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| author | NeilBrown <neilb@suse.de> | 2009-12-14 12:50:06 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-12-14 12:51:41 +1100 |
| commit | 93be75ffde6dfd1ad17cc3ff1dbd135bd711baf4 (patch) | |
| tree | 56006efccad176da1b806978faf60d77c817e6ac /drivers/md/md.c | |
| parent | aa98aa31987ad9831711ae71ea2270228ab62532 (diff) | |
| download | kernel_samsung_crespo-93be75ffde6dfd1ad17cc3ff1dbd135bd711baf4.zip kernel_samsung_crespo-93be75ffde6dfd1ad17cc3ff1dbd135bd711baf4.tar.gz kernel_samsung_crespo-93be75ffde6dfd1ad17cc3ff1dbd135bd711baf4.tar.bz2 | |
md: integrate spares into array at earliest opportunity.
As v1.x metadata can record that a member of the array is
not completely recovered, it make sense to record that a
spare has become a regular member of the array at the earliest
opportunity.
So remove the tests on "recovery_offset > 0" in super_1_sync
as they really aren't needed, and schedule a metadata update
immediately after adding spares to a degraded array.
This means that if a crash happens immediately after a recovery
starts, the new device will be included in the array and recovery will
continue from wherever it was up to. Previously this didn't happen
unless recovery was at least 1/16 of the way through.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 0856437..68a8a29 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1508,12 +1508,10 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev) if (rdev->raid_disk >= 0 && !test_bit(In_sync, &rdev->flags)) { - if (rdev->recovery_offset > 0) { - sb->feature_map |= - cpu_to_le32(MD_FEATURE_RECOVERY_OFFSET); - sb->recovery_offset = - cpu_to_le64(rdev->recovery_offset); - } + sb->feature_map |= + cpu_to_le32(MD_FEATURE_RECOVERY_OFFSET); + sb->recovery_offset = + cpu_to_le64(rdev->recovery_offset); } if (mddev->reshape_position != MaxSector) { @@ -1547,7 +1545,7 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev) sb->dev_roles[i] = cpu_to_le16(0xfffe); else if (test_bit(In_sync, &rdev2->flags)) sb->dev_roles[i] = cpu_to_le16(rdev2->raid_disk); - else if (rdev2->raid_disk >= 0 && rdev2->recovery_offset > 0) + else if (rdev2->raid_disk >= 0) sb->dev_roles[i] = cpu_to_le16(rdev2->raid_disk); else sb->dev_roles[i] = cpu_to_le16(0xffff); @@ -6786,6 +6784,7 @@ static int remove_and_add_spares(mddev_t *mddev) nm, mdname(mddev)); spares++; md_new_event(mddev); + set_bit(MD_CHANGE_DEVS, &mddev->flags); } else break; } |