2017-11-22 21:25:49

by Josef Bacik

[permalink] [raw]
Subject: [PATCH v7 2/5] btrfs: make open_ctree error injectable

From: Josef Bacik <[email protected]>

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

Signed-off-by: Josef Bacik <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
---
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..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)
{
--
2.7.5


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