On 2020-09-04 4:05 p.m., Tom Yan wrote:
It should give out the maximum number of sectors per request
instead of maximum number of bytes.
Signed-off-by: Tom Yan <tom.ty89@xxxxxxxxx>
Acked-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
---
drivers/scsi/sg.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 20472aaaf630..e57831910228 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -922,6 +922,7 @@ sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp,
int result, val, read_only;
Sg_request *srp;
unsigned long iflags;
+ unsigned int max_sectors;
SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp,
"sg_ioctl: cmd=0x%x\n", (int) cmd_in));
@@ -1114,8 +1115,9 @@ sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp,
sdp->sgdebug = (char) val;
return 0;
case BLKSECTGET:
- return put_user(max_sectors_bytes(sdp->device->request_queue),
- ip);
+ max_sectors = min_t(unsigned int, USHRT_MAX,
+ queue_max_sectors(sdp->device->request_queue));
+ return put_user(max_sectors, ip);
case BLKTRACESETUP:
return blk_trace_setup(sdp->device->request_queue,
sdp->disk->disk_name,
