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| author | Tao Ma <boyu.mt@taobao.com> | 2012-12-02 20:13:24 +0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2012-12-02 20:13:24 +0400 |
| commit | 152a7b0a808a00601328feba2001cbb2b530f771 (patch) | |
| tree | 1994854df5b26d74705b36d3dd3771c8e4b714ea /fs/ext4 | |
| parent | aeb1e5d69a5be592e86a926be73efb38c55af404 (diff) | |
| download | linux-152a7b0a808a00601328feba2001cbb2b530f771.tar.xz | |
ext4: move extra inode read to a new function
Currently, in ext4_iget we do a simple check to see whether
there does exist some information starting from the end
of i_extra_size. With inline data added, this procedure
is more complicated. So move it to a new function named
ext4_iget_extra_inode.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/inode.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 91a24967b8ae..befa005711a1 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3700,6 +3700,16 @@ static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode, } } +static inline void ext4_iget_extra_inode(struct inode *inode, + struct ext4_inode *raw_inode, + struct ext4_inode_info *ei) +{ + __le32 *magic = (void *)raw_inode + + EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize; + if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC)) + ext4_set_inode_state(inode, EXT4_STATE_XATTR); +} + struct inode *ext4_iget(struct super_block *sb, unsigned long ino) { struct ext4_iloc iloc; @@ -3842,11 +3852,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) ei->i_extra_isize = sizeof(struct ext4_inode) - EXT4_GOOD_OLD_INODE_SIZE; } else { - __le32 *magic = (void *)raw_inode + - EXT4_GOOD_OLD_INODE_SIZE + - ei->i_extra_isize; - if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC)) - ext4_set_inode_state(inode, EXT4_STATE_XATTR); + ext4_iget_extra_inode(inode, raw_inode, ei); } } |