From 7a91ee1f628ef6bfe3f13067c0ddf9db520cb86b Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Tue, 26 May 2009 12:57:21 +1000
Subject: [PATCH] md: don't update curr_resync_completed without also updating
reshape_position.
In order for the metadata to always be consistent, we mustn't updated
curr_resync_completed without also updating reshape_position.
The reshape code updates both at the same time. However since
commit 97e4f42d62badb0f9fbc27c013e89bc1336a03bc
the common md_do_sync will sometimes update curr_resync_completed
but is not in a position to update reshape_position.
So if MD_RECOVERY_RESHAPE is set (indicating that a reshape is
happening, so reshape_position might change), don't update
curr_resync_completed in md_do_sync, leave it to the per-personality
reshape code.
Signed-off-by: NeilBrown <neilb@suse.de>
---
drivers/md/md.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 384e4f0904c83..954456532acc6 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6362,12 +6362,13 @@ void md_do_sync(mddev_t *mddev)
skipped = 0;
- if ((mddev->curr_resync > mddev->curr_resync_completed &&
- (mddev->curr_resync - mddev->curr_resync_completed)
- > (max_sectors >> 4)) ||
- (j - mddev->curr_resync_completed)*2
- >= mddev->resync_max - mddev->curr_resync_completed
- ) {
+ if (!test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
+ ((mddev->curr_resync > mddev->curr_resync_completed &&
+ (mddev->curr_resync - mddev->curr_resync_completed)
+ > (max_sectors >> 4)) ||
+ (j - mddev->curr_resync_completed)*2
+ >= mddev->resync_max - mddev->curr_resync_completed
+ )) {
/* time to update curr_resync_completed */
blk_unplug(mddev->queue);
wait_event(mddev->recovery_wait,
--
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