提交 3313e292 编写于 作者: E Evgeniy Dushistov 提交者: Linus Torvalds

[PATCH] ufs2 write: inodes write

This patch adds into write inode path function to write UFS2 inode, and
modifys allocate inode path to allocate and init additional inode chunks.

Also some cleanups:
- remove not used parameters in some functions
- remove i_gen field from ufs_inode_info structure,
there is i_generation in inode structure with same purposes.
Signed-off-by: NEvgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 cbcae39f
......@@ -18,6 +18,9 @@
* Stephen Tweedie (sct@dcs.ed.ac.uk), 1993
* Big-endian to little-endian byte-swapping/bitmaps by
* David S. Miller (davem@caip.rutgers.edu), 1995
*
* UFS2 write support added by
* Evgeniy Dushistov <dushistov@mail.ru>, 2007
*/
#include <linux/fs.h>
......@@ -125,6 +128,47 @@ void ufs_free_inode (struct inode * inode)
UFSD("EXIT\n");
}
/*
* Nullify new chunk of inodes,
* BSD people also set ui_gen field of inode
* during nullification, but we not care about
* that because of linux ufs do not support NFS
*/
static void ufs2_init_inodes_chunk(struct super_block *sb,
struct ufs_cg_private_info *ucpi,
struct ufs_cylinder_group *ucg)
{
struct buffer_head *bh;
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
sector_t beg = uspi->s_sbbase +
ufs_inotofsba(ucpi->c_cgx * uspi->s_ipg +
fs32_to_cpu(sb, ucg->cg_u.cg_u2.cg_initediblk));
sector_t end = beg + uspi->s_fpb;
UFSD("ENTER cgno %d\n", ucpi->c_cgx);
for (; beg < end; ++beg) {
bh = sb_getblk(sb, beg);
lock_buffer(bh);
memset(bh->b_data, 0, sb->s_blocksize);
set_buffer_uptodate(bh);
mark_buffer_dirty(bh);
unlock_buffer(bh);
if (sb->s_flags & MS_SYNCHRONOUS)
sync_dirty_buffer(bh);
brelse(bh);
}
fs32_add(sb, &ucg->cg_u.cg_u2.cg_initediblk, uspi->s_inopb);
ubh_mark_buffer_dirty(UCPI_UBH(ucpi));
if (sb->s_flags & MS_SYNCHRONOUS) {
ubh_ll_rw_block(SWRITE, UCPI_UBH(ucpi));
ubh_wait_on_buffer(UCPI_UBH(ucpi));
}
UFSD("EXIT\n");
}
/*
* There are two policies for allocating an inode. If the new inode is
* a directory, then a forward search is made for a block group with both
......@@ -146,6 +190,7 @@ struct inode * ufs_new_inode(struct inode * dir, int mode)
struct inode * inode;
unsigned cg, bit, i, j, start;
struct ufs_inode_info *ufsi;
int err = -ENOSPC;
UFSD("ENTER\n");
......@@ -198,13 +243,15 @@ struct inode * ufs_new_inode(struct inode * dir, int mode)
goto cg_found;
}
}
goto failed;
cg_found:
ucpi = ufs_load_cylinder (sb, cg);
if (!ucpi)
if (!ucpi) {
err = -EIO;
goto failed;
}
ucg = ubh_get_ucg(UCPI_UBH(ucpi));
if (!ufs_cg_chkmagic(sb, ucg))
ufs_panic (sb, "ufs_new_inode", "internal error, bad cg magic number");
......@@ -216,6 +263,7 @@ struct inode * ufs_new_inode(struct inode * dir, int mode)
if (!(bit < start)) {
ufs_error (sb, "ufs_new_inode",
"cylinder group %u corrupted - error in inode bitmap\n", cg);
err = -EIO;
goto failed;
}
}
......@@ -224,9 +272,18 @@ struct inode * ufs_new_inode(struct inode * dir, int mode)
ubh_setbit (UCPI_UBH(ucpi), ucpi->c_iusedoff, bit);
else {
ufs_panic (sb, "ufs_new_inode", "internal error");
err = -EIO;
goto failed;
}
if (uspi->fs_magic == UFS2_MAGIC) {
u32 initediblk = fs32_to_cpu(sb, ucg->cg_u.cg_u2.cg_initediblk);
if (bit + uspi->s_inopb > initediblk &&
initediblk < fs32_to_cpu(sb, ucg->cg_u.cg_u2.cg_niblk))
ufs2_init_inodes_chunk(sb, ucpi, ucg);
}
fs32_sub(sb, &ucg->cg_cs.cs_nifree, 1);
uspi->cs_total.cs_nifree--;
fs32_sub(sb, &sbi->fs_cs(cg).cs_nifree, 1);
......@@ -236,7 +293,6 @@ struct inode * ufs_new_inode(struct inode * dir, int mode)
uspi->cs_total.cs_ndir++;
fs32_add(sb, &sbi->fs_cs(cg).cs_ndir, 1);
}
ubh_mark_buffer_dirty (USPI_UBH(uspi));
ubh_mark_buffer_dirty (UCPI_UBH(ucpi));
if (sb->s_flags & MS_SYNCHRONOUS) {
......@@ -245,6 +301,7 @@ struct inode * ufs_new_inode(struct inode * dir, int mode)
}
sb->s_dirt = 1;
inode->i_ino = cg * uspi->s_ipg + bit;
inode->i_mode = mode;
inode->i_uid = current->fsuid;
if (dir->i_mode & S_ISGID) {
......@@ -254,39 +311,72 @@ struct inode * ufs_new_inode(struct inode * dir, int mode)
} else
inode->i_gid = current->fsgid;
inode->i_ino = cg * uspi->s_ipg + bit;
inode->i_blocks = 0;
inode->i_generation = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
ufsi->i_flags = UFS_I(dir)->i_flags;
ufsi->i_lastfrag = 0;
ufsi->i_gen = 0;
ufsi->i_shadow = 0;
ufsi->i_osync = 0;
ufsi->i_oeftflag = 0;
ufsi->i_dir_start_lookup = 0;
memset(&ufsi->i_u1, 0, sizeof(ufsi->i_u1));
insert_inode_hash(inode);
mark_inode_dirty(inode);
if (uspi->fs_magic == UFS2_MAGIC) {
struct buffer_head *bh;
struct ufs2_inode *ufs2_inode;
/*
* setup birth date, we do it here because of there is no sense
* to hold it in struct ufs_inode_info, and lose 64 bit
*/
bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
if (!bh) {
ufs_warning(sb, "ufs_read_inode",
"unable to read inode %lu\n",
inode->i_ino);
err = -EIO;
goto fail_remove_inode;
}
lock_buffer(bh);
ufs2_inode = (struct ufs2_inode *)bh->b_data;
ufs2_inode += ufs_inotofsbo(inode->i_ino);
ufs2_inode->ui_birthtime.tv_sec =
cpu_to_fs32(sb, CURRENT_TIME_SEC.tv_sec);
ufs2_inode->ui_birthtime.tv_usec = 0;
mark_buffer_dirty(bh);
unlock_buffer(bh);
if (sb->s_flags & MS_SYNCHRONOUS)
sync_dirty_buffer(bh);
brelse(bh);
}
unlock_super (sb);
if (DQUOT_ALLOC_INODE(inode)) {
DQUOT_DROP(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
return ERR_PTR(-EDQUOT);
err = -EDQUOT;
goto fail_without_unlock;
}
UFSD("allocating inode %lu\n", inode->i_ino);
UFSD("EXIT\n");
return inode;
fail_remove_inode:
unlock_super(sb);
fail_without_unlock:
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
UFSD("EXIT (FAILED): err %d\n", err);
return ERR_PTR(err);
failed:
unlock_super (sb);
make_bad_inode(inode);
iput (inode);
UFSD("EXIT (FAILED)\n");
return ERR_PTR(-ENOSPC);
UFSD("EXIT (FAILED): err %d\n", err);
return ERR_PTR(err);
}
......@@ -616,8 +616,8 @@ static void ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
inode->i_atime.tv_nsec = 0;
inode->i_ctime.tv_nsec = 0;
inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);
inode->i_generation = fs32_to_cpu(sb, ufs_inode->ui_gen);
ufsi->i_flags = fs32_to_cpu(sb, ufs_inode->ui_flags);
ufsi->i_gen = fs32_to_cpu(sb, ufs_inode->ui_gen);
ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
......@@ -661,8 +661,8 @@ static void ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
inode->i_atime.tv_nsec = 0;
inode->i_ctime.tv_nsec = 0;
inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks);
inode->i_generation = fs32_to_cpu(sb, ufs2_inode->ui_gen);
ufsi->i_flags = fs32_to_cpu(sb, ufs2_inode->ui_flags);
ufsi->i_gen = fs32_to_cpu(sb, ufs2_inode->ui_gen);
/*
ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
......@@ -731,34 +731,11 @@ void ufs_read_inode(struct inode * inode)
make_bad_inode(inode);
}
static int ufs_update_inode(struct inode * inode, int do_sync)
static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)
{
struct ufs_inode_info *ufsi = UFS_I(inode);
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct buffer_head * bh;
struct ufs_inode * ufs_inode;
unsigned i;
unsigned flags;
UFSD("ENTER, ino %lu\n", inode->i_ino);
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
flags = UFS_SB(sb)->s_flags;
if (inode->i_ino < UFS_ROOTINO ||
inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
return -1;
}
bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));
if (!bh) {
ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
return -1;
}
ufs_inode = (struct ufs_inode *) (bh->b_data + ufs_inotofsbo(inode->i_ino) * sizeof(struct ufs_inode));
struct super_block *sb = inode->i_sb;
struct ufs_inode_info *ufsi = UFS_I(inode);
unsigned i;
ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
......@@ -775,9 +752,9 @@ static int ufs_update_inode(struct inode * inode, int do_sync)
ufs_inode->ui_mtime.tv_usec = 0;
ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);
ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
ufs_inode->ui_gen = cpu_to_fs32(sb, ufsi->i_gen);
ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);
if ((flags & UFS_UID_MASK) == UFS_UID_EFT) {
if ((UFS_SB(sb)->s_flags & UFS_UID_MASK) == UFS_UID_EFT) {
ufs_inode->ui_u3.ui_sun.ui_shadow = cpu_to_fs32(sb, ufsi->i_shadow);
ufs_inode->ui_u3.ui_sun.ui_oeftflag = cpu_to_fs32(sb, ufsi->i_oeftflag);
}
......@@ -796,6 +773,78 @@ static int ufs_update_inode(struct inode * inode, int do_sync)
if (!inode->i_nlink)
memset (ufs_inode, 0, sizeof(struct ufs_inode));
}
static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)
{
struct super_block *sb = inode->i_sb;
struct ufs_inode_info *ufsi = UFS_I(inode);
unsigned i;
UFSD("ENTER\n");
ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
ufs_inode->ui_uid = cpu_to_fs32(sb, inode->i_uid);
ufs_inode->ui_gid = cpu_to_fs32(sb, inode->i_gid);
ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime.tv_sec);
ufs_inode->ui_atime.tv_usec = 0;
ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb, inode->i_ctime.tv_sec);
ufs_inode->ui_ctime.tv_usec = 0;
ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb, inode->i_mtime.tv_sec);
ufs_inode->ui_mtime.tv_usec = 0;
ufs_inode->ui_blocks = cpu_to_fs64(sb, inode->i_blocks);
ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);
if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
/* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.u2_i_data[0];
} else if (inode->i_blocks) {
for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
ufs_inode->ui_u2.ui_addr.ui_db[i] = ufsi->i_u1.u2_i_data[i];
} else {
for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
ufs_inode->ui_u2.ui_symlink[i] = ufsi->i_u1.i_symlink[i];
}
if (!inode->i_nlink)
memset (ufs_inode, 0, sizeof(struct ufs2_inode));
UFSD("EXIT\n");
}
static int ufs_update_inode(struct inode * inode, int do_sync)
{
struct super_block *sb = inode->i_sb;
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
struct buffer_head * bh;
UFSD("ENTER, ino %lu\n", inode->i_ino);
if (inode->i_ino < UFS_ROOTINO ||
inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
return -1;
}
bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));
if (!bh) {
ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
return -1;
}
if (uspi->fs_magic == UFS2_MAGIC) {
struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
ufs2_update_inode(inode,
ufs2_inode + ufs_inotofsbo(inode->i_ino));
} else {
struct ufs_inode *ufs_inode = (struct ufs_inode *) bh->b_data;
ufs1_update_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino));
}
mark_buffer_dirty(bh);
if (do_sync)
......
......@@ -95,14 +95,16 @@
/*
* Print contents of ufs_super_block, useful for debugging
*/
static void ufs_print_super_stuff(struct super_block *sb, unsigned flags,
static void ufs_print_super_stuff(struct super_block *sb,
struct ufs_super_block_first *usb1,
struct ufs_super_block_second *usb2,
struct ufs_super_block_third *usb3)
{
u32 magic = fs32_to_cpu(sb, usb3->fs_magic);
printk("ufs_print_super_stuff\n");
printk(" magic: 0x%x\n", fs32_to_cpu(sb, usb3->fs_magic));
if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
printk(" magic: 0x%x\n", magic);
if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) {
printk(" fs_size: %llu\n", (unsigned long long)
fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size));
printk(" fs_dsize: %llu\n", (unsigned long long)
......@@ -119,6 +121,12 @@ static void ufs_print_super_stuff(struct super_block *sb, unsigned flags,
printk(" cs_nbfree(No of free blocks): %llu\n",
(unsigned long long)
fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree));
printk(KERN_INFO" cs_nifree(Num of free inodes): %llu\n",
(unsigned long long)
fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree));
printk(KERN_INFO" cs_nffree(Num of free frags): %llu\n",
(unsigned long long)
fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree));
} else {
printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno));
printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno));
......@@ -201,7 +209,7 @@ static void ufs_print_cylinder_stuff(struct super_block *sb,
printk("\n");
}
#else
# define ufs_print_super_stuff(sb, flags, usb1, usb2, usb3) /**/
# define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/
# define ufs_print_cylinder_stuff(sb, cg) /**/
#endif /* CONFIG_UFS_DEBUG */
......@@ -424,7 +432,6 @@ static int ufs_read_cylinder_structures(struct super_block *sb)
{
struct ufs_sb_info *sbi = UFS_SB(sb);
struct ufs_sb_private_info *uspi = sbi->s_uspi;
unsigned flags = sbi->s_flags;
struct ufs_buffer_head * ubh;
unsigned char * base, * space;
unsigned size, blks, i;
......@@ -448,11 +455,7 @@ static int ufs_read_cylinder_structures(struct super_block *sb)
if (i + uspi->s_fpb > blks)
size = (blks - i) * uspi->s_fsize;
if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
ubh = ubh_bread(sb,
fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr) + i, size);
else
ubh = ubh_bread(sb, uspi->s_csaddr + i, size);
ubh = ubh_bread(sb, uspi->s_csaddr + i, size);
if (!ubh)
goto failed;
......@@ -547,6 +550,7 @@ static void ufs_put_cstotal(struct super_block *sb)
cpu_to_fs32(sb, uspi->cs_total.cs_nffree);
}
ubh_mark_buffer_dirty(USPI_UBH(uspi));
ufs_print_super_stuff(sb, usb1, usb2, usb3);
UFSD("EXIT\n");
}
......@@ -574,7 +578,9 @@ static void ufs_put_super_internal(struct super_block *sb)
size = uspi->s_bsize;
if (i + uspi->s_fpb > blks)
size = (blks - i) * uspi->s_fsize;
ubh = ubh_bread(sb, uspi->s_csaddr + i, size);
ubh_memcpyubh (ubh, space, size);
space += size;
ubh_mark_buffer_uptodate (ubh, 1);
......@@ -888,7 +894,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
}
ufs_print_super_stuff(sb, flags, usb1, usb2, usb3);
ufs_print_super_stuff(sb, usb1, usb2, usb3);
/*
* Check, if file system was correctly unmounted.
......@@ -971,7 +977,12 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
uspi->s_npsect = ufs_get_fs_npsect(sb, usb1, usb3);
uspi->s_interleave = fs32_to_cpu(sb, usb1->fs_interleave);
uspi->s_trackskew = fs32_to_cpu(sb, usb1->fs_trackskew);
uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr);
if (uspi->fs_magic == UFS2_MAGIC)
uspi->s_csaddr = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr);
else
uspi->s_csaddr = fs32_to_cpu(sb, usb1->fs_csaddr);
uspi->s_cssize = fs32_to_cpu(sb, usb1->fs_cssize);
uspi->s_cgsize = fs32_to_cpu(sb, usb1->fs_cgsize);
uspi->s_ntrak = fs32_to_cpu(sb, usb1->fs_ntrak);
......@@ -1058,7 +1069,6 @@ static void ufs_write_super(struct super_block *sb)
unsigned flags;
lock_kernel();
UFSD("ENTER\n");
flags = UFS_SB(sb)->s_flags;
uspi = UFS_SB(sb)->s_uspi;
......
......@@ -263,7 +263,7 @@ typedef __u16 __bitwise __fs16;
*/
#define ufs_inotocg(x) ((x) / uspi->s_ipg)
#define ufs_inotocgoff(x) ((x) % uspi->s_ipg)
#define ufs_inotofsba(x) (ufs_cgimin(ufs_inotocg(x)) + ufs_inotocgoff(x) / uspi->s_inopf)
#define ufs_inotofsba(x) (((u64)ufs_cgimin(ufs_inotocg(x))) + ufs_inotocgoff(x) / uspi->s_inopf)
#define ufs_inotofsbo(x) ((x) % uspi->s_inopf)
/*
......@@ -756,7 +756,7 @@ struct ufs_sb_private_info {
__u32 s_npsect; /* # sectors/track including spares */
__u32 s_interleave; /* hardware sector interleave */
__u32 s_trackskew; /* sector 0 skew, per track */
__u32 s_csaddr; /* blk addr of cyl grp summary area */
__u64 s_csaddr; /* blk addr of cyl grp summary area */
__u32 s_cssize; /* size of cyl grp summary area */
__u32 s_cgsize; /* cylinder group size */
__u32 s_ntrak; /* tracks per cylinder */
......
......@@ -20,7 +20,6 @@ struct ufs_inode_info {
__fs64 u2_i_data[15];
} i_u1;
__u32 i_flags;
__u32 i_gen;
__u32 i_shadow;
__u32 i_unused1;
__u32 i_unused2;
......
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