[PATCH v2 03/51] kernel/power/swap.c: comment on direct access to bvec table

From	Ming Lei <ming.lei@redhat.com>
Newsgroups	linux.kernel
Subject	[PATCH v2 03/51] kernel/power/swap.c: comment on direct access to bvec table
Date	2017-06-26 14:20 +0200
Message-ID	<tWB9M-2fr-25@gated-at.bofh.it> (permalink)
References	<tWB9L-2fr-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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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[PATCH v2 03/51] kernel/power/swap.c: comment on direct access to bvec table Ming Lei <ming.lei@redhat.com> - 2017-06-26 14:20 +0200

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