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block: use an on-stack bio in blkdev_issue_flush

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There is no point in allocating memory for a synchronous flush.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Acked-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2021-01-26 15:52:35 +01:00
committed by Jens Axboe
parent 3175199ab0
commit c6bf3f0e25
23 changed files with 33 additions and 38 deletions
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2
drivers/nvme/target/io-cmd-bdev.c
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@@ -333,7 +333,7 @@ static void nvmet_bdev_execute_flush(struct nvmet_req *req)
u16 nvmet_bdev_flush(struct nvmet_req *req)
{
if (blkdev_issue_flush(req->ns->bdev, GFP_KERNEL))
if (blkdev_issue_flush(req->ns->bdev))
return NVME_SC_INTERNAL | NVME_SC_DNR;
return 0;
}