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>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
linux-pm@vger.kernel.org
Subject: [PATCH v2 03/51] kernel/power/swap.c: comment on direct access to bvec table
Date: Mon, 26 Jun 2017 20:09:46 +0800 [thread overview]
Message-ID: <20170626121034.3051-4-ming.lei@redhat.com> (raw)
In-Reply-To: <20170626121034.3051-1-ming.lei@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
kernel/power/swap.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 57d22571f306..aa52ccc03fcc 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -238,6 +238,8 @@ static void hib_init_batch(struct hib_bio_batch *hb)
static void hib_end_io(struct bio *bio)
{
struct hib_bio_batch *hb = bio->bi_private;
+
+ /* single page bio, safe for multipage bvec */
struct page *page = bio->bi_io_vec[0].bv_page;
if (bio->bi_status) {
--
2.9.4
--
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parent reply other threads:[~2017-06-26 12:09 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20170626121034.3051-1-ming.lei@redhat.com>]
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