linux-kernel - [PATCH V2 2/3] block: set ioprio for flush bio

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Date:   Tue, 20 Aug 2019 23:11:55 -0700
From:   Chaitanya Kulkarni <chaitanya.kulkarni@....com>
To:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     axboe@...nel.dk, Chaitanya Kulkarni <chaitanya.kulkarni@....com>
Subject: [PATCH V2 2/3] block: set ioprio for flush bio

Set the current process's iopriority for flush bio.

Reviewed-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@....com>
---
 block/blk-flush.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/blk-flush.c b/block/blk-flush.c
index aedd9320e605..642a01b72a8b 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -445,6 +445,7 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
 	bio = bio_alloc(gfp_mask, 0);
 	bio_set_dev(bio, bdev);
 	bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
+	bio_set_prio(bio, get_current_ioprio());
 
 	ret = submit_bio_wait(bio);
 
-- 
2.17.0