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[v7,2/5] btrfs: make open_ctree error injectable

Message ID 1511385814-20863-3-git-send-email-josef@toxicpanda.com
State Changes Requested, archived
Delegated to: BPF Maintainers
Headers show
Series Add the ability to do BPF directed error injection | expand

Commit Message

Josef Bacik Nov. 22, 2017, 9:23 p.m. UTC 
From: Josef Bacik <jbacik@fb.com>

This allows us to do error injection with BPF for open_ctree.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
---
 fs/btrfs/disk-io.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index dfdab849037b..69d17a640b94 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -30,6 +30,7 @@ 
 #include <linux/ratelimit.h>
 #include <linux/uuid.h>
 #include <linux/semaphore.h>
+#include <linux/bpf.h>
 #include <asm/unaligned.h>
 #include "ctree.h"
 #include "disk-io.h"
@@ -3283,6 +3284,7 @@  int open_ctree(struct super_block *sb,
 		goto fail_block_groups;
 	goto retry_root_backup;
 }
+BPF_ALLOW_ERROR_INJECTION(open_ctree);
 
 static void btrfs_end_buffer_write_sync(struct buffer_head *bh, int uptodate)
 {