[PATCH 20/60] f2fs: f2fs_read_end_io: comment on direct access to bvec table

From	Ming Lei <tom.leiming@gmail.com>
Newsgroups	linux.kernel
Subject	[PATCH 20/60] f2fs: f2fs_read_end_io: comment on direct access to bvec table
Date	2016-10-29 10:30 +0200
Message-ID	<sxxbA-3Kf-49@gated-at.bofh.it> (permalink)
References	<sxx1U-3GR-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Signed-off-by: Ming Lei <tom.leiming@gmail.com>
---
 fs/f2fs/data.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 9ae194fd2fdb..24f6f6977d37 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -35,6 +35,10 @@ 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))
 		bio->bi_error = -EIO;
 #endif
-- 
2.7.4

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[PATCH 20/60] f2fs: f2fs_read_end_io: comment on direct access to bvec table Ming Lei <tom.leiming@gmail.com> - 2016-10-29 10:30 +0200

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