From a7a3f7cadd9bdee569243f7ead9550aa16b60e07 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Sat, 7 Nov 2009 06:19:16 +0000 Subject: [PATCH] Btrfs: fail mount on bad mount options We shouldn't silently ignore unrecognized options. Signed-off-by: Sage Weil Signed-off-by: Chris Mason --- fs/btrfs/super.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 270cc96b9a4..193d920e54e 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -128,6 +128,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) substring_t args[MAX_OPT_ARGS]; char *p, *num; int intarg; + int ret = 0; if (!options) return 0; @@ -262,12 +263,18 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) case Opt_discard: btrfs_set_opt(info->mount_opt, DISCARD); break; + case Opt_err: + printk(KERN_INFO "btrfs: unrecognized mount option " + "'%s'\n", p); + ret = -EINVAL; + goto out; default: break; } } +out: kfree(options); - return 0; + return ret; } /*