This is a note to let you know that I've just added the patch titled
cciss: Initialize scsi host max_sectors for tape drive support
to the 3.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cciss-initialize-scsi-host-max_sectors-for-tape-drive-support.patch
and it can be found in the queue-3.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 395d287526bb60411ff37b19ad9dd38b58ba8732 Mon Sep 17 00:00:00 2001
From: "Stephen M. Cameron" <[email protected]>
Date: Thu, 22 Mar 2012 21:40:08 +0100
Subject: cciss: Initialize scsi host max_sectors for tape drive support
From: "Stephen M. Cameron" <[email protected]>
commit 395d287526bb60411ff37b19ad9dd38b58ba8732 upstream.
The default is too small (1024 blocks), use h->cciss_max_sectors (8192 blocks)
Without this change, if you try to set the block size of a tape drive above
512*1024, via "mt -f /dev/st0 setblk nnn" where nnn is greater than 524288,
it won't work right.
Signed-off-by: Stephen M. Cameron <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/block/cciss_scsi.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -866,6 +866,7 @@ cciss_scsi_detect(ctlr_info_t *h)
sh->can_queue = cciss_tape_cmds;
sh->sg_tablesize = h->maxsgentries;
sh->max_cmd_len = MAX_COMMAND_SIZE;
+ sh->max_sectors = h->cciss_max_sectors;
((struct cciss_scsi_adapter_data_t *)
h->scsi_ctlr)->scsi_host = sh;
Patches currently in stable-queue which might be from
[email protected] are
queue-3.2/cciss-initialize-scsi-host-max_sectors-for-tape-drive-support.patch
queue-3.2/cciss-fix-scsi-tape-io-with-more-than-255-scatter-gather-elements.patch
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