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-rw-r--r--drivers/md/md.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 34846856dbc6..32fc19c540d4 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5599,7 +5599,7 @@ static int get_array_info(struct mddev * mddev, void __user * arg)
if (mddev->in_sync)
info.state = (1<<MD_SB_CLEAN);
if (mddev->bitmap && mddev->bitmap_info.offset)
- info.state = (1<<MD_SB_BITMAP_PRESENT);
+ info.state |= (1<<MD_SB_BITMAP_PRESENT);
info.active_disks = insync;
info.working_disks = working;
info.failed_disks = failed;
@@ -7501,6 +7501,19 @@ void md_do_sync(struct md_thread *thread)
rdev->recovery_offset < j)
j = rdev->recovery_offset;
rcu_read_unlock();
+
+ /* If there is a bitmap, we need to make sure all
+ * writes that started before we added a spare
+ * complete before we start doing a recovery.
+ * Otherwise the write might complete and (via
+ * bitmap_endwrite) set a bit in the bitmap after the
+ * recovery has checked that bit and skipped that
+ * region.
+ */
+ if (mddev->bitmap) {
+ mddev->pers->quiesce(mddev, 1);
+ mddev->pers->quiesce(mddev, 0);
+ }
}
printk(KERN_INFO "md: %s of RAID array %s\n", desc, mdname(mddev));