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[v6,01/52] btrfs: allow error injection for btrfs_search_slot and btrfs_cow_block

Message ID 19dc35ed62b15274a23dcfe78639d18b1cf120af.1607444471.git.josef@toxicpanda.com (mailing list archive)
State New, archived
Headers show
Series | expand

Commit Message

Josef Bacik Dec. 8, 2020, 4:23 p.m. UTC 
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>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
---
 fs/btrfs/ctree.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index cc89b63d65a4..56e132d825a2 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -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