diff options
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 6b9fc58e8f2..94bc35ba4c8 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3594,6 +3594,7 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio) int dd_idx; struct bio* align_bi; struct md_rdev *rdev; + sector_t end_sector; if (!in_chunk_boundary(mddev, raid_bio)) { pr_debug("chunk_aligned_read : non aligned\n"); @@ -3618,9 +3619,19 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio) 0, &dd_idx, NULL); + end_sector = align_bi->bi_sector + (align_bi->bi_size >> 9); rcu_read_lock(); - rdev = rcu_dereference(conf->disks[dd_idx].rdev); - if (rdev && test_bit(In_sync, &rdev->flags)) { + rdev = rcu_dereference(conf->disks[dd_idx].replacement); + if (!rdev || test_bit(Faulty, &rdev->flags) || + rdev->recovery_offset < end_sector) { + rdev = rcu_dereference(conf->disks[dd_idx].rdev); + if (rdev && + (test_bit(Faulty, &rdev->flags) || + !(test_bit(In_sync, &rdev->flags) || + rdev->recovery_offset >= end_sector))) + rdev = NULL; + } + if (rdev) { sector_t first_bad; int bad_sectors; |