This is a note to let you know that I've just added the patch titled
[SCSI] target: Fix volume size misreporting for volumes > 2TB
to the 2.6.38-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:
target-fix-volume-size-misreporting-for-volumes-2tb.patch
and it can be found in the queue-2.6.38 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 904f0bc482201fa86e75c330d79dfd11be494cf8 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <[email protected]>
Date: Wed, 2 Mar 2011 15:52:51 -0800
Subject: [SCSI] target: Fix volume size misreporting for volumes > 2TB
From: Nicholas Bellinger <[email protected]>
commit 904f0bc482201fa86e75c330d79dfd11be494cf8 upstream.
the target infrastructure fails to send the correct conventional size
to READ_CAPACITY that force a retry with READ_CAPACITY_16, which reads
the capacity for devices > 2TB. Fix by adding the correct return to
trigger RC(16).
Reported-by: Ben Jarvis <[email protected]>
Signed-off-by: Signed-off-by: Nicholas A. Bellinger <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/target/target_core_cdb.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/target/target_core_cdb.c
+++ b/drivers/target/target_core_cdb.c
@@ -667,7 +667,13 @@ target_emulate_readcapacity(struct se_cm
{
struct se_device *dev = SE_DEV(cmd);
unsigned char *buf = cmd->t_task->t_task_buf;
- u32 blocks = dev->transport->get_blocks(dev);
+ unsigned long long blocks_long = dev->transport->get_blocks(dev);
+ u32 blocks;
+
+ if (blocks_long >= 0x00000000ffffffff)
+ blocks = 0xffffffff;
+ else
+ blocks = (u32)blocks_long;
buf[0] = (blocks >> 24) & 0xff;
buf[1] = (blocks >> 16) & 0xff;
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.38/target-fix-volume-size-misreporting-for-volumes-2tb.patch
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