Cc: Jaegeuk Kim <jaeg...@kernel.org>
Cc: Chao Yu <yuch...@huawei.com>
Cc: linux-f2fs-devel@lists.sourceforge.net
Signed-off-by: Ming Lei <ming....@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 87c1f4150c64..99fa8e9780e8 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


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