Commit f75e2b79 authored Dec 16, 2020 by Josef Bacik Committed by David Sterba Feb 08, 2021

btrfs: allow error injection for btrfs_search_slot and btrfs_cow_block



The following patches are going to address error handling in relocation,
in order to test those patches I need to be able to inject errors in
btrfs_search_slot and btrfs_cow_block, as we call both of these pretty
often in different cases during relocation.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent 69948022

fs/btrfs/ctree.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1494,6 +1494,7 @@ noinline int btrfs_cow_block(struct btrfs_trans_handle *trans,

		return ret;
		}
		ALLOW_ERROR_INJECTION(btrfs_cow_block, ERRNO);

		/*
		* helper function for defrag to decide if two blocks pointed to by a
		@@ -2821,6 +2822,7 @@ int btrfs_search_slot(struct btrfs_trans_handle trans, struct btrfs_root root,
		btrfs_release_path(p);
		return ret;
		}
		ALLOW_ERROR_INJECTION(btrfs_search_slot, ERRNO);

		/*
		* Like btrfs_search_slot, this looks for a key in the given tree. It uses the