summary refs log tree commit diff
path: root/fs/quota
diff options
context:
space:
mode:
authorTrond Myklebust <Trond.Myklebust@netapp.com>2011-09-26 20:36:09 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-09-26 19:16:46 -0700
commit815d405ceff0d6964683f033e18b9b23a88fba87 (patch)
tree2bec24a44bc3edbdcedf8ae65256a0533ce4e46a /fs/quota
parentd94c177beeb4469cd4f6e83354ab0223353e98ed (diff)
downloadlinux-815d405ceff0d6964683f033e18b9b23a88fba87.tar.gz
VFS: Fix the remaining automounter semantics regressions
The concensus seems to be that system calls such as stat() etc should
not trigger an automount.  Neither should the l* versions.

This patch therefore adds a LOOKUP_AUTOMOUNT flag to tag those lookups
that _should_ trigger an automount on the last path element.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
[ Edited to leave out the cases that are already covered by LOOKUP_OPEN,
  LOOKUP_DIRECTORY and LOOKUP_CREATE - all of which also fundamentally
  force automounting for their own reasons   - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/quota')
-rw-r--r--fs/quota/quota.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index b34bdb25490c..10b6be3ca280 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -355,7 +355,7 @@ SYSCALL_DEFINE4(quotactl, unsigned int, cmd, const char __user *, special,
 	 * resolution (think about autofs) and thus deadlocks could arise.
 	 */
 	if (cmds == Q_QUOTAON) {
-		ret = user_path_at(AT_FDCWD, addr, LOOKUP_FOLLOW, &path);
+		ret = user_path_at(AT_FDCWD, addr, LOOKUP_FOLLOW|LOOKUP_AUTOMOUNT, &path);
 		if (ret)
 			pathp = ERR_PTR(ret);
 		else