提交 99e6f829 编写于 作者: A Aneesh Kumar K.V 提交者: Theodore Ts'o

ext4: Introduce ext4_update_*_feature

Introduce ext4_update_*_feature and use them instead
of opencoding.
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
上级 2aa9fc4c
......@@ -748,13 +748,10 @@ struct inode *ext4_new_inode(handle_t *handle, struct inode * dir, int mode)
if (test_opt(sb, EXTENTS)) {
EXT4_I(inode)->i_flags |= EXT4_EXTENTS_FL;
ext4_ext_tree_init(handle, inode);
if (!EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_EXTENTS)) {
err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);
if (err) goto fail;
EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_EXTENTS);
BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "call ext4_journal_dirty_metadata");
err = ext4_journal_dirty_metadata(handle, EXT4_SB(sb)->s_sbh);
}
err = ext4_update_incompat_feature(handle, sb,
EXT4_FEATURE_INCOMPAT_EXTENTS);
if (err)
goto fail;
}
ext4_debug("allocating inode %lu\n", inode->i_ino);
......
......@@ -373,6 +373,66 @@ void ext4_update_dynamic_rev(struct super_block *sb)
*/
}
int ext4_update_compat_feature(handle_t *handle,
struct super_block *sb, __u32 compat)
{
int err = 0;
if (!EXT4_HAS_COMPAT_FEATURE(sb, compat)) {
err = ext4_journal_get_write_access(handle,
EXT4_SB(sb)->s_sbh);
if (err)
return err;
EXT4_SET_COMPAT_FEATURE(sb, compat);
sb->s_dirt = 1;
handle->h_sync = 1;
BUFFER_TRACE(EXT4_SB(sb)->s_sbh,
"call ext4_journal_dirty_met adata");
err = ext4_journal_dirty_metadata(handle,
EXT4_SB(sb)->s_sbh);
}
return err;
}
int ext4_update_rocompat_feature(handle_t *handle,
struct super_block *sb, __u32 rocompat)
{
int err = 0;
if (!EXT4_HAS_RO_COMPAT_FEATURE(sb, rocompat)) {
err = ext4_journal_get_write_access(handle,
EXT4_SB(sb)->s_sbh);
if (err)
return err;
EXT4_SET_RO_COMPAT_FEATURE(sb, rocompat);
sb->s_dirt = 1;
handle->h_sync = 1;
BUFFER_TRACE(EXT4_SB(sb)->s_sbh,
"call ext4_journal_dirty_met adata");
err = ext4_journal_dirty_metadata(handle,
EXT4_SB(sb)->s_sbh);
}
return err;
}
int ext4_update_incompat_feature(handle_t *handle,
struct super_block *sb, __u32 incompat)
{
int err = 0;
if (!EXT4_HAS_INCOMPAT_FEATURE(sb, incompat)) {
err = ext4_journal_get_write_access(handle,
EXT4_SB(sb)->s_sbh);
if (err)
return err;
EXT4_SET_INCOMPAT_FEATURE(sb, incompat);
sb->s_dirt = 1;
handle->h_sync = 1;
BUFFER_TRACE(EXT4_SB(sb)->s_sbh,
"call ext4_journal_dirty_met adata");
err = ext4_journal_dirty_metadata(handle,
EXT4_SB(sb)->s_sbh);
}
return err;
}
/*
* Open the external journal device
*/
......
......@@ -989,6 +989,12 @@ extern void ext4_abort (struct super_block *, const char *, const char *, ...)
extern void ext4_warning (struct super_block *, const char *, const char *, ...)
__attribute__ ((format (printf, 3, 4)));
extern void ext4_update_dynamic_rev (struct super_block *sb);
extern int ext4_update_compat_feature(handle_t *handle, struct super_block *sb,
__u32 compat);
extern int ext4_update_rocompat_feature(handle_t *handle,
struct super_block *sb, __u32 rocompat);
extern int ext4_update_incompat_feature(handle_t *handle,
struct super_block *sb, __u32 incompat);
extern ext4_fsblk_t ext4_block_bitmap(struct super_block *sb,
struct ext4_group_desc *bg);
extern ext4_fsblk_t ext4_inode_bitmap(struct super_block *sb,
......
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