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vfs: dentry_unhash immediately prior to rmdir

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This presumes that there is no reason to unhash a dentry if we fail because
it is a mountpoint or the LSM check fails, and that the LSM checks do not
depend on the dentry being unhashed.

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 2011-05-24 13:06:04 -07:00 committed by Al Viro
parent ea13a86463
commit 48293699a0
1 changed files with 2 additions and 2 deletions
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4
fs/namei.c
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@ -2564,24 +2564,24 @@ int vfs_rmdir(struct inode *dir, struct dentry *dentry)
return -EPERM;
mutex_lock(&dentry->d_inode->i_mutex);
dentry_unhash(dentry);
if (d_mountpoint(dentry))
error = -EBUSY;
else {
error = security_inode_rmdir(dir, dentry);
if (!error) {
dentry_unhash(dentry);
error = dir->i_op->rmdir(dir, dentry);
if (!error) {
dentry->d_inode->i_flags |= S_DEAD;
dont_mount(dentry);
}
dput(dentry);
}
}
mutex_unlock(&dentry->d_inode->i_mutex);
if (!error) {
d_delete(dentry);
}
dput(dentry);
return error;
}