diff options
| author | Yu Kuai <yukuai3@huawei.com> | 2024-10-31 06:31:13 +0300 |
|---|---|---|
| committer | Song Liu <song@kernel.org> | 2024-11-06 03:08:39 +0300 |
| commit | d419284c95d369f2b77f71fb20f2d61850aa61b8 (patch) | |
| tree | 97ebab8032e03b8a6ceed7d4c6009da8d79e1854 /drivers/md | |
| parent | ff31a7ef2b13aae27203d7fc29280ab0a2f8bf18 (diff) | |
| download | linux-d419284c95d369f2b77f71fb20f2d61850aa61b8.tar.xz | |
md/raid10: don't wait for Faulty rdev in wait_blocked_rdev()
Faulty rdev should never be accessed anymore, hence there is no point to
wait for bad block to be acknowledged in this case while handling write
request.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Tested-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
Link: https://lore.kernel.org/r/20241031033114.3845582-7-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid10.c | 40 |
1 files changed, 18 insertions, 22 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index f3bf1116794a..ff73db2f6c41 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1285,9 +1285,9 @@ static void raid10_write_one_disk(struct mddev *mddev, struct r10bio *r10_bio, static void wait_blocked_dev(struct mddev *mddev, struct r10bio *r10_bio) { - int i; struct r10conf *conf = mddev->private; struct md_rdev *blocked_rdev; + int i; retry_wait: blocked_rdev = NULL; @@ -1295,40 +1295,36 @@ retry_wait: struct md_rdev *rdev, *rrdev; rdev = conf->mirrors[i].rdev; - rrdev = conf->mirrors[i].replacement; - if (rdev && unlikely(test_bit(Blocked, &rdev->flags))) { - atomic_inc(&rdev->nr_pending); - blocked_rdev = rdev; - break; - } - if (rrdev && unlikely(test_bit(Blocked, &rrdev->flags))) { - atomic_inc(&rrdev->nr_pending); - blocked_rdev = rrdev; - break; - } - - if (rdev && test_bit(WriteErrorSeen, &rdev->flags)) { + if (rdev) { sector_t dev_sector = r10_bio->devs[i].addr; /* * Discard request doesn't care the write result * so it doesn't need to wait blocked disk here. */ - if (!r10_bio->sectors) - continue; - - if (rdev_has_badblock(rdev, dev_sector, - r10_bio->sectors) < 0) { + if (test_bit(WriteErrorSeen, &rdev->flags) && + r10_bio->sectors && + rdev_has_badblock(rdev, dev_sector, + r10_bio->sectors) < 0) /* - * Mustn't write here until the bad block - * is acknowledged + * Mustn't write here until the bad + * block is acknowledged */ - atomic_inc(&rdev->nr_pending); set_bit(BlockedBadBlocks, &rdev->flags); + + if (rdev_blocked(rdev)) { blocked_rdev = rdev; + atomic_inc(&rdev->nr_pending); break; } } + + rrdev = conf->mirrors[i].replacement; + if (rrdev && rdev_blocked(rrdev)) { + atomic_inc(&rrdev->nr_pending); + blocked_rdev = rrdev; + break; + } } if (unlikely(blocked_rdev)) { |