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authorPankaj Raghav <p.raghav@samsung.com>2022-09-29 10:47:44 +0300
committerJens Axboe <axboe@kernel.dk>2022-09-29 16:45:47 +0300
commit8cafdb5ab94cda3ebb0975be16e2d564a05132ea (patch)
treee2ca60d8a274c3bd3d5a8e673428ac2ba267ade8 /block/blk-mq.h
parentdfdcbf1fc3ecc395e56afcacf0aa601dfadebd28 (diff)
downloadlinux-8cafdb5ab94cda3ebb0975be16e2d564a05132ea.tar.xz
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 <hch@lst.de> Suggested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20220929074745.103073-2-p.raghav@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.h')
-rw-r--r--block/blk-mq.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h
index 8ca453ac243d..0b2870839cdd 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -312,7 +312,8 @@ static inline void blk_mq_clear_mq_map(struct blk_mq_queue_map *qmap)
static inline struct blk_plug *blk_mq_plug( struct bio *bio)
{
/* Zoned block device write operation case: do not plug the BIO */
- if (bdev_is_zoned(bio->bi_bdev) && op_is_write(bio_op(bio)))
+ if (IS_ENABLED(CONFIG_BLK_DEV_ZONED) &&
+ bdev_op_is_zoned_write(bio->bi_bdev, bio_op(bio)))
return NULL;
/*