md: fix a build warning

Warning like this:

drivers/md/md.c: In function "update_array_info":
drivers/md/md.c:6394:26: warning: logical not is only applied
to the left hand side of comparison [-Wlogical-not-parentheses]
      !mddev->persistent  != info->not_persistent||

Fix it as Neil Brown said:
mddev->persistent != !info->not_persistent ||

Signed-off-by: Firo Yang <firogm@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/drivers/md/md.c b/drivers/md/md.c
index b6bbcf0cc430e77b73d6b5e01eb33b444567fb15..3d339e283cf6a7010bf6eec6467fc2763f09cf70 100644 (file)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6394,7 +6394,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
            mddev->ctime         != info->ctime         ||
            mddev->level         != info->level         ||
 /*         mddev->layout        != info->layout        || */
-           !mddev->persistent   != info->not_persistent||
+           mddev->persistent    != !info->not_persistent ||
            mddev->chunk_sectors != info->chunk_size >> 9 ||
            /* ignore bottom 8 bits of state, and allow SB_BITMAP_PRESENT to change */
            ((state^info->state) & 0xfffffe00)