block: Remove code handling bio_alloc failure with __GFP_WAIT

Remove code handling bio_alloc failure with __GFP_WAIT.
GFP_KERNEL implies __GFP_WAIT.

Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2 files changed, 0 insertions, 5 deletions

diff --git a/block/blk-barrier.c b/block/blk-barrier.c
index f7dae57e6cab..20b4111fa050 100644
--- a/block/blk-barrier.c
+++ b/block/blk-barrier.c
@@ -319,9 +319,6 @@ int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector)
                 return -ENXIO;
 
         bio = bio_alloc(GFP_KERNEL, 0);
-        if (!bio)
-                return -ENOMEM;
-
         bio->bi_end_io = bio_end_empty_barrier;
         bio->bi_private = &wait;
         bio->bi_bdev = bdev;
diff --git a/block/ioctl.c b/block/ioctl.c
index 0f22e629b13c..ad474d4bbcce 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -146,8 +146,6 @@ static int blk_ioctl_discard(struct block_device *bdev, uint64_t start,
                 struct bio *bio;
 
                 bio = bio_alloc(GFP_KERNEL, 0);
-                if (!bio)
-                        return -ENOMEM;
 
                 bio->bi_end_io = blk_ioc_discard_endio;
                 bio->bi_bdev = bdev;