From: Tom Yan <tom.ty89@gmail.com>
To: linux-scsi@vger.kernel.org, dgilbert@interlog.com,
bvanassche@acm.org, gregkh@linuxfoundation.org
Cc: stern@rowland.harvard.edu, akinobu.mita@gmail.com, hch@lst.de,
linux-api@vger.kernel.org, Tom Yan <tom.ty89@gmail.com>
Subject: [PATCH v3 2/4] scsi: sg: implement BLKSSZGET
Date: Sun, 6 Sep 2020 15:51:50 +0800 [thread overview]
Message-ID: <20200906075152.2927-2-tom.ty89@gmail.com> (raw)
In-Reply-To: <20200906075152.2927-1-tom.ty89@gmail.com>
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 <tom.ty89@gmail.com>
---
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
next prev parent reply other threads:[~2020-09-06 7:52 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-04 4:42 About BLKSECTGET in sg Tom Yan
2020-09-04 16:28 ` Douglas Gilbert
2020-09-04 19:21 ` Tom Yan
2020-09-04 20:05 ` [PATCH 1/4] scsi: sg: fix BLKSECTGET ioctl Tom Yan
2020-09-04 20:05 ` [PATCH 2/4] scsi: sg: implement BLKSSZGET Tom Yan
2020-09-05 18:37 ` Douglas Gilbert
2020-09-04 20:05 ` [PATCH 3/4] scsi: sg: use queue_logical_sector_size() in max_sectors_bytes() Tom Yan
2020-09-05 18:37 ` Douglas Gilbert
2020-09-04 20:05 ` [PATCH 4/4] block/scsi_ioctl.c: " Tom Yan
2020-09-05 18:37 ` Douglas Gilbert
2020-09-05 18:37 ` [PATCH 1/4] scsi: sg: fix BLKSECTGET ioctl Douglas Gilbert
2020-09-05 19:32 ` Bart Van Assche
2020-09-05 20:36 ` Douglas Gilbert
2020-09-06 1:19 ` Tom Yan
2020-09-06 1:25 ` [PATCH RESEND " Tom Yan
2020-09-06 1:25 ` [PATCH RESEND 2/4] scsi: sg: implement BLKSSZGET Tom Yan
2020-09-06 1:25 ` [PATCH RESEND 3/4] scsi: sg: use queue_logical_sector_size() in max_sectors_bytes() Tom Yan
2020-09-06 1:25 ` [PATCH RESEND 4/4] block/scsi_ioctl.c: " Tom Yan
2020-09-06 1:27 ` [PATCH RESEND 1/4] scsi: sg: fix BLKSECTGET ioctl Tom Yan
2020-09-06 1:27 ` [PATCH RESEND 2/4] scsi: sg: implement BLKSSZGET Tom Yan
2020-09-07 6:09 ` Christoph Hellwig
2020-09-07 9:01 ` Tom Yan
2020-09-08 8:42 ` Christoph Hellwig
2020-09-10 1:59 ` Tom Yan
2020-09-10 5:28 ` Christoph Hellwig
2020-09-11 2:52 ` Tom Yan
2020-09-11 6:48 ` Christoph Hellwig
2020-09-11 17:52 ` Douglas Gilbert
2020-09-11 21:33 ` Alan Stern
2020-09-16 5:47 ` Tom Yan
2020-09-06 1:27 ` [PATCH RESEND 3/4] scsi: sg: use queue_logical_sector_size() in max_sectors_bytes() Tom Yan
2020-09-06 6:26 ` Greg KH
2020-09-06 7:01 ` Tom Yan
2020-09-06 7:40 ` [PATCH v2 1/4] scsi: sg: fix BLKSECTGET ioctl Tom Yan
2020-09-06 7:40 ` [PATCH v2 2/4] scsi: sg: implement BLKSSZGET Tom Yan
2020-09-06 7:40 ` [PATCH v2 3/4] scsi: sg: use queue_logical_sector_size() in max_sectors_bytes() Tom Yan
2020-09-06 7:40 ` [PATCH v2 4/4] block/scsi_ioctl.c: " Tom Yan
2020-09-06 7:51 ` [PATCH v3 1/4] scsi: sg: fix BLKSECTGET ioctl Tom Yan
2020-09-06 7:51 ` Tom Yan [this message]
2020-09-06 7:51 ` [PATCH v3 3/4] scsi: sg: use queue_logical_sector_size() in max_sectors_bytes() Tom Yan
2020-09-06 7:51 ` [PATCH v3 4/4] block/scsi_ioctl.c: " Tom Yan
2020-09-06 1:27 ` [PATCH RESEND " Tom Yan
2020-09-06 5:09 ` [PATCH 1/4] scsi: sg: fix BLKSECTGET ioctl Douglas Gilbert
2020-09-06 7:16 ` Tom Yan
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