From: Nick Piggin <npiggin@kernel.dk>
Date: Tue, 17 Aug 2010 18:37:32 +0000 (+1000)
Subject: apparmor: use task path helpers
X-Git-Tag: v2.6.36-rc2~38^2~7
X-Git-Url: http://bbs.cooldavid.org/git/?p=net-next-2.6.git;a=commitdiff_plain;h=44672e4fbd40e2dda8bbce7d0f71d24dbfc7e00e

apparmor: use task path helpers

apparmor: use task path helpers

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/security/apparmor/path.c b/security/apparmor/path.c
index 96bab9469d4..19358dc1460 100644
--- a/security/apparmor/path.c
+++ b/security/apparmor/path.c
@@ -62,19 +62,14 @@ static int d_namespace_path(struct path *path, char *buf, int buflen,
 	int deleted, connected;
 	int error = 0;
 
-	/* Get the root we want to resolve too */
+	/* Get the root we want to resolve too, released below */
 	if (flags & PATH_CHROOT_REL) {
 		/* resolve paths relative to chroot */
-		read_lock(&current->fs->lock);
-		root = current->fs->root;
-		/* released below */
-		path_get(&root);
-		read_unlock(&current->fs->lock);
+		get_fs_root(current->fs, &root);
 	} else {
 		/* resolve paths relative to namespace */
 		root.mnt = current->nsproxy->mnt_ns->root;
 		root.dentry = root.mnt->mnt_root;
-		/* released below */
 		path_get(&root);
 	}