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authorChaitanya Kulkarni <chaitanya.kulkarni@wdc.com>2020-01-07 13:58:17 -0800
committerJens Axboe <axboe@kernel.dk>2020-01-09 07:59:12 -0700
commit8e42d239cb027143915cae13eb2ecf1360ee24de (patch)
treee20bfca5f7cbb9215c814540210d1602d2c440aa /block/blk-zoned.c
parent105663f73e71b5e79ecf472c0499c9acde654b28 (diff)
downloadlwn-8e42d239cb027143915cae13eb2ecf1360ee24de.tar.gz
lwn-8e42d239cb027143915cae13eb2ecf1360ee24de.zip
block: mark zone-mgmt bios with REQ_SYNC
In the current implementation, final zone-mgmt request is issued with submit_bio_wait() which marks the bio REQ_SYNC. This is needed since immediate action is expected for zone-mgmt requests as these are blocking operations. This also bypasses the scheduler in the blk_mq_make_request() and dispatches the request directly into the hw ctx. This patch marks all the chained bios REQ_SYNC so that we can have above-mentioned behavior for non-final bios also. Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Bob Liu <bob.liu@oracle.com> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-zoned.c')
-rw-r--r--block/blk-zoned.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-zoned.c b/block/blk-zoned.c
index d00fcfd71dfe..05741c6f618b 100644
--- a/block/blk-zoned.c
+++ b/block/blk-zoned.c
@@ -198,7 +198,7 @@ int blkdev_zone_mgmt(struct block_device *bdev, enum req_opf op,
break;
}
- bio->bi_opf = op;
+ bio->bi_opf = op | REQ_SYNC;
bio->bi_iter.bi_sector = sector;
sector += zone_sectors;