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[SCSI] target: Fix volume size misreporting for volumes > 2TB 

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 <bjarvismn@gmail.com>
Signed-off-by: Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Nicholas Bellinger 2011-03-02 15:52:51 -08:00 committed by James Bottomley
parent 853e2bd210
commit 904f0bc482
1 changed files with 7 additions and 1 deletions
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8
drivers/target/target_core_cdb.c
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@ -667,7 +667,13 @@ target_emulate_readcapacity(struct se_cmd *cmd)
{
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;