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ncpfs: document dentry_unhash usage 

ncpfs returns EBUSY if there are any references to the directory.  The
dentry_unhash call only unhashes the dentry if there are no references.

CC: Petr Vandrovec <petr@vandrovec.name>
CC: linux-kernel@vger.kernel.org
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Sage Weil 2011-05-27 13:42:09 -07:00 committed by Al Viro
parent 55e5b7e022
commit 7ce605d93b
1 changed files with 4 additions and 1 deletions
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5
fs/ncpfs/dir.c
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@ -1033,8 +1033,11 @@ static int ncp_rmdir(struct inode *dir, struct dentry *dentry)
DPRINTK("ncp_rmdir: removing %s/%s\n", DPRINTK("ncp_rmdir: removing %s/%s\n",
dentry->d_parent->d_name.name, dentry->d_name.name); dentry->d_parent->d_name.name, dentry->d_name.name);
/*
* fail with EBUSY if there are still references to this
* directory.
*/
dentry_unhash(dentry); dentry_unhash(dentry);
error = -EBUSY; error = -EBUSY;
if (!d_unhashed(dentry)) if (!d_unhashed(dentry))
goto out; goto out;