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| author | Mark Brown <broonie@kernel.org> | 2015-03-11 12:53:25 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-03-11 12:53:25 +0000 |
| commit | 11dd60447e3b1018f9cae66737cb902b519d3454 (patch) | |
| tree | a33d8bcb18a3becae2161aa215c25d5674626c57 /drivers/md/raid5.c | |
| parent | 8d0c38a3f2a6bb70e952f127ed817fc7a08db52c (diff) | |
| parent | 9eccca0843205f87c00404b663188b88eb248051 (diff) | |
| download | lwn-11dd60447e3b1018f9cae66737cb902b519d3454.tar.gz lwn-11dd60447e3b1018f9cae66737cb902b519d3454.zip | |
Merge tag 'v4.0-rc3' into asoc-intel
Linux 4.0-rc3
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index e75d48c0421a..cd2f96b2c572 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5121,12 +5121,17 @@ static inline sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int schedule_timeout_uninterruptible(1); } /* Need to check if array will still be degraded after recovery/resync - * We don't need to check the 'failed' flag as when that gets set, - * recovery aborts. + * Note in case of > 1 drive failures it's possible we're rebuilding + * one drive while leaving another faulty drive in array. */ - for (i = 0; i < conf->raid_disks; i++) - if (conf->disks[i].rdev == NULL) + rcu_read_lock(); + for (i = 0; i < conf->raid_disks; i++) { + struct md_rdev *rdev = ACCESS_ONCE(conf->disks[i].rdev); + + if (rdev == NULL || test_bit(Faulty, &rdev->flags)) still_degraded = 1; + } + rcu_read_unlock(); bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, still_degraded); |