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authorChristoph Hellwig <hch@lst.de>2020-09-03 07:40:58 +0200
committerJens Axboe <axboe@kernel.dk>2020-09-25 16:18:57 +0200
commit61a27e1f521ca0dd4a38302958ccc43fd95d8879 (patch)
tree326fa7a24b2155b4d4f59fcc4656b185ae3355f5
parentblock: add a bdev_is_partition helper (diff)
downloadlinux-61a27e1f521ca0dd4a38302958ccc43fd95d8879.tar.xz
linux-61a27e1f521ca0dd4a38302958ccc43fd95d8879.zip
md: compare bd_disk instead of bd_contains
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> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--drivers/md/md.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 64bc22d2b606..09ed6d0c7dbe 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),