From: Jeff Layton <jlayton@redhat.com>
Date: Fri, 5 Feb 2010 18:30:36 +0000 (-0500)
Subject: cifs: fix dentry hash calculation for case-insensitive mounts
X-Git-Tag: v2.6.33-rc8~33^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=05507fa2ac8d5e503bcf33ee43329449027d9060;p=platform%2Fkernel%2Flinux-3.10.git

cifs: fix dentry hash calculation for case-insensitive mounts

case-insensitive mounts shouldn't use full_name_hash(). Make sure we
use the parent dentry's d_hash routine when one is set.

Reported-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
---

diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index f5618f8..c343b14 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -77,6 +77,11 @@ cifs_readdir_lookup(struct dentry *parent, struct qstr *name,
 
 	cFYI(1, ("For %s", name->name));
 
+	if (parent->d_op && parent->d_op->d_hash)
+		parent->d_op->d_hash(parent, name);
+	else
+		name->hash = full_name_hash(name->name, name->len);
+
 	dentry = d_lookup(parent, name);
 	if (dentry) {
 		/* FIXME: check for inode number changes? */
@@ -671,8 +676,6 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst,
 		pqst->name = filename;
 		pqst->len = len;
 	}
-	pqst->hash = full_name_hash(pqst->name, pqst->len);
-/*	cFYI(1, ("filldir on %s",pqst->name));  */
 	return rc;
 }