Commit 1871ae78 authored by robbieko's avatar robbieko Committed by David Sterba
Browse files

btrfs: fix wrong min_objectid in btrfs_previous_item() call 



When found_start > start and slot == 0, btrfs_previous_item() is called
with min_objectid=start to find the previous stripe extent. However, the
previous stripe extent we are looking for has objectid < start (it starts
before our deletion range), so passing start as min_objectid prevents
finding it.

Fix by passing 0 as min_objectid to allow finding any preceding stripe
extent regardless of its objectid.

Reviewed-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: default avatarrobbieko <robbieko@synology.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 2aef5cb1

fs/btrfs/raid-stripe-tree.c

+1 −1
Original line number Diff line number Diff line
@@ -138,7 +138,7 @@ int btrfs_delete_raid_extent(struct btrfs_trans_handle *trans, u64 start, u64 le 
		 */

		if (found_start > start) {

			if (slot == 0) {

				ret = btrfs_previous_item(stripe_root, path, start,

				ret = btrfs_previous_item(stripe_root, path, 0,

							  BTRFS_RAID_STRIPE_KEY);

				if (ret) {

					if (ret > 0)