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md: write bitmap information to devices that are undergoing recovery. 

When we add some spares to an array and start recovery, and we have
a bitmap which is stored 'internally' on all devices, we call
bitmap_write_all to make sure the bitmap is correct on the new
device(s).
However that doesn't work as write_sb_page only writes to
'In_sync' devices, and devices undergoing recovery are not
'In_sync' until recovery finishes.

So extend write_sb_page (actually next_active_rdev) to include devices
that are under recovery.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2009-03-31 14:27:02 +11:00
parent d0a4bb4927
commit 355a43e641
1 changed files with 0 additions and 1 deletions
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1
drivers/md/bitmap.c
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@ -266,7 +266,6 @@ static mdk_rdev_t *next_active_rdev(mdk_rdev_t *rdev, mddev_t *mddev)
list_for_each_continue_rcu(pos, &mddev->disks) {
rdev = list_entry(pos, mdk_rdev_t, same_set);
if (rdev->raid_disk >= 0 &&
test_bit(In_sync, &rdev->flags) &&
!test_bit(Faulty, &rdev->flags)) {
/* this is a usable devices */
atomic_inc(&rdev->nr_pending);