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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-11 18:51:55 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-11 18:51:55 -0800 |
| commit | c086ae4ed94f9a1d283318e006813268c2dbf9fc (patch) | |
| tree | dbabbb09ddafcb818f32af038831419702574917 /drivers/md | |
| parent | 7b67e751479d50b7f84d1a3cc5216eed5e534b66 (diff) | |
| parent | 307729c8bc5b5a41361af8af95906eee7552acb1 (diff) | |
| download | op-kernel-dev-c086ae4ed94f9a1d283318e006813268c2dbf9fc.zip op-kernel-dev-c086ae4ed94f9a1d283318e006813268c2dbf9fc.tar.gz | |
Merge tag 'md-3.3-fixes' of git://neil.brown.name/md
Two bugfixes for md.
One is a recently introduced regression that affects an unusual
configuration with a guaranteed BUG_ON. Has been tagged for -stable.
The other is minor missing functionality.
* tag 'md-3.3-fixes' of git://neil.brown.name/md:
md/raid1: perform bad-block tests for WriteMostly devices too.
md: notify the 'degraded' sysfs attribute on failure.
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/md.c | 6 | ||||
| -rw-r--r-- | drivers/md/raid1.c | 11 |
2 files changed, 16 insertions, 1 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index ca8527f..da52acb 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7382,6 +7382,7 @@ static int remove_and_add_spares(struct mddev *mddev) { struct md_rdev *rdev; int spares = 0; + int removed = 0; mddev->curr_resync_completed = 0; @@ -7395,8 +7396,13 @@ static int remove_and_add_spares(struct mddev *mddev) mddev, rdev) == 0) { sysfs_unlink_rdev(mddev, rdev); rdev->raid_disk = -1; + removed++; } } + if (removed) + sysfs_notify(&mddev->kobj, NULL, + "degraded"); + list_for_each_entry(rdev, &mddev->disks, same_set) { if (rdev->raid_disk >= 0 && diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index cc24f0c..a368db2 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -531,8 +531,17 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect if (test_bit(WriteMostly, &rdev->flags)) { /* Don't balance among write-mostly, just * use the first as a last resort */ - if (best_disk < 0) + if (best_disk < 0) { + if (is_badblock(rdev, this_sector, sectors, + &first_bad, &bad_sectors)) { + if (first_bad < this_sector) + /* Cannot use this */ + continue; + best_good_sectors = first_bad - this_sector; + } else + best_good_sectors = sectors; best_disk = disk; + } continue; } /* This is a reasonable device to use. It might |
