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iget/iget5: don't bother with ->i_lock until we find a match

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2013-11-06 09:54:52 -05:00
parent b18825a7c8
commit 5a3cd99285
4 changed files with 18 additions and 18 deletions
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24
fs/inode.c
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@ -773,15 +773,11 @@ static struct inode *find_inode(struct super_block *sb,
repeat:
hlist_for_each_entry(inode, head, i_hash) {
if (inode->i_sb != sb)
continue;
if (!test(inode, data))
continue;
spin_lock(&inode->i_lock);
if (inode->i_sb != sb) {
spin_unlock(&inode->i_lock);
continue;
}
if (!test(inode, data)) {
spin_unlock(&inode->i_lock);
continue;
}
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) {
if (inode->i_ino != ino)
continue;
if (inode->i_sb != sb)
continue;
spin_lock(&inode->i_lock);
if (inode->i_ino != ino) {
spin_unlock(&inode->i_lock);
continue;
}
if (inode->i_sb != sb) {
spin_unlock(&inode->i_lock);
continue;
}
if (inode->i_state & (I_FREEING|I_WILL_FREE)) {
__wait_on_freeing_inode(inode);
goto repeat;