From: Josef Bacik <jbacik@fb.com>
Date: Mon, 11 Dec 2017 16:36:47 +0000 (-0500)
Subject: btrfs: make open_ctree error injectable
X-Git-Tag: v4.19~1702^2~346^2~8^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8556e50994c8a8f5282fea008ae084d6d080648a;p=platform%2Fkernel%2Flinux-rpi3.git

btrfs: make open_ctree error injectable

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>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
---

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 10a2a57..02b5f56 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"
@@ -3123,6 +3124,7 @@ recovery_tree_root:
 		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)
 {