[PATCH v2 2/4] scsi: sg: implement BLKSSZGET
From: Tom Yan <hidden>
Date: 2020-09-06 07:40:32
Also in:
linux-scsi
Subsystem:
scsi sg driver, scsi subsystem, the rest · Maintainers:
Doug Gilbert, "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
Provide an ioctl to get the logical sector size so that the maximum bytes per request can be derived. Follow-up of the BLKSECTGET fix. Signed-off-by: Tom Yan <redacted> --- drivers/scsi/sg.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index e57831910228..0e3f084141a3 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c@@ -1118,6 +1118,8 @@ sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp, max_sectors = min_t(unsigned int, USHRT_MAX, queue_max_sectors(sdp->device->request_queue)); return put_user(max_sectors, ip); + case BLKSSZGET: + return put_user(queue_logical_block_size(sdp->device->request_queue), ip); case BLKTRACESETUP: return blk_trace_setup(sdp->device->request_queue, sdp->disk->disk_name,
--
2.28.0