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| author | Al Viro <viro@zeniv.linux.org.uk> | 2013-11-06 09:54:52 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-11-09 00:16:31 -0500 |
| commit | 5a3cd99285dc793a4022fa75ceeb323eb6d29ac9 (patch) | |
| tree | 84d6be981f67655016a62febd87f89bec53c89b3 /fs/inode.c | |
| parent | b18825a7c8e37a7cf6abb97a12a6ad71af160de7 (diff) | |
| download | lwn-5a3cd99285dc793a4022fa75ceeb323eb6d29ac9.tar.gz lwn-5a3cd99285dc793a4022fa75ceeb323eb6d29ac9.zip | |
iget/iget5: don't bother with ->i_lock until we find a match
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/inode.c')
| -rw-r--r-- | fs/inode.c | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/fs/inode.c b/fs/inode.c index b33ba8e021cc..bf7a8b3ab937 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -773,15 +773,11 @@ static struct inode *find_inode(struct super_block *sb, repeat: hlist_for_each_entry(inode, head, i_hash) { - spin_lock(&inode->i_lock); - if (inode->i_sb != sb) { - spin_unlock(&inode->i_lock); + if (inode->i_sb != sb) continue; - } - if (!test(inode, data)) { - spin_unlock(&inode->i_lock); + if (!test(inode, data)) continue; - } + spin_lock(&inode->i_lock); if (inode->i_state & (I_FREEING|I_WILL_FREE)) { __wait_on_freeing_inode(inode); goto repeat; @@ -804,15 +800,11 @@ static struct inode *find_inode_fast(struct super_block *sb, repeat: hlist_for_each_entry(inode, head, i_hash) { - spin_lock(&inode->i_lock); - if (inode->i_ino != ino) { - spin_unlock(&inode->i_lock); + if (inode->i_ino != ino) continue; - } - if (inode->i_sb != sb) { - spin_unlock(&inode->i_lock); + if (inode->i_sb != sb) continue; - } + spin_lock(&inode->i_lock); if (inode->i_state & (I_FREEING|I_WILL_FREE)) { __wait_on_freeing_inode(inode); goto repeat; |