Messages in this thread Patch in this message | | | Date | Sun, 23 Feb 2014 20:01:15 +0100 | From | Fabian Frederick <> | Subject | [PATCH 1/1] fs/ext4/inode.c: Add unlikely() to ext4_iget |
| |
Isolate no memory and bad inode cases in ext4_iget.
Signed-off-by: Fabian Frederick <fabf@skynet.be> --- fs/ext4/inode.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 6e39895..e11c30b9 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4009,7 +4009,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) gid_t i_gid; inode = iget_locked(sb, ino); - if (!inode) + if (unlikely(!inode)) return ERR_PTR(-ENOMEM); if (!(inode->i_state & I_NEW)) return inode; @@ -4018,14 +4018,14 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) iloc.bh = NULL; ret = __ext4_get_inode_loc(inode, &iloc, 0); - if (ret < 0) + if (unlikely(ret < 0)) goto bad_inode; raw_inode = ext4_raw_inode(&iloc); if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) { ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize); - if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize > - EXT4_INODE_SIZE(inode->i_sb)) { + if (unlikely(EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize > + EXT4_INODE_SIZE(inode->i_sb))) { EXT4_ERROR_INODE(inode, "bad extra_isize (%u != %u)", EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize, EXT4_INODE_SIZE(inode->i_sb)); @@ -4048,7 +4048,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) sizeof(gen)); } - if (!ext4_inode_csum_verify(inode, raw_inode, ei)) { + if (unlikely(!ext4_inode_csum_verify(inode, raw_inode, ei))) { EXT4_ERROR_INODE(inode, "checksum invalid"); ret = -EIO; goto bad_inode; -- 1.8.1.4
| |