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authorMike Miller <mike.miller@hp.com>2008-08-04 11:54:51 +0200
committerJens Axboe <jens.axboe@oracle.com>2008-08-06 12:30:03 +0200
commita72da29b6cbc5cf918567f2a0d76df6871e94b01 (patch)
tree1ec0caea10895d9265ee7769cffea09e808c378e /drivers/block/cciss.h
parentf7108f91cdcaca07c6a99777b2724093294f36ee (diff)
cciss: make rebuild_lun_table behave better
This patch makes the rebuild_lun_table smart enough to not rip a logical volume out from under the OS. Without this fix if a customer is running hpacucli to monitor their storage the driver will blindly remove and re-add the disks whenever the utility calls the CCISS_REGNEWD ioctl. Unfortunately, both hpacucli and ACUXE call the ioctl repeatedly. Customers have reported IO coming to a standstill. Calling the ioctl is the problem, this patch is the fix. Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net> Signed-off-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/block/cciss.h')
-rw-r--r--drivers/block/cciss.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index b70988dd33ec..24a7efa993ab 100644
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -39,6 +39,8 @@ typedef struct _drive_info_struct
*to prevent it from being opened or it's queue
*from being started.
*/
+ __u8 serial_no[16]; /* from inquiry page 0x83, */
+ /* not necc. null terminated. */
} drive_info_struct;
#ifdef CONFIG_CISS_SCSI_TAPE