linux-kernel - [PATCH 6/6] bcache: don't pass BIOSET_NEED_BVECS for the 'bio_set' embedded in 'cache

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Date:   Wed, 30 Dec 2020 08:32:55 +0800
From:   Ming Lei <ming.lei@...hat.com>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     linux-block@...r.kernel.org, Christoph Hellwig <hch@....de>,
        linux-kernel@...r.kernel.org, Ming Lei <ming.lei@...hat.com>,
        linux-bcache@...r.kernel.org, Coly Li <colyli@...e.de>
Subject: [PATCH 6/6] bcache: don't pass BIOSET_NEED_BVECS for the 'bio_set' embedded in 'cache_set'

This bioset is just for allocating bio only from bio_next_split, and it needn't
bvecs, so remove the flag.

Cc: linux-bcache@...r.kernel.org
Cc: Coly Li <colyli@...e.de>
Signed-off-by: Ming Lei <ming.lei@...hat.com>
---
 drivers/md/bcache/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 0e06d721cd8e..61c8aafc0a32 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1897,7 +1897,7 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
 		goto err;
 
 	if (bioset_init(&c->bio_split, 4, offsetof(struct bbio, bio),
-			BIOSET_NEED_BVECS|BIOSET_NEED_RESCUER))
+			BIOSET_NEED_RESCUER))
 		goto err;
 
 	c->uuids = alloc_meta_bucket_pages(GFP_KERNEL, sb);
-- 
2.28.0