md/raid1: remove unnecessary null checking

If %__GFP_DIRECT_RECLAIM is set then bio_alloc_bioset will always
be able to allocate a bio. See comment of bio_alloc_bioset.

Signed-off-by: Gou Hao <gouhao@uniontech.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20231214151458.28970-1-gouhao@uniontech.com

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 9348f17095120414b106a9bb1e02a1707e78bff5..19c9bf0060ae613a77b0decfe47858bd1ed93f0b 100644 (file)
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1124,8 +1124,6 @@ static void alloc_behind_master_bio(struct r1bio *r1_bio,
 
        behind_bio = bio_alloc_bioset(NULL, vcnt, 0, GFP_NOIO,
                                      &r1_bio->mddev->bio_set);
-       if (!behind_bio)
-               return;
 
        /* discard op, we don't support writezero/writesame yet */
        if (!bio_has_data(bio)) {