nvmet: fix byte swap in nvmet_execute_write_zeroes

The length field in the Write Zeroes command is a 16-bit field.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>

diff --git a/drivers/nvme/target/io-cmd.c b/drivers/nvme/target/io-cmd.c
index 4195115..e37acd7 100644 (file)
--- a/drivers/nvme/target/io-cmd.c
+++ b/drivers/nvme/target/io-cmd.c
@@ -180,7 +180,7 @@ static void nvmet_execute_write_zeroes(struct nvmet_req *req)
 
        sector = le64_to_cpu(write_zeroes->slba) <<
                (req->ns->blksize_shift - 9);
-       nr_sector = (((sector_t)le32_to_cpu(write_zeroes->length)) <<
+       nr_sector = (((sector_t)le16_to_cpu(write_zeroes->length)) <<
                (req->ns->blksize_shift - 9)) + 1;
 
        if (__blkdev_issue_zeroout(req->ns->bdev, sector, nr_sector,