diff mbox series

[3/9] md: compare bd_disk instead of bd_contains

Message ID 20200903054104.228829-4-hch@lst.de
State New, archived
Headers show
Series [1/9] Documentation/hdio: fix up obscure bd_contains references | expand

Commit Message

Christoph Hellwig Sept. 3, 2020, 5:40 a.m. UTC
To check for partitions of the same disk bd_contains works as well, but
bd_disk is way more obvious.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/md/md.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

Comments

Song Liu Sept. 9, 2020, 12:55 a.m. UTC | #1
On Wed, Sep 2, 2020 at 10:43 PM Christoph Hellwig <hch@lst.de> wrote:
>
> To check for partitions of the same disk bd_contains works as well, but
> bd_disk is way more obvious.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: Song Liu <song@kernel.org>

> ---
>  drivers/md/md.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/md/md.c b/drivers/md/md.c
> index 9562ef598ae1f4..3f33562d10d6f5 100644
> --- a/drivers/md/md.c
> +++ b/drivers/md/md.c
> @@ -2322,8 +2322,7 @@ static int match_mddev_units(struct mddev *mddev1, struct mddev *mddev2)
>                             test_bit(Journal, &rdev2->flags) ||
>                             rdev2->raid_disk == -1)
>                                 continue;
> -                       if (rdev->bdev->bd_contains ==
> -                           rdev2->bdev->bd_contains) {
> +                       if (rdev->bdev->bd_disk == rdev2->bdev->bd_disk) {
>                                 rcu_read_unlock();
>                                 return 1;
>                         }
> @@ -5944,8 +5943,8 @@ int md_run(struct mddev *mddev)
>                 rdev_for_each(rdev, mddev)
>                         rdev_for_each(rdev2, mddev) {
>                                 if (rdev < rdev2 &&
> -                                   rdev->bdev->bd_contains ==
> -                                   rdev2->bdev->bd_contains) {
> +                                   rdev->bdev->bd_disk ==
> +                                   rdev2->bdev->bd_disk) {
>                                         pr_warn("%s: WARNING: %s appears to be on the same physical disk as %s.\n",
>                                                 mdname(mddev),
>                                                 bdevname(rdev->bdev,b),
> --
> 2.28.0
>
diff mbox series

Patch

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 9562ef598ae1f4..3f33562d10d6f5 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2322,8 +2322,7 @@  static int match_mddev_units(struct mddev *mddev1, struct mddev *mddev2)
 			    test_bit(Journal, &rdev2->flags) ||
 			    rdev2->raid_disk == -1)
 				continue;
-			if (rdev->bdev->bd_contains ==
-			    rdev2->bdev->bd_contains) {
+			if (rdev->bdev->bd_disk == rdev2->bdev->bd_disk) {
 				rcu_read_unlock();
 				return 1;
 			}
@@ -5944,8 +5943,8 @@  int md_run(struct mddev *mddev)
 		rdev_for_each(rdev, mddev)
 			rdev_for_each(rdev2, mddev) {
 				if (rdev < rdev2 &&
-				    rdev->bdev->bd_contains ==
-				    rdev2->bdev->bd_contains) {
+				    rdev->bdev->bd_disk ==
+				    rdev2->bdev->bd_disk) {
 					pr_warn("%s: WARNING: %s appears to be on the same physical disk as %s.\n",
 						mdname(mddev),
 						bdevname(rdev->bdev,b),