Signed-off-by: Ming Lei <[email protected]>
---
 fs/f2fs/data.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 9ac262564fa6..5d1a192e1c3c 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -55,6 +55,10 @@ 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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