From: Roland Dreier <roland@xxxxxxxxxxxxxxx>
When NUMBER OF LOGICAL BLOCKS is 0, WRITE SAME is supposed to write
all the blocks from the specified LBA through the end of the device.
However, dev->transport->get_blocks(dev) (perhaps confusingly) returns
the last valid LBA rather than the number of blocks, so the correct
number of blocks to write starting with lba is
dev->transport->get_blocks(dev) - lba + 1
Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
---
drivers/target/target_core_sbc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 06e646f..a9dd946 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -118,7 +118,7 @@ int spc_get_write_same_sectors(struct se_cmd *cmd)
return num_blocks;
return cmd->se_dev->transport->get_blocks(cmd->se_dev) -
- cmd->t_task_lba;
+ cmd->t_task_lba + 1;
}
EXPORT_SYMBOL(spc_get_write_same_sectors);
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe target-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
