Fix the following compile error when CONFIG_SECURITY is not set:

error: 'struct security_mnt_opts' has no member named 'num_mnt_opts'

Signed-off-by: Qu Wenruo <[email protected]>
---
This is the delta patch of the v2 patch.
---
 fs/btrfs/super.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 1eb7858..6f64411 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1248,6 +1248,7 @@ static int setup_security_options(struct btrfs_fs_info 
*fs_info,
        if (ret)
                return ret;
 
+#ifdef CONFIG_SECURITY
        if (!fs_info->security_opts.num_mnt_opts) {
                /* first time security setup, copy sec_opts to fs_info */
                memcpy(&fs_info->security_opts, sec_opts, sizeof(*sec_opts));
@@ -1260,6 +1261,7 @@ static int setup_security_options(struct btrfs_fs_info 
*fs_info,
                 */
                security_free_mnt_opts(sec_opts);
        }
+#endif
        return ret;
 }
 
-- 
1.8.3.1

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