[PATCH 2/4] btrfs: make open_ctree error injectable
From: Josef Bacik <josef@toxicpanda.com>
Date: 2017-11-17 18:00:49
Also in:
linux-btrfs, lkml
Subsystem:
btrfs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Chris Mason, David Sterba, Alexander Viro, Christian Brauner, Linus Torvalds
From: Josef Bacik <redacted> This allows us to do error injection with BPF for open_ctree. Signed-off-by: Josef Bacik <redacted> --- 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