[PATCH v1 03/54] kernel/power/swap.c: comment on direct access to bvec table

From	Ming Lei <tom.leiming@gmail.com>
Newsgroups	linux.kernel
Subject	[PATCH v1 03/54] kernel/power/swap.c: comment on direct access to bvec table
Date	2016-12-27 17:10 +0100
Message-ID	<sT2u7-4eA-69@gated-at.bofh.it> (permalink)
References	<sT2u5-4eA-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Signed-off-by: Ming Lei <tom.leiming@gmail.com>
---
 kernel/power/swap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 32e0c232efba..031e709c9fc4 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_error) {
-- 
2.7.4

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[PATCH v1 03/54] kernel/power/swap.c: comment on direct access to bvec table Ming Lei <tom.leiming@gmail.com> - 2016-12-27 17:10 +0100

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