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md-cluster: Read the disk bitmap sb and check if it needs recovery 

In gather_all_resync_info, we need to read the disk bitmap sb and
check if it needs recovery.

Reviewed-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: NeilBrown <neilb@suse.com>
This commit is contained in:
Guoqing Jiang 2015-07-10 17:01:22 +08:00 committed by NeilBrown
parent eece075cda
commit abb9b22ac9
1 changed files with 15 additions and 1 deletions
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16
drivers/md/md-cluster.c
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@ -625,6 +625,7 @@ static int gather_all_resync_info(struct mddev *mddev, int total_slots)
struct dlm_lock_resource *bm_lockres;
struct suspend_info *s;
char str[64];
sector_t lo, hi;
for (i = 0; i < total_slots; i++) {
@ -659,7 +660,20 @@ static int gather_all_resync_info(struct mddev *mddev, int total_slots)
lockres_free(bm_lockres);
goto out;
}
/* TODO: Read the disk bitmap sb and check if it needs recovery */
/* Read the disk bitmap sb and check if it needs recovery */
ret = bitmap_copy_from_slot(mddev, i, &lo, &hi, false);
if (ret) {
pr_warn("md-cluster: Could not gather bitmaps from slot %d", i);
lockres_free(bm_lockres);
continue;
}
if ((hi > 0) && (lo < mddev->recovery_cp)) {
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
mddev->recovery_cp = lo;
md_check_recovery(mddev);
}
dlm_unlock_sync(bm_lockres);
lockres_free(bm_lockres);
}