From 8cafdb5ab94cda3ebb0975be16e2d564a05132ea Mon Sep 17 00:00:00 2001 From: Pankaj Raghav Date: Thu, 29 Sep 2022 09:47:44 +0200 Subject: block: adapt blk_mq_plug() to not plug for writes that require a zone lock The current implementation of blk_mq_plug() disables plugging for all operations that involves a transfer to the device as we just check if the last bit in op_is_write() function. Modify blk_mq_plug() to disable plugging only for REQ_OP_WRITE and REQ_OP_WRITE_ZEROS as they might require a zone lock. Suggested-by: Christoph Hellwig Suggested-by: Damien Le Moal Reviewed-by: Christoph Hellwig Signed-off-by: Pankaj Raghav Reviewed-by: Damien Le Moal Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20220929074745.103073-2-p.raghav@samsung.com Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux/blkdev.h') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 4750772ef228..49373d002631 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1304,6 +1304,15 @@ static inline bool bdev_is_zoned(struct block_device *bdev) return false; } +static inline bool bdev_op_is_zoned_write(struct block_device *bdev, + blk_opf_t op) +{ + if (!bdev_is_zoned(bdev)) + return false; + + return op == REQ_OP_WRITE || op == REQ_OP_WRITE_ZEROES; +} + static inline sector_t bdev_zone_sectors(struct block_device *bdev) { struct request_queue *q = bdev_get_queue(bdev); -- cgit v1.2.3