diff options
| author | Heinz Mauelshagen <heinzm@redhat.com> | 2017-01-14 03:53:10 +0100 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2017-01-25 12:49:07 +0100 |
| commit | e2568465bd55b3ee619d9ebd02cc330feffaae04 (patch) | |
| tree | 7481cb1db2ff94717e1f5bc20e6797ec9e668377 /drivers/md | |
| parent | dm raid: add raid4/5/6 journaling support (diff) | |
| download | linux-e2568465bd55b3ee619d9ebd02cc330feffaae04.tar.xz linux-e2568465bd55b3ee619d9ebd02cc330feffaae04.zip | |
dm raid: use read_disk_sb() throughout
For consistency, call read_disk_sb() from
attempt_restore_of_faulty_devices() instead
of calling sync_page_io() directly.
Explicitly set device to faulty on superblock read error.
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-raid.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index e52c493212d0..c982649497a5 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -1936,18 +1936,21 @@ static int rs_check_reshape(struct raid_set *rs) return -EPERM; } -static int read_disk_sb(struct md_rdev *rdev, int size) +static int read_disk_sb(struct md_rdev *rdev, int size, bool force_reload) { BUG_ON(!rdev->sb_page); - if (rdev->sb_loaded) + if (rdev->sb_loaded && !force_reload) return 0; + rdev->sb_loaded = 0; + if (!sync_page_io(rdev, 0, size, rdev->sb_page, REQ_OP_READ, 0, true)) { DMERR("Failed to read superblock of device at position %d", rdev->raid_disk); md_error(rdev->mddev, rdev); - return -EINVAL; + set_bit(Faulty, &rdev->flags); + return -EIO; } rdev->sb_loaded = 1; @@ -2075,7 +2078,7 @@ static int super_load(struct md_rdev *rdev, struct md_rdev *refdev) return -EINVAL; } - r = read_disk_sb(rdev, rdev->sb_size); + r = read_disk_sb(rdev, rdev->sb_size, false); if (r) return r; @@ -2453,7 +2456,6 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs) * The rdev has to stay on the same_set list to allow for * the attempt to restore faulty devices on second resume. */ - set_bit(Faulty, &rdev->flags); rdev->raid_disk = rdev->saved_raid_disk = -1; break; } @@ -3548,9 +3550,8 @@ static void attempt_restore_of_faulty_devices(struct raid_set *rs) if (test_bit(Journal, &r->flags)) continue; - if (test_bit(Faulty, &r->flags) && r->sb_page && - sync_page_io(r, 0, r->sb_size, r->sb_page, - REQ_OP_READ, 0, true)) { + if (test_bit(Faulty, &r->flags) && + r->meta_bdev && !read_disk_sb(r, r->sb_size, true)) { DMINFO("Faulty %s device #%d has readable super block." " Attempting to revive it.", rs->raid_type->name, i); |