWXO) |
(( permissions >> 2 ) & S_IRWXG) |
(( permissions >> 4 ) & S_IRWXU) |
(( flags & ICBTAG_FLAG_SETUID) ? S_ISUID : 0) |
(( flags & ICBTAG_FLAG_SETGID) ? S_ISGID : 0) |
(( flags & ICBTAG_FLAG_STICKY) ? S_ISVTX : 0);
mode = ((permissions) & S_IRWXO) |
((permissions >> 2) & S_IRWXG) |
((permissions >> 4) & S_IRWXU) |
((flags & ICBTAG_FLAG_SETUID) ? S_ISUID : 0) |
((flags & ICBTAG_FLAG_SETGID) ? S_ISGID : 0) |
((flags & ICBTAG_FLAG_STICKY) ? S_ISVTX : 0);
return mode;
}
......@@ -1355,8 +1444,11 @@ static int udf_update_inode(struct inode *inode, int do_sync)
kernel_timestamp cpu_time;
int err = 0;
struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
bh = udf_tread(inode->i_sb, udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0));
bh = udf_tread(inode->i_sb,
udf_get_lb_pblock(inode->i_sb,
UDF_I_LOCATION(inode), 0));
if (!bh) {
udf_debug("bread failure\n");
return -EIO;
......@@ -1372,18 +1464,24 @@ static int udf_update_inode(struct inode *inode, int do_sync)
(struct unallocSpaceEntry *)bh->b_data;
use->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode));
memcpy(bh->b_data + sizeof(struct unallocSpaceEntry), UDF_I_DATA(inode),
inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry));
crclen = sizeof(struct unallocSpaceEntry) + UDF_I_LENALLOC(inode) - sizeof(tag);
use->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
memcpy(bh->b_data + sizeof(struct unallocSpaceEntry),
UDF_I_DATA(inode), inode->i_sb->s_blocksize -
sizeof(struct unallocSpaceEntry));
crclen = sizeof(struct unallocSpaceEntry) +
UDF_I_LENALLOC(inode) - sizeof(tag);
use->descTag.tagLocation = cpu_to_le32(
UDF_I_LOCATION(inode).
logicalBlockNum);
use->descTag.descCRCLength = cpu_to_le16(crclen);
use->descTag.descCRC = cpu_to_le16(udf_crc((char *)use + sizeof(tag), crclen, 0));
use->descTag.descCRC = cpu_to_le16(udf_crc((char *)use +
sizeof(tag), crclen,
0));
use->descTag.tagChecksum = 0;
for (i = 0; i < 16; i++) {
for (i = 0; i < 16; i++)
if (i != 4)
use->descTag.tagChecksum += ((uint8_t *)&(use->descTag))[i];
}
use->descTag.tagChecksum +=
((uint8_t *)&(use->descTag))[i];
mark_buffer_dirty(bh);
brelse(bh);
......@@ -1400,14 +1498,14 @@ static int udf_update_inode(struct inode *inode, int do_sync)
else
fe->gid = cpu_to_le32(inode->i_gid);
udfperms = ((inode->i_mode & S_IRWXO) ) |
((inode->i_mode & S_IRWXG) << 2) |
((inode->i_mode & S_IRWXU) << 4);
udfperms = ((inode->i_mode & S_IRWXO)) |
((inode->i_mode & S_IRWXG) << 2) |
((inode->i_mode & S_IRWXU) << 4);
udfperms |= (le32_to_cpu(fe->permissions) &
(FE_PERM_O_DELETE | FE_PERM_O_CHATTR |
FE_PERM_G_DELETE | FE_PERM_G_CHATTR |
FE_PERM_U_DELETE | FE_PERM_U_CHATTR));
udfperms |= (le32_to_cpu(fe->permissions) &
(FE_PERM_O_DELETE | FE_PERM_O_CHATTR |
FE_PERM_G_DELETE | FE_PERM_G_CHATTR |
FE_PERM_U_DELETE | FE_PERM_U_CHATTR));
fe->permissions = cpu_to_le32(udfperms);
if (S_ISDIR(inode->i_mode))
......@@ -1428,8 +1526,9 @@ static int udf_update_inode(struct inode *inode, int do_sync)
sizeof(regid), 12, 0x3);
dsea->attrType = cpu_to_le32(12);
dsea->attrSubtype = 1;
dsea->attrLength = cpu_to_le32(sizeof(struct deviceSpec) +
sizeof(regid));
dsea->attrLength = cpu_to_le32(
sizeof(struct deviceSpec) +
sizeof(regid));
dsea->impUseLength = cpu_to_le32(sizeof(regid));
}
eid = (regid *)dsea->impUse;
......@@ -1445,8 +1544,8 @@ static int udf_update_inode(struct inode *inode, int do_sync)
memcpy(bh->b_data + sizeof(struct fileEntry), UDF_I_DATA(inode),
inode->i_sb->s_blocksize - sizeof(struct fileEntry));
fe->logicalBlocksRecorded = cpu_to_le64(
(inode->i_blocks + (1 << (inode->i_sb->s_blocksize_bits - 9)) - 1) >>
(inode->i_sb->s_blocksize_bits - 9));
(inode->i_blocks + (1 << (blocksize_bits - 9)) - 1) >>
(blocksize_bits - 9));
if (udf_time_to_stamp(&cpu_time, inode->i_atime))
fe->accessTime = cpu_to_lets(cpu_time);
......@@ -1464,28 +1563,29 @@ static int udf_update_inode(struct inode *inode, int do_sync)
fe->descTag.tagIdent = cpu_to_le16(TAG_IDENT_FE);
crclen = sizeof(struct fileEntry);
} else {
memcpy(bh->b_data + sizeof(struct extendedFileEntry), UDF_I_DATA(inode),
inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
memcpy(bh->b_data + sizeof(struct extendedFileEntry),
UDF_I_DATA(inode),
inode->i_sb->s_blocksize -
sizeof(struct extendedFileEntry));
efe->objectSize = cpu_to_le64(inode->i_size);
efe->logicalBlocksRecorded = cpu_to_le64(
(inode->i_blocks + (1 << (inode->i_sb->s_blocksize_bits - 9)) - 1) >>
(inode->i_sb->s_blocksize_bits - 9));
(inode->i_blocks + (1 << (blocksize_bits - 9)) - 1) >>
(blocksize_bits - 9));
if (UDF_I_CRTIME(inode).tv_sec > inode->i_atime.tv_sec ||
(UDF_I_CRTIME(inode).tv_sec == inode->i_atime.tv_sec &&
UDF_I_CRTIME(inode).tv_nsec > inode->i_atime.tv_nsec)) {
UDF_I_CRTIME(inode).tv_nsec > inode->i_atime.tv_nsec))
UDF_I_CRTIME(inode) = inode->i_atime;
}
if (UDF_I_CRTIME(inode).tv_sec > inode->i_mtime.tv_sec ||
(UDF_I_CRTIME(inode).tv_sec == inode->i_mtime.tv_sec &&
UDF_I_CRTIME(inode).tv_nsec > inode->i_mtime.tv_nsec)) {
UDF_I_CRTIME(inode).tv_nsec > inode->i_mtime.tv_nsec))
UDF_I_CRTIME(inode) = inode->i_mtime;
}
if (UDF_I_CRTIME(inode).tv_sec > inode->i_ctime.tv_sec ||
(UDF_I_CRTIME(inode).tv_sec == inode->i_ctime.tv_sec &&
UDF_I_CRTIME(inode).tv_nsec > inode->i_ctime.tv_nsec)) {
UDF_I_CRTIME(inode).tv_nsec > inode->i_ctime.tv_nsec))
UDF_I_CRTIME(inode) = inode->i_ctime;
}
if (udf_time_to_stamp(&cpu_time, inode->i_atime))
efe->accessTime = cpu_to_lets(cpu_time);
......@@ -1544,24 +1644,27 @@ static int udf_update_inode(struct inode *inode, int do_sync)
else
fe->descTag.descVersion = cpu_to_le16(2);
fe->descTag.tagSerialNum = cpu_to_le16(sbi->s_serial_number);
fe->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
fe->descTag.tagLocation = cpu_to_le32(
UDF_I_LOCATION(inode).logicalBlockNum);
crclen += UDF_I_LENEATTR(inode) + UDF_I_LENALLOC(inode) - sizeof(tag);
fe->descTag.descCRCLength = cpu_to_le16(crclen);
fe->descTag.descCRC = cpu_to_le16(udf_crc((char *)fe + sizeof(tag), crclen, 0));
fe->descTag.descCRC = cpu_to_le16(udf_crc((char *)fe + sizeof(tag),
crclen, 0));
fe->descTag.tagChecksum = 0;
for (i = 0; i < 16; i++) {
for (i = 0; i < 16; i++)
if (i != 4)
fe->descTag.tagChecksum += ((uint8_t *)&(fe->descTag))[i];
}
fe->descTag.tagChecksum +=
((uint8_t *)&(fe->descTag))[i];
/* write the data blocks */
mark_buffer_dirty(bh);
if (do_sync) {
sync_dirty_buffer(bh);
if (buffer_req(bh) && !buffer_uptodate(bh)) {
printk("IO error syncing udf inode [%s:%08lx]\n",
inode->i_sb->s_id, inode->i_ino);
printk(KERN_WARNING "IO error syncing udf inode "
"[%s:%08lx]\n", inode->i_sb->s_id,
inode->i_ino);
err = -EIO;
}
}
......@@ -1587,7 +1690,8 @@ struct inode *udf_iget(struct super_block *sb, kernel_lb_addr ino)
if (is_bad_inode(inode))
goto out_iput;
if (ino.logicalBlockNum >= UDF_SB(sb)->s_partmaps[ino.partitionReferenceNum].s_partition_len) {
if (ino.logicalBlockNum >= UDF_SB(sb)->
s_partmaps[ino.partitionReferenceNum].s_partition_len) {
udf_debug("block=%d, partition=%d out of range\n",
ino.logicalBlockNum, ino.partitionReferenceNum);
make_bad_inode(inode);
......@@ -1601,7 +1705,7 @@ struct inode *udf_iget(struct super_block *sb, kernel_lb_addr ino)
return NULL;
}
int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
int8_t udf_add_aext(struct inode *inode, struct extent_position *epos,
kernel_lb_addr eloc, uint32_t elen, int inc)
{
int adsize;
......@@ -1612,7 +1716,9 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
uint8_t *ptr;
if (!epos->bh)
ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode);
ptr = UDF_I_DATA(inode) + epos->offset -
udf_file_entry_alloc_offset(inode) +
UDF_I_LENEATTR(inode);
else
ptr = epos->bh->b_data + epos->offset;
......@@ -1629,15 +1735,16 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
int err, loffset;
kernel_lb_addr obloc = epos->block;
if (!(epos->block.logicalBlockNum = udf_new_block(inode->i_sb, NULL,
obloc.partitionReferenceNum,
obloc.logicalBlockNum, &err))) {
epos->block.logicalBlockNum = udf_new_block(inode->i_sb, NULL,
obloc.partitionReferenceNum,
obloc.logicalBlockNum, &err);
if (!epos->block.logicalBlockNum)
return -1;
}
if (!(nbh = udf_tgetblk(inode->i_sb, udf_get_lb_pblock(inode->i_sb,
epos->block, 0)))) {
nbh = udf_tgetblk(inode->i_sb, udf_get_lb_pblock(inode->i_sb,
epos->block,
0));
if (!nbh)
return -1;
}
lock_buffer(nbh);
memset(nbh->b_data, 0x00, inode->i_sb->s_blocksize);
set_buffer_uptodate(nbh);
......@@ -1646,7 +1753,8 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
aed = (struct allocExtDesc *)(nbh->b_data);
if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT))
aed->previousAllocExtLocation = cpu_to_le32(obloc.logicalBlockNum);
aed->previousAllocExtLocation =
cpu_to_le32(obloc.logicalBlockNum);
if (epos->offset + adsize > inode->i_sb->s_blocksize) {
loffset = epos->offset;
aed->lengthAllocDescs = cpu_to_le32(adsize);
......@@ -1663,7 +1771,8 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
if (epos->bh) {
aed = (struct allocExtDesc *)epos->bh->b_data;
aed->lengthAllocDescs =
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
cpu_to_le32(le32_to_cpu(
aed->lengthAllocDescs) + adsize);
} else {
UDF_I_LENALLOC(inode) += adsize;
mark_inode_dirty(inode);
......@@ -1680,7 +1789,8 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
sad = (short_ad *)sptr;
sad->extLength = cpu_to_le32(EXT_NEXT_EXTENT_ALLOCDECS |
inode->i_sb->s_blocksize);
sad->extPosition = cpu_to_le32(epos->block.logicalBlockNum);
sad->extPosition =
cpu_to_le32(epos->block.logicalBlockNum);
break;
case ICBTAG_FLAG_AD_LONG:
lad = (long_ad *)sptr;
......@@ -1695,7 +1805,8 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
udf_update_tag(epos->bh->b_data, loffset);
else
udf_update_tag(epos->bh->b_data, sizeof(struct allocExtDesc));
udf_update_tag(epos->bh->b_data,
sizeof(struct allocExtDesc));
mark_buffer_dirty_inode(epos->bh, inode);
brelse(epos->bh);
} else {
......@@ -1712,18 +1823,22 @@ int8_t udf_add_aext(struct inode * inode, struct extent_position * epos,
} else {
aed = (struct allocExtDesc *)epos->bh->b_data;
aed->lengthAllocDescs =
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
udf_update_tag(epos->bh->b_data, epos->offset + (inc ? 0 : adsize));
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) +
adsize);
if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
udf_update_tag(epos->bh->b_data,
epos->offset + (inc ? 0 : adsize));
else
udf_update_tag(epos->bh->b_data, sizeof(struct allocExtDesc));
udf_update_tag(epos->bh->b_data,
sizeof(struct allocExtDesc));
mark_buffer_dirty_inode(epos->bh, inode);
}
return etype;
}
int8_t udf_write_aext(struct inode * inode, struct extent_position * epos,
int8_t udf_write_aext(struct inode *inode, struct extent_position *epos,
kernel_lb_addr eloc, uint32_t elen, int inc)
{
int adsize;
......@@ -1732,7 +1847,9 @@ int8_t udf_write_aext(struct inode * inode, struct extent_position * epos,
long_ad *lad;
if (!epos->bh)
ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode);
ptr = UDF_I_DATA(inode) + epos->offset -
udf_file_entry_alloc_offset(inode) +
UDF_I_LENEATTR(inode);
else
ptr = epos->bh->b_data + epos->offset;
......@@ -1757,9 +1874,11 @@ int8_t udf_write_aext(struct inode * inode, struct extent_position * epos,
if (epos->bh) {
if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
UDF_SB(inode->i_sb)->s_udfrev >= 0x0201) {
struct allocExtDesc *aed = (struct allocExtDesc *)epos->bh->b_data;
struct allocExtDesc *aed =
(struct allocExtDesc *)epos->bh->b_data;
udf_update_tag(epos->bh->b_data,
le32_to_cpu(aed->lengthAllocDescs) + sizeof(struct allocExtDesc));
le32_to_cpu(aed->lengthAllocDescs) +
sizeof(struct allocExtDesc));
}
mark_buffer_dirty_inode(epos->bh, inode);
} else {
......@@ -1772,19 +1891,21 @@ int8_t udf_write_aext(struct inode * inode, struct extent_position * epos,
return (elen >> 30);
}
int8_t udf_next_aext(struct inode * inode, struct extent_position * epos,
kernel_lb_addr * eloc, uint32_t * elen, int inc)
int8_t udf_next_aext(struct inode *inode, struct extent_position *epos,
kernel_lb_addr *eloc, uint32_t *elen, int inc)
{
int8_t etype;
while ((etype = udf_current_aext(inode, epos, eloc, elen, inc)) ==
(EXT_NEXT_EXTENT_ALLOCDECS >> 30)) {
int block;
epos->block = *eloc;
epos->offset = sizeof(struct allocExtDesc);
brelse(epos->bh);
if (!(epos->bh = udf_tread(inode->i_sb, udf_get_lb_pblock(inode->i_sb, epos->block, 0)))) {
udf_debug("reading block %d failed!\n",
udf_get_lb_pblock(inode->i_sb, epos->block, 0));
block = udf_get_lb_pblock(inode->i_sb, epos->block, 0);
epos->bh = udf_tread(inode->i_sb, block);
if (!epos->bh) {
udf_debug("reading block %d failed!\n", block);
return -1;
}
}
......@@ -1792,8 +1913,8 @@ int8_t udf_next_aext(struct inode * inode, struct extent_position * epos,
return etype;
}
int8_t udf_current_aext(struct inode * inode, struct extent_position * epos,
kernel_lb_addr * eloc, uint32_t * elen, int inc)
int8_t udf_current_aext(struct inode *inode, struct extent_position *epos,
kernel_lb_addr *eloc, uint32_t *elen, int inc)
{
int alen;
int8_t etype;
......@@ -1801,38 +1922,45 @@ int8_t udf_current_aext(struct inode * inode, struct extent_position * epos,
short_ad *sad;
long_ad *lad;
if (!epos->bh) {
if (!epos->offset)
epos->offset = udf_file_entry_alloc_offset(inode);
ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode);
alen = udf_file_entry_alloc_offset(inode) + UDF_I_LENALLOC(inode);
ptr = UDF_I_DATA(inode) + epos->offset -
udf_file_entry_alloc_offset(inode) +
UDF_I_LENEATTR(inode);
alen = udf_file_entry_alloc_offset(inode) +
UDF_I_LENALLOC(inode);
} else {
if (!epos->offset)
epos->offset = sizeof(struct allocExtDesc);
ptr = epos->bh->b_data + epos->offset;
alen = sizeof(struct allocExtDesc) +
le32_to_cpu(((struct allocExtDesc *)epos->bh->b_data)->lengthAllocDescs);
le32_to_cpu(((struct allocExtDesc *)epos->bh->b_data)->
lengthAllocDescs);
}
switch (UDF_I_ALLOCTYPE(inode)) {
case ICBTAG_FLAG_AD_SHORT:
if (!(sad = udf_get_fileshortad(ptr, alen, &epos->offset, inc)))
sad = udf_get_fileshortad(ptr, alen, &epos->offset, inc);
if (!sad)
return -1;
etype = le32_to_cpu(sad->extLength) >> 30;
eloc->logicalBlockNum = le32_to_cpu(sad->extPosition);
eloc->partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
eloc->partitionReferenceNum =
UDF_I_LOCATION(inode).partitionReferenceNum;
*elen = le32_to_cpu(sad->extLength) & UDF_EXTENT_LENGTH_MASK;
break;
case ICBTAG_FLAG_AD_LONG:
if (!(lad = udf_get_filelongad(ptr, alen, &epos->offset, inc)))
lad = udf_get_filelongad(ptr, alen, &epos->offset, inc);
if (!lad)
return -1;
etype = le32_to_cpu(lad->extLength) >> 30;
*eloc = lelb_to_cpu(lad->extLocation);
*elen = le32_to_cpu(lad->extLength) & UDF_EXTENT_LENGTH_MASK;
break;
default:
udf_debug("alloc_type = %d unsupported\n", UDF_I_ALLOCTYPE(inode));
udf_debug("alloc_type = %d unsupported\n",
UDF_I_ALLOCTYPE(inode));
return -1;
}
......@@ -1860,7 +1988,7 @@ static int8_t udf_insert_aext(struct inode *inode, struct extent_position epos,
return (nelen >> 30);
}
int8_t udf_delete_aext(struct inode * inode, struct extent_position epos,
int8_t udf_delete_aext(struct inode *inode, struct extent_position epos,
kernel_lb_addr eloc, uint32_t elen)
{
struct extent_position oepos;
......@@ -1907,12 +2035,15 @@ int8_t udf_delete_aext(struct inode * inode, struct extent_position epos,
} else {
aed = (struct allocExtDesc *)oepos.bh->b_data;
aed->lengthAllocDescs =
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - (2 * adsize));
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) -
(2 * adsize));
if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
udf_update_tag(oepos.bh->b_data, oepos.offset - (2 * adsize));
udf_update_tag(oepos.bh->b_data,
oepos.offset - (2 * adsize));
else
udf_update_tag(oepos.bh->b_data, sizeof(struct allocExtDesc));
udf_update_tag(oepos.bh->b_data,
sizeof(struct allocExtDesc));
mark_buffer_dirty_inode(oepos.bh, inode);
}
} else {
......@@ -1923,12 +2054,15 @@ int8_t udf_delete_aext(struct inode * inode, struct extent_position epos,
} else {
aed = (struct allocExtDesc *)oepos.bh->b_data;
aed->lengthAllocDescs =
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - adsize);
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) -
adsize);
if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
udf_update_tag(oepos.bh->b_data, epos.offset - adsize);
udf_update_tag(oepos.bh->b_data,
epos.offset - adsize);
else
udf_update_tag(oepos.bh->b_data, sizeof(struct allocExtDesc));
udf_update_tag(oepos.bh->b_data,
sizeof(struct allocExtDesc));
mark_buffer_dirty_inode(oepos.bh, inode);
}
}
......@@ -1939,12 +2073,13 @@ int8_t udf_delete_aext(struct inode * inode, struct extent_position epos,
return (elen >> 30);
}
int8_t inode_bmap(struct inode * inode, sector_t block,
struct extent_position * pos, kernel_lb_addr * eloc,
uint32_t * elen, sector_t * offset)
int8_t inode_bmap(struct inode *inode, sector_t block,
struct extent_position *pos, kernel_lb_addr *eloc,
uint32_t *elen, sector_t *offset)
{
unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
loff_t lbcount = 0, bcount =
(loff_t) block << inode->i_sb->s_blocksize_bits;
(loff_t) block << blocksize_bits;
int8_t etype;
if (block < 0) {
......@@ -1958,15 +2093,16 @@ int8_t inode_bmap(struct inode * inode, sector_t block,
*elen = 0;
do {
if ((etype = udf_next_aext(inode, pos, eloc, elen, 1)) == -1) {
*offset = (bcount - lbcount) >> inode->i_sb->s_blocksize_bits;
etype = udf_next_aext(inode, pos, eloc, elen, 1);
if (etype == -1) {
*offset = (bcount - lbcount) >> blocksize_bits;
UDF_I_LENEXTENTS(inode) = lbcount;
return -1;
}
lbcount += *elen;
} while (lbcount <= bcount);
*offset = (bcount + *elen - lbcount) >> inode->i_sb->s_blocksize_bits;
*offset = (bcount + *elen - lbcount) >> blocksize_bits;
return etype;
}
......@@ -1981,7 +2117,8 @@ long udf_block_map(struct inode *inode, sector_t block)
lock_kernel();
if (inode_bmap(inode, block, &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30))
if (inode_bmap(inode, block, &epos, &eloc, &elen, &offset) ==
(EXT_RECORDED_ALLOCATED >> 30))
ret = udf_get_lb_pblock(inode->i_sb, eloc, offset);
else
ret = 0;
......
fs/udf/misc.c
浏览文件 @ 4b11111a
......@@ -70,71 +70,84 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
struct extendedAttrHeaderDesc *eahd;
eahd = (struct extendedAttrHeaderDesc *)ea;
if (UDF_I_LENALLOC(inode)) {
if (UDF_I_LENALLOC(inode))
memmove(&ad[size], ad, UDF_I_LENALLOC(inode));
}
if (UDF_I_LENEATTR(inode)) {
/* check checksum/crc */
if (le16_to_cpu(eahd->descTag.tagIdent) != TAG_IDENT_EAHD ||
le32_to_cpu(eahd->descTag.tagLocation) != UDF_I_LOCATION(inode).logicalBlockNum) {
if (le16_to_cpu(eahd->descTag.tagIdent) !=
TAG_IDENT_EAHD ||
le32_to_cpu(eahd->descTag.tagLocation) !=
UDF_I_LOCATION(inode).logicalBlockNum)
return NULL;
}
} else {
struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
size -= sizeof(struct extendedAttrHeaderDesc);
UDF_I_LENEATTR(inode) += sizeof(struct extendedAttrHeaderDesc);
UDF_I_LENEATTR(inode) +=
sizeof(struct extendedAttrHeaderDesc);
eahd->descTag.tagIdent = cpu_to_le16(TAG_IDENT_EAHD);
if (sbi->s_udfrev >= 0x0200)
eahd->descTag.descVersion = cpu_to_le16(3);
else
eahd->descTag.descVersion = cpu_to_le16(2);
eahd->descTag.tagSerialNum = cpu_to_le16(sbi->s_serial_number);
eahd->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum);
eahd->descTag.tagSerialNum =
cpu_to_le16(sbi->s_serial_number);
eahd->descTag.tagLocation = cpu_to_le32(
UDF_I_LOCATION(inode).logicalBlockNum);
eahd->impAttrLocation = cpu_to_le32(0xFFFFFFFF);
eahd->appAttrLocation = cpu_to_le32(0xFFFFFFFF);
}
offset = UDF_I_LENEATTR(inode);
if (type < 2048) {
if (le32_to_cpu(eahd->appAttrLocation) < UDF_I_LENEATTR(inode)) {
uint32_t aal = le32_to_cpu(eahd->appAttrLocation);
if (le32_to_cpu(eahd->appAttrLocation) <
UDF_I_LENEATTR(inode)) {
uint32_t aal =
le32_to_cpu(eahd->appAttrLocation);
memmove(&ea[offset - aal + size],
&ea[aal], offset - aal);
offset -= aal;
eahd->appAttrLocation = cpu_to_le32(aal + size);
eahd->appAttrLocation =
cpu_to_le32(aal + size);
}
if (le32_to_cpu(eahd->impAttrLocation) < UDF_I_LENEATTR(inode)) {
uint32_t ial = le32_to_cpu(eahd->impAttrLocation);
if (le32_to_cpu(eahd->impAttrLocation) <
UDF_I_LENEATTR(inode)) {
uint32_t ial =
le32_to_cpu(eahd->impAttrLocation);
memmove(&ea[offset - ial + size],
&ea[ial], offset - ial);
offset -= ial;
eahd->impAttrLocation = cpu_to_le32(ial + size);
eahd->impAttrLocation =
cpu_to_le32(ial + size);
}
} else if (type < 65536) {
if (le32_to_cpu(eahd->appAttrLocation) < UDF_I_LENEATTR(inode)) {
uint32_t aal = le32_to_cpu(eahd->appAttrLocation);
if (le32_to_cpu(eahd->appAttrLocation) <
UDF_I_LENEATTR(inode)) {
uint32_t aal =
le32_to_cpu(eahd->appAttrLocation);
memmove(&ea[offset - aal + size],
&ea[aal], offset - aal);
offset -= aal;
eahd->appAttrLocation = cpu_to_le32(aal + size);
eahd->appAttrLocation =
cpu_to_le32(aal + size);
}
}
/* rewrite CRC + checksum of eahd */
crclen = sizeof(struct extendedAttrHeaderDesc) - sizeof(tag);
eahd->descTag.descCRCLength = cpu_to_le16(crclen);
eahd->descTag.descCRC = cpu_to_le16(udf_crc((char *)eahd +
sizeof(tag), crclen, 0));
sizeof(tag), crclen, 0));
eahd->descTag.tagChecksum = 0;
for (i = 0; i < 16; i++)
if (i != 4)
eahd->descTag.tagChecksum += ((uint8_t *)&(eahd->descTag))[i];
eahd->descTag.tagChecksum +=
((uint8_t *)&(eahd->descTag))[i];
UDF_I_LENEATTR(inode) += size;
return (struct genericFormat *)&ea[offset];
}
if (loc & 0x02) {
}
if (loc & 0x02)
;
return NULL;
}
......@@ -153,10 +166,11 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
eahd = (struct extendedAttrHeaderDesc *)ea;
/* check checksum/crc */
if (le16_to_cpu(eahd->descTag.tagIdent) != TAG_IDENT_EAHD ||
le32_to_cpu(eahd->descTag.tagLocation) != UDF_I_LOCATION(inode).logicalBlockNum) {
if (le16_to_cpu(eahd->descTag.tagIdent) !=
TAG_IDENT_EAHD ||
le32_to_cpu(eahd->descTag.tagLocation) !=
UDF_I_LOCATION(inode).logicalBlockNum)
return NULL;
}
if (type < 2048)
offset = sizeof(struct extendedAttrHeaderDesc);
......@@ -167,7 +181,8 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
while (offset < UDF_I_LENEATTR(inode)) {
gaf = (struct genericFormat *)&ea[offset];
if (le32_to_cpu(gaf->attrType) == type && gaf->attrSubtype == subtype)
if (le32_to_cpu(gaf->attrType) == type &&
gaf->attrSubtype == subtype)
return gaf;
else
offset += le32_to_cpu(gaf->attrLength);
......@@ -188,7 +203,7 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
* Written, tested, and released.
*/
struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
uint32_t location, uint16_t * ident)
uint32_t location, uint16_t *ident)
{
tag *tag_p;
struct buffer_head *bh = NULL;
......@@ -213,7 +228,8 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
if (location != le32_to_cpu(tag_p->tagLocation)) {
udf_debug("location mismatch block %u, tag %u != %u\n",
block + sbi->s_session, le32_to_cpu(tag_p->tagLocation), location);
block + sbi->s_session,
le32_to_cpu(tag_p->tagLocation), location);
goto error_out;
}
......@@ -239,9 +255,9 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
/* Verify the descriptor CRC */
if (le16_to_cpu(tag_p->descCRCLength) + sizeof(tag) > sb->s_blocksize ||
le16_to_cpu(tag_p->descCRC) == udf_crc(bh->b_data + sizeof(tag),
le16_to_cpu(tag_p->descCRCLength), 0)) {
le16_to_cpu(tag_p->descCRCLength), 0))
return bh;
}
udf_debug("Crc failure block %d: crc = %d, crclen = %d\n",
block + sbi->s_session, le16_to_cpu(tag_p->descCRC),
le16_to_cpu(tag_p->descCRCLength));
......@@ -252,7 +268,7 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
}
struct buffer_head *udf_read_ptagged(struct super_block *sb, kernel_lb_addr loc,
uint32_t offset, uint16_t * ident)
uint32_t offset, uint16_t *ident)
{
return udf_read_tagged(sb, udf_get_lb_pblock(sb, loc, offset),
loc.logicalBlockNum + offset, ident);
......
fs/udf/namei.c
浏览文件 @ 4b11111a
......@@ -43,7 +43,7 @@ static inline int udf_match(int len1, const char *name1, int len2,
int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
struct fileIdentDesc *sfi, struct udf_fileident_bh *fibh,
uint8_t * impuse, uint8_t * fileident)
uint8_t *impuse, uint8_t *fileident)
{
uint16_t crclen = fibh->eoffset - fibh->soffset - sizeof(tag);
uint16_t crc;
......@@ -68,7 +68,8 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
memcpy(fibh->ebh->b_data + offset, impuse, liu);
} else {
memcpy((uint8_t *)sfi->impUse, impuse, -offset);
memcpy(fibh->ebh->b_data, impuse - offset, liu + offset);
memcpy(fibh->ebh->b_data, impuse - offset,
liu + offset);
}
}
......@@ -80,8 +81,10 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
} else if (offset >= 0) {
memcpy(fibh->ebh->b_data + offset, fileident, lfi);
} else {
memcpy((uint8_t *)sfi->fileIdent + liu, fileident, -offset);
memcpy(fibh->ebh->b_data, fileident - offset, lfi + offset);
memcpy((uint8_t *)sfi->fileIdent + liu, fileident,
-offset);
memcpy(fibh->ebh->b_data, fileident - offset,
lfi + offset);
}
}
......@@ -101,13 +104,19 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
if (fibh->sbh == fibh->ebh) {
crc = udf_crc((uint8_t *)sfi->impUse,
crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc);
crclen + sizeof(tag) -
sizeof(struct fileIdentDesc), crc);
} else if (sizeof(struct fileIdentDesc) >= -fibh->soffset) {
crc = udf_crc(fibh->ebh->b_data + sizeof(struct fileIdentDesc) + fibh->soffset,
crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc);
crc = udf_crc(fibh->ebh->b_data +
sizeof(struct fileIdentDesc) +
fibh->soffset,
crclen + sizeof(tag) -
sizeof(struct fileIdentDesc),
crc);
} else {
crc = udf_crc((uint8_t *)sfi->impUse,
-fibh->soffset - sizeof(struct fileIdentDesc), crc);
-fibh->soffset - sizeof(struct fileIdentDesc),
crc);
crc = udf_crc(fibh->ebh->b_data, fibh->eoffset, crc);
}
......@@ -121,7 +130,8 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
cfi->descTag.tagChecksum = checksum;
if (adinicb || (sizeof(struct fileIdentDesc) <= -fibh->soffset)) {
memcpy((uint8_t *)sfi, (uint8_t *)cfi, sizeof(struct fileIdentDesc));
memcpy((uint8_t *)sfi, (uint8_t *)cfi,
sizeof(struct fileIdentDesc));
} else {
memcpy((uint8_t *)sfi, (uint8_t *)cfi, -fibh->soffset);
memcpy(fibh->ebh->b_data, (uint8_t *)cfi - fibh->soffset,
......@@ -159,22 +169,24 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
f_pos = (udf_ext0_offset(dir) >> 2);
fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
fibh->soffset = fibh->eoffset =
(f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
fibh->sbh = fibh->ebh = NULL;
} else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
&epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
&epos, &eloc, &elen, &offset) ==
(EXT_RECORDED_ALLOCATED >> 30)) {
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
} else {
} else
offset = 0;
}
if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) {
fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
if (!fibh->sbh) {
brelse(epos.bh);
return NULL;
}
......@@ -202,14 +214,18 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
} else {
int poffset; /* Unpaded ending offset */
poffset = fibh->soffset + sizeof(struct fileIdentDesc) + liu + lfi;
poffset = fibh->soffset + sizeof(struct fileIdentDesc) +
liu + lfi;
if (poffset >= lfi) {
nameptr = (uint8_t *)(fibh->ebh->b_data + poffset - lfi);
} else {
if (poffset >= lfi)
nameptr = (uint8_t *)(fibh->ebh->b_data +
poffset - lfi);
else {
nameptr = fname;
memcpy(nameptr, fi->fileIdent + liu, lfi - poffset);
memcpy(nameptr + lfi - poffset, fibh->ebh->b_data, poffset);
memcpy(nameptr, fi->fileIdent + liu,
lfi - poffset);
memcpy(nameptr + lfi - poffset,
fibh->ebh->b_data, poffset);
}
}
......@@ -226,11 +242,11 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
if (!lfi)
continue;
if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi))) {
if (udf_match(flen, fname, dentry->d_name.len, dentry->d_name.name)) {
brelse(epos.bh);
return fi;
}
flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
if (flen && udf_match(flen, fname, dentry->d_name.len,
dentry->d_name.name)) {
brelse(epos.bh);
return fi;
}
}
......@@ -291,16 +307,16 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
if (!strncmp(dentry->d_name.name, ".B=", 3)) {
kernel_lb_addr lb = {
.logicalBlockNum = 0,
.partitionReferenceNum = simple_strtoul(dentry->d_name.name + 3,
NULL, 0),
.partitionReferenceNum =
simple_strtoul(dentry->d_name.name + 3,
NULL, 0),
};
inode = udf_iget(dir->i_sb, lb);
if (!inode) {
unlock_kernel();
return ERR_PTR(-EACCES);
}
}
else
} else
#endif /* UDF_RECOVERY */
if (udf_find_entry(dir, dentry, &fibh, &cfi)) {
......@@ -347,8 +363,9 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
*err = -EINVAL;
return NULL;
}
if (!(namelen = udf_put_filename(sb, dentry->d_name.name, name,
dentry->d_name.len))) {
namelen = udf_put_filename(sb, dentry->d_name.name, name,
dentry->d_name.len);
if (!namelen) {
*err = -ENAMETOOLONG;
return NULL;
}
......@@ -360,22 +377,24 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
f_pos = (udf_ext0_offset(dir) >> 2);
fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
fibh->soffset = fibh->eoffset =
(f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
fibh->sbh = fibh->ebh = NULL;
} else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
&epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
&epos, &eloc, &elen, &offset) ==
(EXT_RECORDED_ALLOCATED >> 30)) {
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
} else {
} else
offset = 0;
}
if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) {
fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
if (!fibh->sbh) {
brelse(epos.bh);
*err = -EIO;
return NULL;
......@@ -406,33 +425,39 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
liu = le16_to_cpu(cfi->lengthOfImpUse);
lfi = cfi->lengthFileIdent;
if (fibh->sbh == fibh->ebh) {
if (fibh->sbh == fibh->ebh)
nameptr = fi->fileIdent + liu;
} else {
else {
int poffset; /* Unpaded ending offset */
poffset = fibh->soffset + sizeof(struct fileIdentDesc) + liu + lfi;
poffset = fibh->soffset + sizeof(struct fileIdentDesc) +
liu + lfi;
if (poffset >= lfi) {
nameptr = (char *)(fibh->ebh->b_data + poffset - lfi);
} else {
if (poffset >= lfi)
nameptr = (char *)(fibh->ebh->b_data +
poffset - lfi);
else {
nameptr = fname;
memcpy(nameptr, fi->fileIdent + liu, lfi - poffset);
memcpy(nameptr + lfi - poffset, fibh->ebh->b_data, poffset);
memcpy(nameptr, fi->fileIdent + liu,
lfi - poffset);
memcpy(nameptr + lfi - poffset,
fibh->ebh->b_data, poffset);
}
}
if ((cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) {
if (((sizeof(struct fileIdentDesc) + liu + lfi + 3) & ~3) == nfidlen) {
if (((sizeof(struct fileIdentDesc) +
liu + lfi + 3) & ~3) == nfidlen) {
brelse(epos.bh);
cfi->descTag.tagSerialNum = cpu_to_le16(1);
cfi->fileVersionNum = cpu_to_le16(1);
cfi->fileCharacteristics = 0;
cfi->lengthFileIdent = namelen;
cfi->lengthOfImpUse = cpu_to_le16(0);
if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name)) {
if (!udf_write_fi(dir, cfi, fi, fibh, NULL,
name))
return fi;
} else {
else {
*err = -EIO;
return NULL;
}
......@@ -442,8 +467,9 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
if (!lfi || !dentry)
continue;
if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi)) &&
udf_match(flen, fname, dentry->d_name.len, dentry->d_name.name)) {
flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
if (flen && udf_match(flen, fname, dentry->d_name.len,
dentry->d_name.name)) {
if (fibh->sbh != fibh->ebh)
brelse(fibh->ebh);
brelse(fibh->sbh);
......@@ -466,11 +492,14 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
if (fibh->sbh != fibh->ebh)
brelse(fibh->ebh);
brelse(fibh->sbh);
if (!(fibh->sbh = fibh->ebh = udf_expand_dir_adinicb(dir, &block, err)))
fibh->sbh = fibh->ebh =
udf_expand_dir_adinicb(dir, &block, err);
if (!fibh->sbh)
return NULL;
epos.block = UDF_I_LOCATION(dir);
eloc.logicalBlockNum = block;
eloc.partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
eloc.partitionReferenceNum =
UDF_I_LOCATION(dir).partitionReferenceNum;
elen = dir->i_sb->s_blocksize;
epos.offset = udf_file_entry_alloc_offset(dir);
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
......@@ -489,13 +518,16 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
block = UDF_I_LOCATION(dir).logicalBlockNum;
fi = (struct fileIdentDesc *)(UDF_I_DATA(dir) + fibh->soffset -
udf_ext0_offset(dir) +
UDF_I_LENEATTR(dir));
fi = (struct fileIdentDesc *)
(UDF_I_DATA(dir) + fibh->soffset -
udf_ext0_offset(dir) +
UDF_I_LENEATTR(dir));
} else {
block = eloc.logicalBlockNum + ((elen - 1) >>
dir->i_sb->s_blocksize_bits);
fi = (struct fileIdentDesc *)(fibh->sbh->b_data + fibh->soffset);
block = eloc.logicalBlockNum +
((elen - 1) >>
dir->i_sb->s_blocksize_bits);
fi = (struct fileIdentDesc *)
(fibh->sbh->b_data + fibh->soffset);
}
} else {
fibh->soffset = fibh->eoffset - sb->s_blocksize;
......@@ -507,7 +539,9 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
block = eloc.logicalBlockNum + ((elen - 1) >>
dir->i_sb->s_blocksize_bits);
fibh->ebh = udf_bread(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2), 1, err);
fibh->ebh = udf_bread(dir,
f_pos >> (dir->i_sb->s_blocksize_bits - 2),
1, err);
if (!fibh->ebh) {
brelse(epos.bh);
brelse(fibh->sbh);
......@@ -519,24 +553,26 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
(EXT_RECORDED_ALLOCATED >> 30)) {
block = eloc.logicalBlockNum + ((elen - 1) >>
dir->i_sb->s_blocksize_bits);
} else {
} else
block++;
}
brelse(fibh->sbh);
fibh->sbh = fibh->ebh;
fi = (struct fileIdentDesc *)(fibh->sbh->b_data);
} else {
fi = (struct fileIdentDesc *)
(fibh->sbh->b_data + sb->s_blocksize + fibh->soffset);
(fibh->sbh->b_data + sb->s_blocksize +
fibh->soffset);
}
}
memset(cfi, 0, sizeof(struct fileIdentDesc));
if (UDF_SB(sb)->s_udfrev >= 0x0200)
udf_new_tag((char *)cfi, TAG_IDENT_FID, 3, 1, block, sizeof(tag));
udf_new_tag((char *)cfi, TAG_IDENT_FID, 3, 1, block,
sizeof(tag));
else
udf_new_tag((char *)cfi, TAG_IDENT_FID, 2, 1, block, sizeof(tag));
udf_new_tag((char *)cfi, TAG_IDENT_FID, 2, 1, block,
sizeof(tag));
cfi->fileVersionNum = cpu_to_le16(1);
cfi->lengthFileIdent = namelen;
cfi->lengthOfImpUse = cpu_to_le16(0);
......@@ -593,7 +629,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
inode->i_mode = mode;
mark_inode_dirty(inode);
if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
if (!fi) {
inode->i_nlink--;
mark_inode_dirty(inode);
iput(inode);
......@@ -605,9 +642,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
mark_inode_dirty(dir);
}
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
......@@ -636,7 +672,8 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
inode->i_uid = current->fsuid;
init_special_inode(inode, mode, rdev);
if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
if (!fi) {
inode->i_nlink--;
mark_inode_dirty(inode);
iput(inode);
......@@ -648,9 +685,8 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL);
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
mark_inode_dirty(dir);
}
mark_inode_dirty(inode);
if (fibh.sbh != fibh.ebh)
......@@ -683,7 +719,8 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
inode->i_op = &udf_dir_inode_operations;
inode->i_fop = &udf_dir_operations;
if (!(fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err))) {
fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err);
if (!fi) {
inode->i_nlink--;
mark_inode_dirty(inode);
iput(inode);
......@@ -694,7 +731,8 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(dir));
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
cpu_to_le32(UDF_I_UNIQUE(dir) & 0x00000000FFFFFFFFUL);
cfi.fileCharacteristics = FID_FILE_CHAR_DIRECTORY | FID_FILE_CHAR_PARENT;
cfi.fileCharacteristics =
FID_FILE_CHAR_DIRECTORY | FID_FILE_CHAR_PARENT;
udf_write_fi(inode, &cfi, fi, &fibh, NULL, NULL);
brelse(fibh.sbh);
inode->i_mode = S_IFDIR | mode;
......@@ -702,7 +740,8 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
inode->i_mode |= S_ISGID;
mark_inode_dirty(inode);
if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
if (!fi) {
inode->i_nlink = 0;
mark_inode_dirty(inode);
iput(inode);
......@@ -741,23 +780,25 @@ static int empty_dir(struct inode *dir)
f_pos = (udf_ext0_offset(dir) >> 2);
fibh.soffset = fibh.eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
fibh.soffset = fibh.eoffset =
(f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
fibh.sbh = fibh.ebh = NULL;
} else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
&epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) {
else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2),
&epos, &eloc, &elen, &offset) ==
(EXT_RECORDED_ALLOCATED >> 30)) {
block = udf_get_lb_pblock(dir->i_sb, eloc, offset);
if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(short_ad);
else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG)
epos.offset -= sizeof(long_ad);
} else {
} else
offset = 0;
}
if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) {
fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block);
if (!fibh.sbh) {
brelse(epos.bh);
return 0;
}
......@@ -826,7 +867,8 @@ static int udf_rmdir(struct inode *dir, struct dentry *dentry)
clear_nlink(inode);
inode->i_size = 0;
inode_dec_link_count(dir);
inode->i_ctime = dir->i_ctime = dir->i_mtime = current_fs_time(dir->i_sb);
inode->i_ctime = dir->i_ctime = dir->i_mtime =
current_fs_time(dir->i_sb);
mark_inode_dirty(dir);
end_rmdir:
......@@ -902,7 +944,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
struct buffer_head *bh;
lock_kernel();
if (!(inode = udf_new_inode(dir, S_IFLNK, &err)))
inode = udf_new_inode(dir, S_IFLNK, &err);
if (!inode)
goto out;
inode->i_mode = S_IFLNK | S_IRWXUGO;
......@@ -914,22 +957,24 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
uint32_t elen;
block = udf_new_block(inode->i_sb, inode,
UDF_I_LOCATION(inode).partitionReferenceNum,
UDF_I_LOCATION(inode).logicalBlockNum, &err);
UDF_I_LOCATION(inode).partitionReferenceNum,
UDF_I_LOCATION(inode).logicalBlockNum, &err);
if (!block)
goto out_no_entry;
epos.block = UDF_I_LOCATION(inode);
epos.offset = udf_file_entry_alloc_offset(inode);
epos.bh = NULL;
eloc.logicalBlockNum = block;
eloc.partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum;
eloc.partitionReferenceNum =
UDF_I_LOCATION(inode).partitionReferenceNum;
elen = inode->i_sb->s_blocksize;
UDF_I_LENEXTENTS(inode) = elen;
udf_add_aext(inode, &epos, eloc, elen, 0);
brelse(epos.bh);
block = udf_get_pblock(inode->i_sb, block,
UDF_I_LOCATION(inode).partitionReferenceNum, 0);
UDF_I_LOCATION(inode).partitionReferenceNum,
0);
epos.bh = udf_tread(inode->i_sb, block);
lock_buffer(epos.bh);
memset(epos.bh->b_data, 0x00, inode->i_sb->s_blocksize);
......@@ -976,7 +1021,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
if (compstart[0] == '.') {
if ((symname - compstart) == 1)
pc->componentType = 4;
else if ((symname - compstart) == 2 && compstart[1] == '.')
else if ((symname - compstart) == 2 &&
compstart[1] == '.')
pc->componentType = 3;
}
......@@ -986,7 +1032,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
if (!namelen)
goto out_no_entry;
if (elen + sizeof(struct pathComponent) + namelen > eoffset)
if (elen + sizeof(struct pathComponent) + namelen >
eoffset)
goto out_no_entry;
else
pc->lengthComponentIdent = namelen;
......@@ -1009,16 +1056,19 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
UDF_I_LENALLOC(inode) = inode->i_size;
mark_inode_dirty(inode);
if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err)))
fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
if (!fi)
goto out_no_entry;
cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize);
cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
bh = UDF_SB(inode->i_sb)->s_lvid_bh;
if (bh) {
struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
struct logicalVolIntegrityDesc *lvid =
(struct logicalVolIntegrityDesc *)bh->b_data;
struct logicalVolHeaderDesc *lvhd;
uint64_t uniqueID;
lvhd = (struct logicalVolHeaderDesc *)(lvid->logicalVolContentsUse);
lvhd = (struct logicalVolHeaderDesc *)
lvid->logicalVolContentsUse;
uniqueID = le64_to_cpu(lvhd->uniqueID);
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
......@@ -1028,9 +1078,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
mark_buffer_dirty(bh);
}
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
mark_inode_dirty(dir);
}
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
brelse(fibh.sbh);
......@@ -1062,7 +1111,8 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
return -EMLINK;
}
if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) {
fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
if (!fi) {
unlock_kernel();
return err;
}
......@@ -1070,10 +1120,12 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode));
bh = UDF_SB(inode->i_sb)->s_lvid_bh;
if (bh) {
struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
struct logicalVolIntegrityDesc *lvid =
(struct logicalVolIntegrityDesc *)bh->b_data;
struct logicalVolHeaderDesc *lvhd;
uint64_t uniqueID;
lvhd = (struct logicalVolHeaderDesc *)(lvid->logicalVolContentsUse);
lvhd = (struct logicalVolHeaderDesc *)
(lvid->logicalVolContentsUse);
uniqueID = le64_to_cpu(lvhd->uniqueID);
*(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse =
cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL);
......@@ -1083,9 +1135,8 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
mark_buffer_dirty(bh);
}
udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL);
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) {
if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB)
mark_inode_dirty(dir);
}
if (fibh.sbh != fibh.ebh)
brelse(fibh.ebh);
......@@ -1109,13 +1160,15 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *old_inode = old_dentry->d_inode;
struct inode *new_inode = new_dentry->d_inode;
struct udf_fileident_bh ofibh, nfibh;
struct fileIdentDesc *ofi = NULL, *nfi = NULL, *dir_fi = NULL, ocfi, ncfi;
struct fileIdentDesc *ofi = NULL, *nfi = NULL, *dir_fi = NULL;
struct fileIdentDesc ocfi, ncfi;
struct buffer_head *dir_bh = NULL;
int retval = -ENOENT;
kernel_lb_addr tloc;
lock_kernel();
if ((ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi))) {
ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi);
if (ofi) {
if (ofibh.sbh != ofibh.ebh)
brelse(ofibh.ebh);
brelse(ofibh.sbh);
......@@ -1144,29 +1197,35 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
}
retval = -EIO;
if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) {
dir_fi = udf_get_fileident(UDF_I_DATA(old_inode) -
(UDF_I_EFE(old_inode) ?
sizeof(struct extendedFileEntry) :
sizeof(struct fileEntry)),
old_inode->i_sb->s_blocksize, &offset);
dir_fi = udf_get_fileident(
UDF_I_DATA(old_inode) -
(UDF_I_EFE(old_inode) ?
sizeof(struct extendedFileEntry) :
sizeof(struct fileEntry)),
old_inode->i_sb->s_blocksize, &offset);
} else {
dir_bh = udf_bread(old_inode, 0, 0, &retval);
if (!dir_bh)
goto end_rename;
dir_fi = udf_get_fileident(dir_bh->b_data, old_inode->i_sb->s_blocksize, &offset);
dir_fi = udf_get_fileident(dir_bh->b_data,
old_inode->i_sb->s_blocksize, &offset);
}
if (!dir_fi)
goto end_rename;
tloc = lelb_to_cpu(dir_fi->icb.extLocation);
if (udf_get_lb_pblock(old_inode->i_sb, tloc, 0) != old_dir->i_ino)
if (udf_get_lb_pblock(old_inode->i_sb, tloc, 0) !=
old_dir->i_ino)
goto end_rename;
retval = -EMLINK;
if (!new_inode && new_dir->i_nlink >= (256 << sizeof(new_dir->i_nlink)) - 1)
if (!new_inode &&
new_dir->i_nlink >=
(256 << sizeof(new_dir->i_nlink)) - 1)
goto end_rename;
}
if (!nfi) {
nfi = udf_add_entry(new_dir, new_dentry, &nfibh, &ncfi, &retval);
nfi = udf_add_entry(new_dir, new_dentry, &nfibh, &ncfi,
&retval);
if (!nfi)
goto end_rename;
}
......@@ -1199,17 +1258,18 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
if (dir_fi) {
dir_fi->icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(new_dir));
udf_update_tag((char *)dir_fi, (sizeof(struct fileIdentDesc) +
le16_to_cpu(dir_fi->lengthOfImpUse) + 3) & ~3);
if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) {
udf_update_tag((char *)dir_fi,
(sizeof(struct fileIdentDesc) +
le16_to_cpu(dir_fi->lengthOfImpUse) + 3) & ~3);
if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB)
mark_inode_dirty(old_inode);
} else {
else
mark_buffer_dirty_inode(dir_bh, old_inode);
}
inode_dec_link_count(old_dir);
if (new_inode) {
if (new_inode)
inode_dec_link_count(new_inode);
} else {
else {
inc_nlink(new_dir);
mark_inode_dirty(new_dir);
}
......
fs/udf/partition.c
浏览文件 @ 4b11111a
......@@ -34,8 +34,8 @@ inline uint32_t udf_get_pblock(struct super_block *sb, uint32_t block,
struct udf_sb_info *sbi = UDF_SB(sb);
struct udf_part_map *map;
if (partition >= sbi->s_partitions) {
udf_debug("block=%d, partition=%d, offset=%d: invalid partition\n",
block, partition, offset);
udf_debug("block=%d, partition=%d, offset=%d: "
"invalid partition\n", block, partition, offset);
return 0xFFFFFFFF;
}
map = &sbi->s_partmaps[partition];
......@@ -54,13 +54,15 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
uint32_t loc;
struct udf_sb_info *sbi = UDF_SB(sb);
struct udf_part_map *map;
struct udf_virtual_data *vdata;
map = &sbi->s_partmaps[partition];
index = (sb->s_blocksize - map->s_type_specific.s_virtual.s_start_offset) / sizeof(uint32_t);
vdata = &map->s_type_specific.s_virtual;
index = (sb->s_blocksize - vdata->s_start_offset) / sizeof(uint32_t);
if (block > map->s_type_specific.s_virtual.s_num_entries) {
udf_debug("Trying to access block beyond end of VAT (%d max %d)\n",
block, map->s_type_specific.s_virtual.s_num_entries);
if (block > vdata->s_num_entries) {
udf_debug("Trying to access block beyond end of VAT "
"(%d max %d)\n", block, vdata->s_num_entries);
return 0xFFFFFFFF;
}
......@@ -70,12 +72,13 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
index = block % (sb->s_blocksize / sizeof(uint32_t));
} else {
newblock = 0;
index = map->s_type_specific.s_virtual.s_start_offset / sizeof(uint32_t) + block;
index = vdata->s_start_offset / sizeof(uint32_t) + block;
}
loc = udf_block_map(sbi->s_vat_inode, newblock);
if (!(bh = sb_bread(sb, loc))) {
bh = sb_bread(sb, loc);
if (!bh) {
udf_debug("get_pblock(UDF_VIRTUAL_MAP:%p,%d,%d) VAT: %d[%d]\n",
sb, block, partition, loc, index);
return 0xFFFFFFFF;
......@@ -85,17 +88,19 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
brelse(bh);
if (UDF_I_LOCATION(sbi->s_vat_inode).partitionReferenceNum == partition) {
if (UDF_I_LOCATION(sbi->s_vat_inode).partitionReferenceNum ==
partition) {
udf_debug("recursive call to udf_get_pblock!\n");
return 0xFFFFFFFF;
}
return udf_get_pblock(sb, loc,
UDF_I_LOCATION(sbi->s_vat_inode).partitionReferenceNum,
UDF_I_LOCATION(sbi->s_vat_inode).
partitionReferenceNum,
offset);
}
inline uint32_t udf_get_pblock_virt20(struct super_block * sb, uint32_t block,
inline uint32_t udf_get_pblock_virt20(struct super_block *sb, uint32_t block,
uint16_t partition, uint32_t offset)
{
return udf_get_pblock_virt15(sb, block, partition, offset);
......@@ -109,27 +114,32 @@ uint32_t udf_get_pblock_spar15(struct super_block *sb, uint32_t block,
struct udf_sb_info *sbi = UDF_SB(sb);
struct udf_part_map *map;
uint32_t packet;
struct udf_sparing_data *sdata;
map = &sbi->s_partmaps[partition];
packet = (block + offset) & ~(map->s_type_specific.s_sparing.s_packet_len - 1);
sdata = &map->s_type_specific.s_sparing;
packet = (block + offset) & ~(sdata->s_packet_len - 1);
for (i = 0; i < 4; i++) {
if (map->s_type_specific.s_sparing.s_spar_map[i] != NULL) {
st = (struct sparingTable *)map->s_type_specific.s_sparing.s_spar_map[i]->b_data;
if (sdata->s_spar_map[i] != NULL) {
st = (struct sparingTable *)
sdata->s_spar_map[i]->b_data;
break;
}
}
if (st) {
for (i = 0; i < le16_to_cpu(st->reallocationTableLen); i++) {
if (le32_to_cpu(st->mapEntry[i].origLocation) >= 0xFFFFFFF0) {
struct sparingEntry *entry = &st->mapEntry[i];
u32 origLoc = le32_to_cpu(entry->origLocation);
if (origLoc >= 0xFFFFFFF0)
break;
} else if (le32_to_cpu(st->mapEntry[i].origLocation) == packet) {
return le32_to_cpu(st->mapEntry[i].mappedLocation) +
((block + offset) & (map->s_type_specific.s_sparing.s_packet_len - 1));
} else if (le32_to_cpu(st->mapEntry[i].origLocation) > packet) {
else if (origLoc == packet)
return le32_to_cpu(entry->mappedLocation) +
((block + offset) &
(sdata->s_packet_len - 1));
else if (origLoc > packet)
break;
}
}
}
......@@ -144,63 +154,101 @@ int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block)
uint32_t packet;
int i, j, k, l;
struct udf_sb_info *sbi = UDF_SB(sb);
u16 reallocationTableLen;
struct buffer_head *bh;
for (i = 0; i < sbi->s_partitions; i++) {
struct udf_part_map *map = &sbi->s_partmaps[i];
if (old_block > map->s_partition_root &&
old_block < map->s_partition_root + map->s_partition_len) {
sdata = &map->s_type_specific.s_sparing;
packet = (old_block - map->s_partition_root) & ~(sdata->s_packet_len - 1);
packet = (old_block - map->s_partition_root) &
~(sdata->s_packet_len - 1);
for (j = 0; j < 4; j++) {
if (map->s_type_specific.s_sparing.s_spar_map[j] != NULL) {
st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
for (j = 0; j < 4; j++)
if (sdata->s_spar_map[j] != NULL) {
st = (struct sparingTable *)
sdata->s_spar_map[j]->b_data;
break;
}
}
if (!st)
return 1;
for (k = 0; k < le16_to_cpu(st->reallocationTableLen); k++) {
if (le32_to_cpu(st->mapEntry[k].origLocation) == 0xFFFFFFFF) {
reallocationTableLen =
le16_to_cpu(st->reallocationTableLen);
for (k = 0; k < reallocationTableLen; k++) {
struct sparingEntry *entry = &st->mapEntry[k];
u32 origLoc = le32_to_cpu(entry->origLocation);
if (origLoc == 0xFFFFFFFF) {
for (; j < 4; j++) {
if (sdata->s_spar_map[j]) {
st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
st->mapEntry[k].origLocation = cpu_to_le32(packet);
udf_update_tag((char *)st, sizeof(struct sparingTable) + le16_to_cpu(st->reallocationTableLen) * sizeof(struct sparingEntry));
mark_buffer_dirty(sdata->s_spar_map[j]);
}
int len;
bh = sdata->s_spar_map[j];
if (!bh)
continue;
st = (struct sparingTable *)
bh->b_data;
entry->origLocation =
cpu_to_le32(packet);
len =
sizeof(struct sparingTable) +
reallocationTableLen *
sizeof(struct sparingEntry);
udf_update_tag((char *)st, len);
mark_buffer_dirty(bh);
}
*new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
((old_block - map->s_partition_root) & (sdata->s_packet_len - 1));
*new_block = le32_to_cpu(
entry->mappedLocation) +
((old_block -
map->s_partition_root) &
(sdata->s_packet_len - 1));
return 0;
} else if (le32_to_cpu(st->mapEntry[k].origLocation) == packet) {
*new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
((old_block - map->s_partition_root) & (sdata->s_packet_len - 1));
} else if (origLoc == packet) {
*new_block = le32_to_cpu(
entry->mappedLocation) +
((old_block -
map->s_partition_root) &
(sdata->s_packet_len - 1));
return 0;
} else if (le32_to_cpu(st->mapEntry[k].origLocation) > packet) {
} else if (origLoc > packet)
break;
}
}
for (l = k; l < le16_to_cpu(st->reallocationTableLen); l++) {
if (le32_to_cpu(st->mapEntry[l].origLocation) == 0xFFFFFFFF) {
for (; j < 4; j++) {
if (sdata->s_spar_map[j]) {
st = (struct sparingTable *)sdata->s_spar_map[j]->b_data;
mapEntry = st->mapEntry[l];
mapEntry.origLocation = cpu_to_le32(packet);
memmove(&st->mapEntry[k + 1], &st->mapEntry[k], (l - k) * sizeof(struct sparingEntry));
st->mapEntry[k] = mapEntry;
udf_update_tag((char *)st, sizeof(struct sparingTable) + le16_to_cpu(st->reallocationTableLen) * sizeof(struct sparingEntry));
mark_buffer_dirty(sdata->s_spar_map[j]);
}
}
*new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) +
((old_block - map->s_partition_root) & (sdata->s_packet_len - 1));
return 0;
for (l = k; l < reallocationTableLen; l++) {
struct sparingEntry *entry = &st->mapEntry[l];
u32 origLoc = le32_to_cpu(entry->origLocation);
if (origLoc != 0xFFFFFFFF)
continue;
for (; j < 4; j++) {
bh = sdata->s_spar_map[j];
if (!bh)
continue;
st = (struct sparingTable *)bh->b_data;
mapEntry = st->mapEntry[l];
mapEntry.origLocation =
cpu_to_le32(packet);
memmove(&st->mapEntry[k + 1],
&st->mapEntry[k],
(l - k) *
sizeof(struct sparingEntry));
st->mapEntry[k] = mapEntry;
udf_update_tag((char *)st,
sizeof(struct sparingTable) +
reallocationTableLen *
sizeof(struct sparingEntry));
mark_buffer_dirty(bh);
}
*new_block =
le32_to_cpu(
st->mapEntry[k].mappedLocation) +
((old_block - map->s_partition_root) &
(sdata->s_packet_len - 1));
return 0;
}
return 1;
......
fs/udf/super.c
浏览文件 @ 4b11111a
......@@ -98,9 +98,11 @@ static int udf_statfs(struct dentry *, struct kstatfs *);
struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi)
{
struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
struct logicalVolIntegrityDesc *lvid =
(struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
__u32 number_of_partitions = le32_to_cpu(lvid->numOfPartitions);
__u32 offset = number_of_partitions * 2 * sizeof(uint32_t)/sizeof(uint8_t);
__u32 offset = number_of_partitions * 2 *
sizeof(uint32_t)/sizeof(uint8_t);
return (struct logicalVolIntegrityDescImpUse *)&(lvid->impUse[offset]);
}
......@@ -713,16 +715,23 @@ static void udf_find_anchor(struct super_block *sb)
lastblock = last[i] - sbi->s_session;
sbi->s_anchor[0] = lastblock;
sbi->s_anchor[1] = lastblock - 256;
} else if (location == udf_variable_to_fixed(last[i]) - sbi->s_session) {
} else if (location ==
udf_variable_to_fixed(last[i]) -
sbi->s_session) {
UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
lastblock = udf_variable_to_fixed(last[i]) - sbi->s_session;
lastblock =
udf_variable_to_fixed(last[i]) -
sbi->s_session;
sbi->s_anchor[0] = lastblock;
sbi->s_anchor[1] = lastblock - 256 - sbi->s_session;
sbi->s_anchor[1] = lastblock - 256 -
sbi->s_session;
} else {
udf_debug("Anchor found at block %d, location mismatch %d.\n",
udf_debug("Anchor found at block %d, "
"location mismatch %d.\n",
last[i], location);
}
} else if (ident == TAG_IDENT_FE || ident == TAG_IDENT_EFE) {
} else if (ident == TAG_IDENT_FE ||
ident == TAG_IDENT_EFE) {
lastblock = last[i];
sbi->s_anchor[3] = 512;
} else {
......@@ -731,31 +740,40 @@ static void udf_find_anchor(struct super_block *sb)
bh = sb_bread(sb, last[i] - 256);
if (bh) {
tag *t = (tag *)bh->b_data;
ident = le16_to_cpu(t->tagIdent);
location = le32_to_cpu(t->tagLocation);
ident = le16_to_cpu(
t->tagIdent);
location = le32_to_cpu(
t->tagLocation);
brelse(bh);
}
}
if (ident == TAG_IDENT_AVDP &&
location == last[i] - 256 - sbi->s_session) {
location == last[i] - 256 -
sbi->s_session) {
lastblock = last[i];
sbi->s_anchor[1] = last[i] - 256;
} else {
ident = location = 0;
if (last[i] >= 312 + sbi->s_session) {
bh = sb_bread(sb, last[i] - 312 - sbi->s_session);
bh = sb_bread(sb,
last[i] - 312 -
sbi->s_session);
if (bh) {
tag *t = (tag *)bh->b_data;
ident = le16_to_cpu(t->tagIdent);
location = le32_to_cpu(t->tagLocation);
tag *t = (tag *)
bh->b_data;
ident = le16_to_cpu(
t->tagIdent);
location = le32_to_cpu(
t->tagLocation);
brelse(bh);
}
}
if (ident == TAG_IDENT_AVDP &&
location == udf_variable_to_fixed(last[i]) - 256) {
UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
UDF_SET_FLAG(sb,
UDF_FLAG_VARCONV);
lastblock = udf_variable_to_fixed(last[i]);
sbi->s_anchor[1] = lastblock - 256;
}
......@@ -787,7 +805,8 @@ static void udf_find_anchor(struct super_block *sb)
else {
brelse(bh);
if ((ident != TAG_IDENT_AVDP) &&
(i || (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE)))
(i || (ident != TAG_IDENT_FE &&
ident != TAG_IDENT_EFE)))
sbi->s_anchor[i] = 0;
}
}
......@@ -848,11 +867,12 @@ static int udf_find_fileset(struct super_block *sb,
case TAG_IDENT_SBD:
{
struct spaceBitmapDesc *sp;
sp = (struct spaceBitmapDesc *)bh->b_data;
sp = (struct spaceBitmapDesc *)
bh->b_data;
newfileset.logicalBlockNum += 1 +
((le32_to_cpu(sp->numOfBytes) +
sizeof(struct spaceBitmapDesc) - 1)
>> sb->s_blocksize_bits);
sizeof(struct spaceBitmapDesc)
- 1) >> sb->s_blocksize_bits);
brelse(bh);
break;
}
......@@ -908,18 +928,17 @@ static void udf_load_pvoldesc(struct super_block *sb, struct buffer_head *bh)
UDF_SB(sb)->s_record_time.tv_nsec = recording_usec * 1000;
}
if (!udf_build_ustr(&instr, pvoldesc->volIdent, 32)) {
if (!udf_build_ustr(&instr, pvoldesc->volIdent, 32))
if (udf_CS0toUTF8(&outstr, &instr)) {
strncpy(UDF_SB(sb)->s_volume_ident, outstr.u_name,
outstr.u_len > 31 ? 31 : outstr.u_len);
udf_debug("volIdent[] = '%s'\n", UDF_SB(sb)->s_volume_ident);
udf_debug("volIdent[] = '%s'\n",
UDF_SB(sb)->s_volume_ident);
}
}
if (!udf_build_ustr(&instr, pvoldesc->volSetIdent, 128)) {
if (!udf_build_ustr(&instr, pvoldesc->volSetIdent, 128))
if (udf_CS0toUTF8(&outstr, &instr))
udf_debug("volSetIdent[] = '%s'\n", outstr.u_name);
}
}
static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
......@@ -987,18 +1006,30 @@ static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
for (i = 0; i < sbi->s_partitions; i++) {
map = &sbi->s_partmaps[i];
udf_debug("Searching map: (%d == %d)\n",
map->s_partition_num, le16_to_cpu(p->partitionNumber));
if (map->s_partition_num == le16_to_cpu(p->partitionNumber)) {
map->s_partition_len = le32_to_cpu(p->partitionLength); /* blocks */
map->s_partition_root = le32_to_cpu(p->partitionStartingLocation);
if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_READ_ONLY)
map->s_partition_flags |= UDF_PART_FLAG_READ_ONLY;
if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_WRITE_ONCE)
map->s_partition_flags |= UDF_PART_FLAG_WRITE_ONCE;
if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_REWRITABLE)
map->s_partition_flags |= UDF_PART_FLAG_REWRITABLE;
if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_OVERWRITABLE)
map->s_partition_flags |= UDF_PART_FLAG_OVERWRITABLE;
map->s_partition_num,
le16_to_cpu(p->partitionNumber));
if (map->s_partition_num ==
le16_to_cpu(p->partitionNumber)) {
map->s_partition_len =
le32_to_cpu(p->partitionLength); /* blocks */
map->s_partition_root =
le32_to_cpu(p->partitionStartingLocation);
if (le32_to_cpu(p->accessType) ==
PD_ACCESS_TYPE_READ_ONLY)
map->s_partition_flags |=
UDF_PART_FLAG_READ_ONLY;
if (le32_to_cpu(p->accessType) ==
PD_ACCESS_TYPE_WRITE_ONCE)
map->s_partition_flags |=
UDF_PART_FLAG_WRITE_ONCE;
if (le32_to_cpu(p->accessType) ==
PD_ACCESS_TYPE_REWRITABLE)
map->s_partition_flags |=
UDF_PART_FLAG_REWRITABLE;
if (le32_to_cpu(p->accessType) ==
PD_ACCESS_TYPE_OVERWRITABLE)
map->s_partition_flags |=
UDF_PART_FLAG_OVERWRITABLE;
if (!strcmp(p->partitionContents.ident,
PD_PARTITION_CONTENTS_NSR02) ||
......@@ -1006,7 +1037,8 @@ static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
PD_PARTITION_CONTENTS_NSR03)) {
struct partitionHeaderDesc *phd;
phd = (struct partitionHeaderDesc *)(p->partitionContentsUse);
phd = (struct partitionHeaderDesc *)
(p->partitionContentsUse);
if (phd->unallocSpaceTable.extLength) {
kernel_lb_addr loc = {
.logicalBlockNum = le32_to_cpu(phd->unallocSpaceTable.extPosition),
......@@ -1019,20 +1051,23 @@ static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
udf_debug("cannot load unallocSpaceTable (part %d)\n", i);
return 1;
}
map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_TABLE;
map->s_partition_flags |=
UDF_PART_FLAG_UNALLOC_TABLE;
udf_debug("unallocSpaceTable (part %d) @ %ld\n",
i, map->s_uspace.s_table->i_ino);
}
if (phd->unallocSpaceBitmap.extLength) {
map->s_uspace.s_bitmap = udf_sb_alloc_bitmap(sb, i);
if (map->s_uspace.s_bitmap != NULL) {
map->s_uspace.s_bitmap->s_extLength =
struct udf_bitmap *bitmap =
udf_sb_alloc_bitmap(sb, i);
map->s_uspace.s_bitmap = bitmap;
if (bitmap != NULL) {
bitmap->s_extLength =
le32_to_cpu(phd->unallocSpaceBitmap.extLength);
map->s_uspace.s_bitmap->s_extPosition =
bitmap->s_extPosition =
le32_to_cpu(phd->unallocSpaceBitmap.extPosition);
map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_BITMAP;
udf_debug("unallocSpaceBitmap (part %d) @ %d\n",
i, map->s_uspace.s_bitmap->s_extPosition);
i, bitmap->s_extPosition);
}
}
if (phd->partitionIntegrityTable.extLength)
......@@ -1049,37 +1084,39 @@ static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
udf_debug("cannot load freedSpaceTable (part %d)\n", i);
return 1;
}
map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
map->s_partition_flags |=
UDF_PART_FLAG_FREED_TABLE;
udf_debug("freedSpaceTable (part %d) @ %ld\n",
i, map->s_fspace.s_table->i_ino);
}
if (phd->freedSpaceBitmap.extLength) {
map->s_fspace.s_bitmap = udf_sb_alloc_bitmap(sb, i);
if (map->s_fspace.s_bitmap != NULL) {
map->s_fspace.s_bitmap->s_extLength =
struct udf_bitmap *bitmap =
udf_sb_alloc_bitmap(sb, i);
map->s_fspace.s_bitmap = bitmap;
if (bitmap != NULL) {
bitmap->s_extLength =
le32_to_cpu(phd->freedSpaceBitmap.extLength);
map->s_fspace.s_bitmap->s_extPosition =
bitmap->s_extPosition =
le32_to_cpu(phd->freedSpaceBitmap.extPosition);
map->s_partition_flags |= UDF_PART_FLAG_FREED_BITMAP;
udf_debug("freedSpaceBitmap (part %d) @ %d\n",
i, map->s_fspace.s_bitmap->s_extPosition);
i, bitmap->s_extPosition);
}
}
}
break;
}
}
if (i == sbi->s_partitions) {
if (i == sbi->s_partitions)
udf_debug("Partition (%d) not found in partition map\n",
le16_to_cpu(p->partitionNumber));
} else {
else
udf_debug("Partition (%d:%d type %x) starts at physical %d, "
"block length %d\n",
le16_to_cpu(p->partitionNumber), i,
map->s_partition_type,
map->s_partition_root,
map->s_partition_len);
}
return 0;
}
......@@ -1090,6 +1127,7 @@ static int udf_load_logicalvol(struct super_block *sb, struct buffer_head *bh,
int i, j, offset;
uint8_t type;
struct udf_sb_info *sbi = UDF_SB(sb);
struct genericPartitionMap *gpm;
lvd = (struct logicalVolDesc *)bh->b_data;
......@@ -1099,43 +1137,71 @@ static int udf_load_logicalvol(struct super_block *sb, struct buffer_head *bh,
for (i = 0, offset = 0;
i < sbi->s_partitions && offset < le32_to_cpu(lvd->mapTableLength);
i++, offset += ((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))->partitionMapLength) {
struct udf_part_map *map = &sbi->s_partmaps[i];
type = ((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))->partitionMapType;
i++, offset += gpm->partitionMapLength) {
struct udf_part_map *map = &sbi->s_partmaps[i];
gpm = (struct genericPartitionMap *)
&(lvd->partitionMaps[offset]);
type = gpm->partitionMapType;
if (type == 1) {
struct genericPartitionMap1 *gpm1 = (struct genericPartitionMap1 *)&(lvd->partitionMaps[offset]);
struct genericPartitionMap1 *gpm1 =
(struct genericPartitionMap1 *)gpm;
map->s_partition_type = UDF_TYPE1_MAP15;
map->s_volumeseqnum = le16_to_cpu(gpm1->volSeqNum);
map->s_partition_num = le16_to_cpu(gpm1->partitionNum);
map->s_partition_func = NULL;
} else if (type == 2) {
struct udfPartitionMap2 *upm2 = (struct udfPartitionMap2 *)&(lvd->partitionMaps[offset]);
if (!strncmp(upm2->partIdent.ident, UDF_ID_VIRTUAL, strlen(UDF_ID_VIRTUAL))) {
if (le16_to_cpu(((__le16 *)upm2->partIdent.identSuffix)[0]) == 0x0150) {
map->s_partition_type = UDF_VIRTUAL_MAP15;
map->s_partition_func = udf_get_pblock_virt15;
} else if (le16_to_cpu(((__le16 *)upm2->partIdent.identSuffix)[0]) == 0x0200) {
map->s_partition_type = UDF_VIRTUAL_MAP20;
map->s_partition_func = udf_get_pblock_virt20;
struct udfPartitionMap2 *upm2 =
(struct udfPartitionMap2 *)gpm;
if (!strncmp(upm2->partIdent.ident, UDF_ID_VIRTUAL,
strlen(UDF_ID_VIRTUAL))) {
u16 suf =
le16_to_cpu(((__le16 *)upm2->partIdent.
identSuffix)[0]);
if (suf == 0x0150) {
map->s_partition_type =
UDF_VIRTUAL_MAP15;
map->s_partition_func =
udf_get_pblock_virt15;
} else if (suf == 0x0200) {
map->s_partition_type =
UDF_VIRTUAL_MAP20;
map->s_partition_func =
udf_get_pblock_virt20;
}
} else if (!strncmp(upm2->partIdent.ident, UDF_ID_SPARABLE, strlen(UDF_ID_SPARABLE))) {
} else if (!strncmp(upm2->partIdent.ident,
UDF_ID_SPARABLE,
strlen(UDF_ID_SPARABLE))) {
uint32_t loc;
uint16_t ident;
struct sparingTable *st;
struct sparablePartitionMap *spm = (struct sparablePartitionMap *)&(lvd->partitionMaps[offset]);
struct sparablePartitionMap *spm =
(struct sparablePartitionMap *)gpm;
map->s_partition_type = UDF_SPARABLE_MAP15;
map->s_type_specific.s_sparing.s_packet_len = le16_to_cpu(spm->packetLength);
map->s_type_specific.s_sparing.s_packet_len =
le16_to_cpu(spm->packetLength);
for (j = 0; j < spm->numSparingTables; j++) {
loc = le32_to_cpu(spm->locSparingTable[j]);
map->s_type_specific.s_sparing.s_spar_map[j] =
udf_read_tagged(sb, loc, loc, &ident);
if (map->s_type_specific.s_sparing.s_spar_map[j] != NULL) {
st = (struct sparingTable *)map->s_type_specific.s_sparing.s_spar_map[j]->b_data;
if (ident != 0 ||
strncmp(st->sparingIdent.ident, UDF_ID_SPARING, strlen(UDF_ID_SPARING))) {
brelse(map->s_type_specific.s_sparing.s_spar_map[j]);
map->s_type_specific.s_sparing.s_spar_map[j] = NULL;
struct buffer_head *bh2;
loc = le32_to_cpu(
spm->locSparingTable[j]);
bh2 = udf_read_tagged(sb, loc, loc,
&ident);
map->s_type_specific.s_sparing.
s_spar_map[j] = bh2;
if (bh2 != NULL) {
st = (struct sparingTable *)
bh2->b_data;
if (ident != 0 || strncmp(
st->sparingIdent.ident,
UDF_ID_SPARING,
strlen(UDF_ID_SPARING))) {
brelse(bh2);
map->s_type_specific.
s_sparing.
s_spar_map[j] =
NULL;
}
}
}
......@@ -1218,6 +1284,7 @@ static int udf_process_sequence(struct super_block *sb, long block,
{
struct buffer_head *bh = NULL;
struct udf_vds_record vds[VDS_POS_LENGTH];
struct udf_vds_record *curr;
struct generic_desc *gd;
struct volDescPtr *vdp;
int done = 0;
......@@ -1240,43 +1307,51 @@ static int udf_process_sequence(struct super_block *sb, long block,
vdsn = le32_to_cpu(gd->volDescSeqNum);
switch (ident) {
case TAG_IDENT_PVD: /* ISO 13346 3/10.1 */
if (vdsn >= vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum) {
vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum = vdsn;
vds[VDS_POS_PRIMARY_VOL_DESC].block = block;
curr = &vds[VDS_POS_PRIMARY_VOL_DESC];
if (vdsn >= curr->volDescSeqNum) {
curr->volDescSeqNum = vdsn;
curr->block = block;
}
break;
case TAG_IDENT_VDP: /* ISO 13346 3/10.3 */
if (vdsn >= vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum) {
vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum = vdsn;
vds[VDS_POS_VOL_DESC_PTR].block = block;
curr = &vds[VDS_POS_VOL_DESC_PTR];
if (vdsn >= curr->volDescSeqNum) {
curr->volDescSeqNum = vdsn;
curr->block = block;
vdp = (struct volDescPtr *)bh->b_data;
next_s = le32_to_cpu(vdp->nextVolDescSeqExt.extLocation);
next_e = le32_to_cpu(vdp->nextVolDescSeqExt.extLength);
next_s = le32_to_cpu(
vdp->nextVolDescSeqExt.extLocation);
next_e = le32_to_cpu(
vdp->nextVolDescSeqExt.extLength);
next_e = next_e >> sb->s_blocksize_bits;
next_e += next_s;
}
break;
case TAG_IDENT_IUVD: /* ISO 13346 3/10.4 */
if (vdsn >= vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum) {
vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum = vdsn;
vds[VDS_POS_IMP_USE_VOL_DESC].block = block;
curr = &vds[VDS_POS_IMP_USE_VOL_DESC];
if (vdsn >= curr->volDescSeqNum) {
curr->volDescSeqNum = vdsn;
curr->block = block;
}
break;
case TAG_IDENT_PD: /* ISO 13346 3/10.5 */
if (!vds[VDS_POS_PARTITION_DESC].block)
vds[VDS_POS_PARTITION_DESC].block = block;
curr = &vds[VDS_POS_PARTITION_DESC];
if (!curr->block)
curr->block = block;
break;
case TAG_IDENT_LVD: /* ISO 13346 3/10.6 */
if (vdsn >= vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum) {
vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum = vdsn;
vds[VDS_POS_LOGICAL_VOL_DESC].block = block;
curr = &vds[VDS_POS_LOGICAL_VOL_DESC];
if (vdsn >= curr->volDescSeqNum) {
curr->volDescSeqNum = vdsn;
curr->block = block;
}
break;
case TAG_IDENT_USD: /* ISO 13346 3/10.8 */
if (vdsn >= vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum) {
vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum = vdsn;
vds[VDS_POS_UNALLOC_SPACE_DESC].block = block;
curr = &vds[VDS_POS_UNALLOC_SPACE_DESC];
if (vdsn >= curr->volDescSeqNum) {
curr->volDescSeqNum = vdsn;
curr->block = block;
}
break;
case TAG_IDENT_TD: /* ISO 13346 3/10.9 */
......@@ -1285,9 +1360,8 @@ static int udf_process_sequence(struct super_block *sb, long block,
block = next_s;
lastblock = next_e;
next_s = next_e = 0;
} else {
} else
done = 1;
}
break;
}
brelse(bh);
......@@ -1379,14 +1453,18 @@ static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
anchor = (struct anchorVolDescPtr *)bh->b_data;
/* Locate the main sequence */
main_s = le32_to_cpu(anchor->mainVolDescSeqExt.extLocation);
main_e = le32_to_cpu(anchor->mainVolDescSeqExt.extLength);
main_s = le32_to_cpu(
anchor->mainVolDescSeqExt.extLocation);
main_e = le32_to_cpu(
anchor->mainVolDescSeqExt.extLength);
main_e = main_e >> sb->s_blocksize_bits;
main_e += main_s;
/* Locate the reserve sequence */
reserve_s = le32_to_cpu(anchor->reserveVolDescSeqExt.extLocation);
reserve_e = le32_to_cpu(anchor->reserveVolDescSeqExt.extLength);
reserve_s = le32_to_cpu(
anchor->reserveVolDescSeqExt.extLocation);
reserve_e = le32_to_cpu(
anchor->reserveVolDescSeqExt.extLength);
reserve_e = reserve_e >> sb->s_blocksize_bits;
reserve_e += reserve_s;
......@@ -1394,8 +1472,10 @@ static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
/* Process the main & reserve sequences */
/* responsible for finding the PartitionDesc(s) */
if (!(udf_process_sequence(sb, main_s, main_e, fileset) &&
udf_process_sequence(sb, reserve_s, reserve_e, fileset)))
if (!(udf_process_sequence(sb, main_s, main_e,
fileset) &&
udf_process_sequence(sb, reserve_s, reserve_e,
fileset)))
break;
}
}
......@@ -1426,10 +1506,14 @@ static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
for (j = 0; j < sbi->s_partitions; j++) {
struct udf_part_map *map2 = &sbi->s_partmaps[j];
if (j != i &&
map->s_volumeseqnum == map2->s_volumeseqnum &&
map->s_partition_num == map2->s_partition_num) {
map->s_volumeseqnum ==
map2->s_volumeseqnum &&
map->s_partition_num ==
map2->s_partition_num) {
ino.partitionReferenceNum = j;
ino.logicalBlockNum = sbi->s_last_block - map2->s_partition_root;
ino.logicalBlockNum =
sbi->s_last_block -
map2->s_partition_root;
break;
}
}
......@@ -1448,17 +1532,22 @@ static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
(sbi->s_vat_inode->i_size - 36) >> 2;
} else if (map->s_partition_type == UDF_VIRTUAL_MAP20) {
uint32_t pos;
struct virtualAllocationTable20 *vat20;
pos = udf_block_map(sbi->s_vat_inode, 0);
bh = sb_bread(sb, pos);
if (!bh)
return 1;
vat20 = (struct virtualAllocationTable20 *)
bh->b_data +
udf_ext0_offset(sbi->s_vat_inode);
map->s_type_specific.s_virtual.s_start_offset =
le16_to_cpu(((struct virtualAllocationTable20 *)bh->b_data +
udf_ext0_offset(sbi->s_vat_inode))->lengthHeader) +
le16_to_cpu(vat20->lengthHeader) +
udf_ext0_offset(sbi->s_vat_inode);
map->s_type_specific.s_virtual.s_num_entries = (sbi->s_vat_inode->i_size -
map->s_type_specific.s_virtual.s_start_offset) >> 2;
map->s_type_specific.s_virtual.s_num_entries =
(sbi->s_vat_inode->i_size -
map->s_type_specific.s_virtual.
s_start_offset) >> 2;
brelse(bh);
}
map->s_partition_root = udf_get_pblock(sb, 0, i, 0);
......@@ -1477,8 +1566,10 @@ static void udf_open_lvid(struct super_block *sb)
if (bh) {
int i;
kernel_timestamp cpu_time;
struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sbi);
struct logicalVolIntegrityDesc *lvid =
(struct logicalVolIntegrityDesc *)bh->b_data;
struct logicalVolIntegrityDescImpUse *lvidiu =
udf_sb_lvidiu(sbi);
lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
......@@ -1486,8 +1577,10 @@ static void udf_open_lvid(struct super_block *sb)
lvid->recordingDateAndTime = cpu_to_lets(cpu_time);
lvid->integrityType = LVID_INTEGRITY_TYPE_OPEN;
lvid->descTag.descCRC = cpu_to_le16(udf_crc((char *)lvid + sizeof(tag),
le16_to_cpu(lvid->descTag.descCRCLength), 0));
lvid->descTag.descCRC = cpu_to_le16(
udf_crc((char *)lvid + sizeof(tag),
le16_to_cpu(lvid->descTag.descCRCLength),
0));
lvid->descTag.tagChecksum = 0;
for (i = 0; i < 16; i++)
......@@ -1513,22 +1606,25 @@ static void udf_close_lvid(struct super_block *sb)
lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
if (lvid->integrityType == LVID_INTEGRITY_TYPE_OPEN) {
struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sbi);
struct logicalVolIntegrityDescImpUse *lvidiu =
udf_sb_lvidiu(sbi);
lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
if (udf_time_to_stamp(&cpu_time, CURRENT_TIME))
lvid->recordingDateAndTime = cpu_to_lets(cpu_time);
if (UDF_MAX_WRITE_VERSION > le16_to_cpu(lvidiu->maxUDFWriteRev))
lvidiu->maxUDFWriteRev = cpu_to_le16(UDF_MAX_WRITE_VERSION);
lvidiu->maxUDFWriteRev =
cpu_to_le16(UDF_MAX_WRITE_VERSION);
if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFReadRev))
lvidiu->minUDFReadRev = cpu_to_le16(sbi->s_udfrev);
if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFWriteRev))
lvidiu->minUDFWriteRev = cpu_to_le16(sbi->s_udfrev);
lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE);
lvid->descTag.descCRC =
cpu_to_le16(udf_crc((char *)lvid + sizeof(tag),
le16_to_cpu(lvid->descTag.descCRCLength), 0));
lvid->descTag.descCRC = cpu_to_le16(
udf_crc((char *)lvid + sizeof(tag),
le16_to_cpu(lvid->descTag.descCRCLength),
0));
lvid->descTag.tagChecksum = 0;
for (i = 0; i < 16; i++)
......@@ -1544,7 +1640,8 @@ static void udf_sb_free_bitmap(struct udf_bitmap *bitmap)
{
int i;
int nr_groups = bitmap->s_nr_groups;
int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);
int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) *
nr_groups);
for (i = 0; i < nr_groups; i++)
if (bitmap->s_block_bitmap[i])
......@@ -1662,19 +1759,21 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
udf_debug("Lastblock=%d\n", sbi->s_last_block);
if (sbi->s_lvid_bh) {
struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sbi);
struct logicalVolIntegrityDescImpUse *lvidiu =
udf_sb_lvidiu(sbi);
uint16_t minUDFReadRev = le16_to_cpu(lvidiu->minUDFReadRev);
uint16_t minUDFWriteRev = le16_to_cpu(lvidiu->minUDFWriteRev);
/* uint16_t maxUDFWriteRev = le16_to_cpu(lvidiu->maxUDFWriteRev); */
/* uint16_t maxUDFWriteRev =
le16_to_cpu(lvidiu->maxUDFWriteRev); */
if (minUDFReadRev > UDF_MAX_READ_VERSION) {
printk(KERN_ERR "UDF-fs: minUDFReadRev=%x (max is %x)\n",
printk(KERN_ERR "UDF-fs: minUDFReadRev=%x "
"(max is %x)\n",
le16_to_cpu(lvidiu->minUDFReadRev),
UDF_MAX_READ_VERSION);
goto error_out;
} else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION) {
} else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION)
sb->s_flags |= MS_RDONLY;
}
sbi->s_udfrev = minUDFWriteRev;
......@@ -1689,8 +1788,10 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
goto error_out;
}
if (sbi->s_partmaps[sbi->s_partition].s_partition_flags & UDF_PART_FLAG_READ_ONLY) {
printk(KERN_NOTICE "UDF-fs: Partition marked readonly; forcing readonly mount\n");
if (sbi->s_partmaps[sbi->s_partition].s_partition_flags &
UDF_PART_FLAG_READ_ONLY) {
printk(KERN_NOTICE "UDF-fs: Partition marked readonly; "
"forcing readonly mount\n");
sb->s_flags |= MS_RDONLY;
}
......@@ -1716,7 +1817,8 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
/* perhaps it's not extensible enough, but for now ... */
inode = udf_iget(sb, rootdir);
if (!inode) {
printk(KERN_ERR "UDF-fs: Error in udf_iget, block=%d, partition=%d\n",
printk(KERN_ERR "UDF-fs: Error in udf_iget, block=%d, "
"partition=%d\n",
rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
goto error_out;
}
......@@ -1746,7 +1848,8 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
udf_sb_free_bitmap(map->s_fspace.s_bitmap);
if (map->s_partition_type == UDF_SPARABLE_MAP15)
for (i = 0; i < 4; i++)
brelse(map->s_type_specific.s_sparing.s_spar_map[i]);
brelse(map->s_type_specific.s_sparing.
s_spar_map[i]);
}
#ifdef CONFIG_UDF_NLS
if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
......@@ -1824,7 +1927,8 @@ static void udf_put_super(struct super_block *sb)
udf_sb_free_bitmap(map->s_fspace.s_bitmap);
if (map->s_partition_type == UDF_SPARABLE_MAP15)
for (i = 0; i < 4; i++)
brelse(map->s_type_specific.s_sparing.s_spar_map[i]);
brelse(map->s_type_specific.s_sparing.
s_spar_map[i]);
}
#ifdef CONFIG_UDF_NLS
if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
......@@ -1881,7 +1985,8 @@ static unsigned char udf_bitmap_lookup[16] = {
0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4
};
static unsigned int udf_count_free_bitmap(struct super_block *sb, struct udf_bitmap *bitmap)
static unsigned int udf_count_free_bitmap(struct super_block *sb,
struct udf_bitmap *bitmap)
{
struct buffer_head *bh = NULL;
unsigned int accum = 0;
......@@ -1942,7 +2047,8 @@ static unsigned int udf_count_free_bitmap(struct super_block *sb, struct udf_bit
return accum;
}
static unsigned int udf_count_free_table(struct super_block *sb, struct inode *table)
static unsigned int udf_count_free_table(struct super_block *sb,
struct inode *table)
{
unsigned int accum = 0;
uint32_t elen;
......@@ -1974,9 +2080,12 @@ static unsigned int udf_count_free(struct super_block *sb)
sbi = UDF_SB(sb);
if (sbi->s_lvid_bh) {
struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
struct logicalVolIntegrityDesc *lvid =
(struct logicalVolIntegrityDesc *)
sbi->s_lvid_bh->b_data;
if (le32_to_cpu(lvid->numOfPartitions) > sbi->s_partition) {
accum = le32_to_cpu(lvid->freeSpaceTable[sbi->s_partition]);
accum = le32_to_cpu(
lvid->freeSpaceTable[sbi->s_partition]);
if (accum == 0xFFFFFFFF)
accum = 0;
}
......
fs/udf/symlink.c
浏览文件 @ 4b11111a
......@@ -33,7 +33,8 @@
#include <linux/buffer_head.h>
#include "udf_i.h"
static void udf_pc_to_char(struct super_block *sb, char *from, int fromlen, char *to)
static void udf_pc_to_char(struct super_block *sb, char *from, int fromlen,
char *to)
{
struct pathComponent *pc;
int elen = 0;
......
fs/udf/truncate.c
浏览文件 @ 4b11111a
......@@ -154,7 +154,8 @@ void udf_discard_prealloc(struct inode *inode)
extent_trunc(inode, &epos, eloc, etype, elen, 0);
if (!epos.bh) {
UDF_I_LENALLOC(inode) =
epos.offset - udf_file_entry_alloc_offset(inode);
epos.offset -
udf_file_entry_alloc_offset(inode);
mark_inode_dirty(inode);
} else {
struct allocExtDesc *aed =
......@@ -213,7 +214,8 @@ void udf_truncate_extents(struct inode *inode)
else
lenalloc -= sizeof(struct allocExtDesc);
while ((etype = udf_current_aext(inode, &epos, &eloc, &elen, 0)) != -1) {
while ((etype = udf_current_aext(inode, &epos, &eloc,
&elen, 0)) != -1) {
if (etype == (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) {
udf_write_aext(inode, &epos, neloc, nelen, 0);
if (indirect_ext_len) {
......@@ -225,35 +227,43 @@ void udf_truncate_extents(struct inode *inode)
0, indirect_ext_len);
} else {
if (!epos.bh) {
UDF_I_LENALLOC(inode) = lenalloc;
UDF_I_LENALLOC(inode) =
lenalloc;
mark_inode_dirty(inode);
} else {
struct allocExtDesc *aed =
(struct allocExtDesc *)(epos.bh->b_data);
(struct allocExtDesc *)
(epos.bh->b_data);
int len =
sizeof(struct allocExtDesc);
aed->lengthAllocDescs =
cpu_to_le32(lenalloc);
if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT) ||
if (!UDF_QUERY_FLAG(sb,
UDF_FLAG_STRICT) ||
sbi->s_udfrev >= 0x0201)
udf_update_tag(epos.bh->b_data,
lenalloc +
sizeof(struct allocExtDesc));
else
udf_update_tag(epos.bh->b_data,
sizeof(struct allocExtDesc));
mark_buffer_dirty_inode(epos.bh, inode);
len += lenalloc;
udf_update_tag(epos.bh->b_data,
len);
mark_buffer_dirty_inode(
epos.bh, inode);
}
}
brelse(epos.bh);
epos.offset = sizeof(struct allocExtDesc);
epos.block = eloc;
epos.bh = udf_tread(sb, udf_get_lb_pblock(sb, eloc, 0));
epos.bh = udf_tread(sb,
udf_get_lb_pblock(sb, eloc, 0));
if (elen)
indirect_ext_len = (elen + sb->s_blocksize -1) >>
indirect_ext_len =
(elen + sb->s_blocksize - 1) >>
sb->s_blocksize_bits;
else
indirect_ext_len = 1;
} else {
extent_trunc(inode, &epos, eloc, etype, elen, 0);
extent_trunc(inode, &epos, eloc, etype,
elen, 0);
epos.offset += adsize;
}
}
......@@ -274,10 +284,11 @@ void udf_truncate_extents(struct inode *inode)
if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT) ||
sbi->s_udfrev >= 0x0201)
udf_update_tag(epos.bh->b_data,
lenalloc + sizeof(struct allocExtDesc));
lenalloc +
sizeof(struct allocExtDesc));
else
udf_update_tag(epos.bh->b_data,
sizeof(struct allocExtDesc));
sizeof(struct allocExtDesc));
mark_buffer_dirty_inode(epos.bh, inode);
}
}
......@@ -291,13 +302,16 @@ void udf_truncate_extents(struct inode *inode)
* extending the file by 'offset' blocks.
*/
if ((!epos.bh &&
epos.offset == udf_file_entry_alloc_offset(inode)) ||
(epos.bh && epos.offset == sizeof(struct allocExtDesc))) {
epos.offset ==
udf_file_entry_alloc_offset(inode)) ||
(epos.bh && epos.offset ==
sizeof(struct allocExtDesc))) {
/* File has no extents at all or has empty last
* indirect extent! Create a fake extent... */
extent.extLocation.logicalBlockNum = 0;
extent.extLocation.partitionReferenceNum = 0;
extent.extLength = EXT_NOT_RECORDED_NOT_ALLOCATED;
extent.extLength =
EXT_NOT_RECORDED_NOT_ALLOCATED;
} else {
epos.offset -= adsize;
etype = udf_next_aext(inode, &epos,
......@@ -306,7 +320,9 @@ void udf_truncate_extents(struct inode *inode)
extent.extLength |= etype << 30;
}
udf_extend_file(inode, &epos, &extent,
offset + ((inode->i_size & (sb->s_blocksize - 1)) != 0));
offset +
((inode->i_size &
(sb->s_blocksize - 1)) != 0));
}
}
UDF_I_LENEXTENTS(inode) = inode->i_size;
......
fs/udf/udftime.c
浏览文件 @ 4b11111a
......@@ -18,8 +18,10 @@
Boston, MA 02111-1307, USA. */
/*
* dgb 10/02/98: ripped this from glibc source to help convert timestamps to unix time
* 10/04/98: added new table-based lookup after seeing how ugly the gnu code is
* dgb 10/02/98: ripped this from glibc source to help convert timestamps
* to unix time
* 10/04/98: added new table-based lookup after seeing how ugly
* the gnu code is
* blf 09/27/99: ripped out all the old code and inserted new table from
* John Brockmeyer (without leap second corrections)
* rewrote udf_stamp_to_time and fixed timezone accounting in
......@@ -55,27 +57,27 @@ static const unsigned short int __mon_yday[2][13] = {
#define MAX_YEAR_SECONDS 69
#define SPD 0x15180 /*3600*24 */
#define SPY(y,l,s) (SPD * (365*y+l)+s)
static time_t year_seconds[MAX_YEAR_SECONDS]= {
/*1970*/ SPY( 0, 0,0), SPY( 1, 0,0), SPY( 2, 0,0), SPY( 3, 1,0),
/*1974*/ SPY( 4, 1,0), SPY( 5, 1,0), SPY( 6, 1,0), SPY( 7, 2,0),
/*1978*/ SPY( 8, 2,0), SPY( 9, 2,0), SPY(10, 2,0), SPY(11, 3,0),
/*1982*/ SPY(12, 3,0), SPY(13, 3,0), SPY(14, 3,0), SPY(15, 4,0),
/*1986*/ SPY(16, 4,0), SPY(17, 4,0), SPY(18, 4,0), SPY(19, 5,0),
/*1990*/ SPY(20, 5,0), SPY(21, 5,0), SPY(22, 5,0), SPY(23, 6,0),
/*1994*/ SPY(24, 6,0), SPY(25, 6,0), SPY(26, 6,0), SPY(27, 7,0),
/*1998*/ SPY(28, 7,0), SPY(29, 7,0), SPY(30, 7,0), SPY(31, 8,0),
/*2002*/ SPY(32, 8,0), SPY(33, 8,0), SPY(34, 8,0), SPY(35, 9,0),
/*2006*/ SPY(36, 9,0), SPY(37, 9,0), SPY(38, 9,0), SPY(39,10,0),
/*2010*/ SPY(40,10,0), SPY(41,10,0), SPY(42,10,0), SPY(43,11,0),
/*2014*/ SPY(44,11,0), SPY(45,11,0), SPY(46,11,0), SPY(47,12,0),
/*2018*/ SPY(48,12,0), SPY(49,12,0), SPY(50,12,0), SPY(51,13,0),
/*2022*/ SPY(52,13,0), SPY(53,13,0), SPY(54,13,0), SPY(55,14,0),
/*2026*/ SPY(56,14,0), SPY(57,14,0), SPY(58,14,0), SPY(59,15,0),
/*2030*/ SPY(60,15,0), SPY(61,15,0), SPY(62,15,0), SPY(63,16,0),
/*2034*/ SPY(64,16,0), SPY(65,16,0), SPY(66,16,0), SPY(67,17,0),
/*2038*/ SPY(68,17,0)
#define SPY(y, l, s) (SPD * (365 * y + l) + s)
static time_t year_seconds[MAX_YEAR_SECONDS] = {
/*1970*/ SPY(0, 0, 0), SPY(1, 0, 0), SPY(2, 0, 0), SPY(3, 1, 0),
/*1974*/ SPY(4, 1, 0), SPY(5, 1, 0), SPY(6, 1, 0), SPY(7, 2, 0),
/*1978*/ SPY(8, 2, 0), SPY(9, 2, 0), SPY(10, 2, 0), SPY(11, 3, 0),
/*1982*/ SPY(12, 3, 0), SPY(13, 3, 0), SPY(14, 3, 0), SPY(15, 4, 0),
/*1986*/ SPY(16, 4, 0), SPY(17, 4, 0), SPY(18, 4, 0), SPY(19, 5, 0),
/*1990*/ SPY(20, 5, 0), SPY(21, 5, 0), SPY(22, 5, 0), SPY(23, 6, 0),
/*1994*/ SPY(24, 6, 0), SPY(25, 6, 0), SPY(26, 6, 0), SPY(27, 7, 0),
/*1998*/ SPY(28, 7, 0), SPY(29, 7, 0), SPY(30, 7, 0), SPY(31, 8, 0),
/*2002*/ SPY(32, 8, 0), SPY(33, 8, 0), SPY(34, 8, 0), SPY(35, 9, 0),
/*2006*/ SPY(36, 9, 0), SPY(37, 9, 0), SPY(38, 9, 0), SPY(39, 10, 0),
/*2010*/ SPY(40, 10, 0), SPY(41, 10, 0), SPY(42, 10, 0), SPY(43, 11, 0),
/*2014*/ SPY(44, 11, 0), SPY(45, 11, 0), SPY(46, 11, 0), SPY(47, 12, 0),
/*2018*/ SPY(48, 12, 0), SPY(49, 12, 0), SPY(50, 12, 0), SPY(51, 13, 0),
/*2022*/ SPY(52, 13, 0), SPY(53, 13, 0), SPY(54, 13, 0), SPY(55, 14, 0),
/*2026*/ SPY(56, 14, 0), SPY(57, 14, 0), SPY(58, 14, 0), SPY(59, 15, 0),
/*2030*/ SPY(60, 15, 0), SPY(61, 15, 0), SPY(62, 15, 0), SPY(63, 16, 0),
/*2034*/ SPY(64, 16, 0), SPY(65, 16, 0), SPY(66, 16, 0), SPY(67, 17, 0),
/*2038*/ SPY(68, 17, 0)
};
extern struct timezone sys_tz;
......@@ -115,7 +117,7 @@ time_t *udf_stamp_to_time(time_t *dest, long *dest_usec, kernel_timestamp src)
return dest;
}
kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
kernel_timestamp *udf_time_to_stamp(kernel_timestamp *dest, struct timespec ts)
{
long int days, rem, y;
const unsigned short int *ip;
......@@ -137,7 +139,7 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
dest->second = rem % 60;
y = 1970;
#define DIV(a,b) ((a) / (b) - ((a) % (b) < 0))
#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
while (days < 0 || days >= (__isleap(y) ? 366 : 365)) {
......@@ -145,8 +147,8 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
/* Adjust DAYS and Y to match the guessed year. */
days -= ((yg - y) * 365
+ LEAPS_THRU_END_OF (yg - 1)
- LEAPS_THRU_END_OF (y - 1));
+ LEAPS_THRU_END_OF(yg - 1)
- LEAPS_THRU_END_OF(y - 1));
y = yg;
}
dest->year = y;
......@@ -158,7 +160,8 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
dest->day = days + 1;
dest->centiseconds = ts.tv_nsec / 10000000;
dest->hundredsOfMicroseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000) / 100;
dest->hundredsOfMicroseconds = (ts.tv_nsec / 1000 -
dest->centiseconds * 10000) / 100;
dest->microseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000 -
dest->hundredsOfMicroseconds * 100);
return dest;
......
fs/udf/unicode.c
浏览文件 @ 4b11111a
......@@ -136,12 +136,18 @@ int udf_CS0toUTF8(struct ustr *utf_o, struct ustr *ocu_i)
if (c < 0x80U) {
utf_o->u_name[utf_o->u_len++] = (uint8_t)c;
} else if (c < 0x800U) {
utf_o->u_name[utf_o->u_len++] = (uint8_t)(0xc0 | (c >> 6));
utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | (c & 0x3f));
utf_o->u_name[utf_o->u_len++] =
(uint8_t)(0xc0 | (c >> 6));
utf_o->u_name[utf_o->u_len++] =
(uint8_t)(0x80 | (c & 0x3f));
} else {
utf_o->u_name[utf_o->u_len++] = (uint8_t)(0xe0 | (c >> 12));
utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | ((c >> 6) & 0x3f));
utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | (c & 0x3f));
utf_o->u_name[utf_o->u_len++] =
(uint8_t)(0xe0 | (c >> 12));
utf_o->u_name[utf_o->u_len++] =
(uint8_t)(0x80 |
((c >> 6) & 0x3f));
utf_o->u_name[utf_o->u_len++] =
(uint8_t)(0x80 | (c & 0x3f));
}
}
utf_o->u_cmpID = 8;
......@@ -232,9 +238,8 @@ static int udf_UTF8toCS0(dstring *ocu, struct ustr *utf, int length)
goto error_out;
}
if (max_val == 0xffffU) {
if (max_val == 0xffffU)
ocu[++u_len] = (uint8_t)(utf_char >> 8);
}
ocu[++u_len] = (uint8_t)(utf_char & 0xffU);
}
......@@ -330,29 +335,29 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
struct ustr filename, unifilename;
int len;
if (udf_build_ustr_exact(&unifilename, sname, flen)) {
if (udf_build_ustr_exact(&unifilename, sname, flen))
return 0;
}
if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
if (!udf_CS0toUTF8(&filename, &unifilename)) {
udf_debug("Failed in udf_get_filename: sname = %s\n", sname);
udf_debug("Failed in udf_get_filename: sname = %s\n",
sname);
return 0;
}
} else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {
if (!udf_CS0toNLS(UDF_SB(sb)->s_nls_map, &filename, &unifilename)) {
udf_debug("Failed in udf_get_filename: sname = %s\n", sname);
if (!udf_CS0toNLS(UDF_SB(sb)->s_nls_map, &filename,
&unifilename)) {
udf_debug("Failed in udf_get_filename: sname = %s\n",
sname);
return 0;
}
} else {
} else
return 0;
}
len = udf_translate_to_linux(dname, filename.u_name, filename.u_len,
unifilename.u_name, unifilename.u_len);
if (len) {
if (len)
return len;
}
return 0;
}
......@@ -363,23 +368,20 @@ int udf_put_filename(struct super_block *sb, const uint8_t *sname,
struct ustr unifilename;
int namelen;
if (!(udf_char_to_ustr(&unifilename, sname, flen))) {
if (!udf_char_to_ustr(&unifilename, sname, flen))
return 0;
}
if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
namelen = udf_UTF8toCS0(dname, &unifilename, UDF_NAME_LEN);
if (!namelen) {
if (!namelen)
return 0;
}
} else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {
namelen = udf_NLStoCS0(UDF_SB(sb)->s_nls_map, dname, &unifilename, UDF_NAME_LEN);
if (!namelen) {
namelen = udf_NLStoCS0(UDF_SB(sb)->s_nls_map, dname,
&unifilename, UDF_NAME_LEN);
if (!namelen)
return 0;
}
} else {
} else
return 0;
}
return namelen;
}
......@@ -389,8 +391,9 @@ int udf_put_filename(struct super_block *sb, const uint8_t *sname,
#define CRC_MARK '#'
#define EXT_SIZE 5
static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen,
uint8_t *fidName, int fidNameLen)
static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
int udfLen, uint8_t *fidName,
int fidNameLen)
{
int index, newIndex = 0, needsCRC = 0;
int extIndex = 0, newExtIndex = 0, hasExt = 0;
......@@ -409,13 +412,16 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen
if (curr == '/' || curr == 0) {
needsCRC = 1;
curr = ILLEGAL_CHAR_MARK;
while (index + 1 < udfLen && (udfName[index + 1] == '/' ||
udfName[index + 1] == 0))
while (index + 1 < udfLen &&
(udfName[index + 1] == '/' ||
udfName[index + 1] == 0))
index++;
} if (curr == EXT_MARK && (udfLen - index - 1) <= EXT_SIZE) {
if (udfLen == index + 1) {
}
if (curr == EXT_MARK &&
(udfLen - index - 1) <= EXT_SIZE) {
if (udfLen == index + 1)
hasExt = 0;
} else {
else {
hasExt = 1;
extIndex = index;
newExtIndex = newIndex;
......@@ -433,16 +439,18 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen
if (hasExt) {
int maxFilenameLen;
for(index = 0; index < EXT_SIZE && extIndex + index + 1 < udfLen; index++) {
for (index = 0;
index < EXT_SIZE && extIndex + index + 1 < udfLen;
index++) {
curr = udfName[extIndex + index + 1];
if (curr == '/' || curr == 0) {
needsCRC = 1;
curr = ILLEGAL_CHAR_MARK;
while(extIndex + index + 2 < udfLen &&
(index + 1 < EXT_SIZE
&& (udfName[extIndex + index + 2] == '/' ||
udfName[extIndex + index + 2] == 0)))
while (extIndex + index + 2 < udfLen &&
(index + 1 < EXT_SIZE &&
(udfName[extIndex + index + 2] == '/' ||
udfName[extIndex + index + 2] == 0)))
index++;
}
ext[localExtIndex++] = curr;
......@@ -452,9 +460,8 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen
newIndex = maxFilenameLen;
else
newIndex = newExtIndex;
} else if (newIndex > 250) {
} else if (newIndex > 250)
newIndex = 250;
}
newName[newIndex++] = CRC_MARK;
valueCRC = udf_crc(fidName, fidNameLen, 0);
newName[newIndex++] = hexChar[(valueCRC & 0xf000) >> 12];
......
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