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| author | Tao Ma <boyu.mt@taobao.com> | 2012-12-10 14:04:46 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2012-12-10 14:04:46 -0500 |
| commit | 67cf5b09a46f72e048501b84996f2f77bc42e947 (patch) | |
| tree | a03218e2d47fc2ea9875fbd245e5b7ec3985e25e /fs/ext4/inode.c | |
| parent | 879b38257bf2b6fa8406693a3b5b5a0649e7c594 (diff) | |
| download | linux-67cf5b09a46f72e048501b84996f2f77bc42e947.tar.gz linux-67cf5b09a46f72e048501b84996f2f77bc42e947.tar.bz2 linux-67cf5b09a46f72e048501b84996f2f77bc42e947.zip | |
ext4: add the basic function for inline data support
Implement inline data with xattr.
Now we use "system.data" to store xattr, and the xattr will
be extended if the i_size is increased while we don't release
the space during truncate.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/inode.c')
| -rw-r--r-- | fs/ext4/inode.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index befa005711a1..e23f114e2cfe 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3706,8 +3706,10 @@ static inline void ext4_iget_extra_inode(struct inode *inode, { __le32 *magic = (void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize; - if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC)) + if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC)) { ext4_set_inode_state(inode, EXT4_STATE_XATTR); + ext4_find_inline_data_nolock(inode); + } } struct inode *ext4_iget(struct super_block *sb, unsigned long ino) @@ -3780,6 +3782,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) set_nlink(inode, le16_to_cpu(raw_inode->i_links_count)); ext4_clear_state_flags(ei); /* Only relevant on 32-bit archs */ + ei->i_inline_off = 0; ei->i_dir_start_lookup = 0; ei->i_dtime = le32_to_cpu(raw_inode->i_dtime); /* We now have enough fields to check if the inode was active or not. |