[PATCH v3 3/4] scsi: sg: use queue_logical_sector_size() in max_sectors_bytes()

Logical sector size was never / is no longer necessarily 512.

Programatically speaking it may not be necessary for us to clamp
max_sectors to USHRT_MAX here, but since such clamping is used in
BLKSECTGET, it's probably a good idea to have it here too, so that
what the function returns is consistent to what the ioctl reports.

Alternatively we can clamp (max_sectors * logical_block_size) to
INT_MAX instead, or maybe even not clamping it at all.

P.S. sg_reserved_size is initially set to INT_MAX by
blk_mq_init_allocated_queue().

Signed-off-by: Tom Yan <redacted>
---
 drivers/scsi/sg.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 0e3f084141a3..deeab4855172 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c

@@ -848,10 +848,11 @@ static int srp_done(Sg_fd *sfp, Sg_request *srp)
 static int max_sectors_bytes(struct request_queue *q)
 {
 	unsigned int max_sectors = queue_max_sectors(q);
+	unsigned int logical_block_size = queue_logical_block_size(q);
 
-	max_sectors = min_t(unsigned int, max_sectors, INT_MAX >> 9);
+	max_sectors = min_t(unsigned int, max_sectors, USHRT_MAX);
 
-	return max_sectors << 9;
+	return max_sectors * logical_block_size;
 }
 
 static void

-- 
2.28.0