From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@fb.com>, Christoph Hellwig <hch@infradead.org>,
Huang Ying <ying.huang@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
Ming Lei <ming.lei@redhat.com>, Jaegeuk Kim <jaegeuk@kernel.org>,
Chao Yu <yuchao0@huawei.com>,
linux-f2fs-devel@lists.sourceforge.net
Subject: [PATCH v2 06/51] f2fs: f2fs_read_end_io: comment on direct access to bvec table
Date: Mon, 26 Jun 2017 20:09:49 +0800 [thread overview]
Message-ID: <20170626121034.3051-7-ming.lei@redhat.com> (raw)
In-Reply-To: <20170626121034.3051-1-ming.lei@redhat.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: linux-f2fs-devel@lists.sourceforge.net
Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
fs/f2fs/data.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 7697d03e8a98..622c44a1be78 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -56,6 +56,10 @@ static void f2fs_read_end_io(struct bio *bio)
int i;
#ifdef CONFIG_F2FS_FAULT_INJECTION
+ /*
+ * It is still safe to retrieve the 1st page of the bio
+ * in this way after supporting multipage bvec.
+ */
if (time_to_inject(F2FS_P_SB(bio->bi_io_vec->bv_page), FAULT_IO)) {
f2fs_show_injection_info(FAULT_IO);
bio->bi_status = BLK_STS_IOERR;
--
2.9.4
next parent reply other threads:[~2017-06-26 12:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170626121034.3051-1-ming.lei@redhat.com>
2017-06-26 12:09 ` Ming Lei [this message]
2017-06-26 12:10 ` [PATCH v2 45/51] f2fs: convert to bio_for_each_segment_all_sp() Ming Lei
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