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From: Josef Bacik <josef@toxicpanda.com>
To: rostedt@goodmis.org, mingo@redhat.com, davem@davemloft.net,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	ast@kernel.org, kernel-team@fb.com, daniel@iogearbox.net,
	linux-btrfs@vger.kernel.org
Cc: Josef Bacik <jbacik@fb.com>
Subject: [PATCH v9 2/5] btrfs: make open_ctree error injectable
Date: Mon, 11 Dec 2017 11:36:47 -0500	[thread overview]
Message-ID: <1513010210-30594-3-git-send-email-josef@toxicpanda.com> (raw)
In-Reply-To: <1513010210-30594-1-git-send-email-josef@toxicpanda.com>

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(+)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 10a2a579cc7f..02b5f5667754 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 @@ 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

  parent reply	other threads:[~2017-12-11 16:37 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-11 16:36 [PATCH v9 0/5] Add the ability to do BPF directed error injection Josef Bacik
2017-12-11 16:36 ` [PATCH v9 1/5] add infrastructure for tagging functions as error injectable Josef Bacik
2017-12-11 16:36 ` Josef Bacik [this message]
2017-12-11 16:36 ` [PATCH v9 3/5] bpf: add a bpf_override_function helper Josef Bacik
2017-12-11 16:36 ` [PATCH v9 4/5] samples/bpf: add a test for bpf_override_return Josef Bacik
2017-12-11 16:36 ` [PATCH v9 5/5] btrfs: allow us to inject errors at io_ctl_init Josef Bacik
2017-12-12 17:37 ` [PATCH v9 0/5] Add the ability to do BPF directed error injection Alexei Starovoitov
2017-12-12 23:11 ` Darrick J. Wong
2017-12-13 18:03   ` Josef Bacik
2017-12-13 18:07     ` Darrick J. Wong
2017-12-13 18:57       ` Josef Bacik
2017-12-14  6:46         ` Masami Hiramatsu

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