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Subject[PATCH 2/4] btrfs: make open_ctree error injectable
Date
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>
---
fs/btrfs/disk-io.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index dfdab849037b..c6b4e1f07072 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -31,6 +31,7 @@
#include <linux/uuid.h>
#include <linux/semaphore.h>
#include <asm/unaligned.h>
+#include <asm/kprobes.h>
#include "ctree.h"
#include "disk-io.h"
#include "hash.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)
{
--
2.7.5
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