---

yaml --- r: 356625 b: refs/heads/master c: 5f00110 h: refs/heads/master i: 356623: 0347360 v: v3
git-mirror · Feb 24, 2013 · ea26545 · ea26545
1 parent 63836dc
commit ea26545
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Showing 2 changed files with 9 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 67d46b296a1ba1477c0df8ff3bc5e0167a0b0732
+refs/heads/master: 5f00110f7273f9ff04ac69a5f85bb535a4fd0987
diff --git a/trunk/mm/shmem.c b/trunk/mm/shmem.c
@@ -2486,6 +2486,7 @@ static int shmem_remount_fs(struct super_block *sb, int *flags, char *data)
 	unsigned long inodes;
 	int error = -EINVAL;
 
+	config.mpol = NULL;
 	if (shmem_parse_options(data, &config, true))
 		return error;
 
@@ -2510,8 +2511,13 @@ static int shmem_remount_fs(struct super_block *sb, int *flags, char *data)
 	sbinfo->max_inodes  = config.max_inodes;
 	sbinfo->free_inodes = config.max_inodes - inodes;
 
-	mpol_put(sbinfo->mpol);
-	sbinfo->mpol        = config.mpol;	/* transfers initial ref */
+	/*
+	 * Preserve previous mempolicy unless mpol remount option was specified.
+	 */
+	if (config.mpol) {
+		mpol_put(sbinfo->mpol);
+		sbinfo->mpol = config.mpol;	/* transfers initial ref */
+	}
 out:
 	spin_unlock(&sbinfo->stat_lock);
 	return error;