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new helper: inode_unhashed()

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note: for race-free uses you inode_lock held

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2010-10-23 15:19:20 -04:00
parent a8dade34e3
commit 1d3382cbf0
6 changed files with 13 additions and 8 deletions
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6
fs/inode.c
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@ -1094,7 +1094,7 @@ int insert_inode_locked(struct inode *inode)
__iget(old);
spin_unlock(&inode_lock);
wait_on_inode(old);
if (unlikely(!hlist_unhashed(&old->i_hash))) {
if (unlikely(!inode_unhashed(old))) {
iput(old);
return -EBUSY;
}
@ -1133,7 +1133,7 @@ int insert_inode_locked4(struct inode *inode, unsigned long hashval,
__iget(old);
spin_unlock(&inode_lock);
wait_on_inode(old);
if (unlikely(!hlist_unhashed(&old->i_hash))) {
if (unlikely(!inode_unhashed(old))) {
iput(old);
return -EBUSY;
}
@ -1186,7 +1186,7 @@ EXPORT_SYMBOL(generic_delete_inode);
*/
int generic_drop_inode(struct inode *inode)
{
return !inode->i_nlink || hlist_unhashed(&inode->i_hash);
return !inode->i_nlink || inode_unhashed(inode);
}
EXPORT_SYMBOL_GPL(generic_drop_inode);