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authorChristoph Hellwig <hch@lst.de>2005-06-23 00:09:16 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-23 09:45:20 -0700
commit2fa389c5eb8c97d621653184d2adf5fdbd4a3167 (patch)
treea958e6ab570003e81b91df986492ca60fd247006 /fs/dquot.c
parent84de856ed30c568c2bb7b9ac0679772bd2737d9b (diff)
downloadlinux-2fa389c5eb8c97d621653184d2adf5fdbd4a3167.tar.gz
[PATCH] quota: sanitize dentry handling in vfs_quota_on_mount
Use lookup_one_len instead of opencoding a simplified lookup using
lookup_hash with a fake hash.

Also there's no need anymore for the d_invalidate as we have a completely
valid dentry now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/dquot.c')
-rw-r--r--fs/dquot.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/fs/dquot.c b/fs/dquot.c
index 343c03655619..37212b039a4a 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -1522,11 +1522,10 @@ out_path:
 int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
 		int format_id, int type)
 {
-	struct qstr name = {.name = qf_name, .len = 0, .len = strlen(qf_name)};
 	struct dentry *dentry;
 	int error;
 
-	dentry = lookup_hash(&name, sb->s_root);
+	dentry = lookup_one_len(qf_name, sb->s_root, strlen(qf_name));
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
 
@@ -1534,12 +1533,6 @@ int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
 	if (!error)
 		error = vfs_quota_on_inode(dentry->d_inode, type, format_id);
 
-	/*
-	 * Now invalidate and put the dentry - quota got its own reference
-	 * to inode and dentry has at least wrong hash so we had better
-	 * throw it away.
-	 */
-	d_invalidate(dentry);
 	dput(dentry);
 	return error;
 }