linux/drivers/block, branch v2.6.27-rc4

brd: fix name argument of unregister_blkdev()

2008-08-20T22:40:30Z

The name of brd block device is "ramdisk", it's not "brd". (The block device is registered by register_blkdev(RAMDISK_MAJOR, "ramdisk") So it should be unregistered by unregister_blkdev(RAMDISK_MAJOR, "ramdisk") Signed-off-by: Akinobu Mita Acked-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nbd: fix memory leak of nbd_dev array

2008-08-20T22:40:30Z

We leak the memory allocated for the nbd_dev array at multiple places. Fix them by either adding a kfree() or by rearranging code to return before we allocate the memory. Signed-off-by: Sven Wegener Cc: Paul Clements Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

xen-blkfront.c: make blkif_ioctl() static

2008-08-06T10:30:04Z

This patch makes the needlessly global blkif_ioctl() static. Signed-off-by: Adrian Bunk Acked-by: Jeremy Fitzhardinge Signed-off-by: Jens Axboe

cciss: fix bug if scsi tape support is disabled

2008-08-06T10:30:04Z

Bug fix. If SCSI tape support is turned off we get an implicit declaration of cciss_unregister_scsi error in cciss_remove_one. Signed-off-by: Mike Miller Signed-off-by: Stephen M. Cameron Signed-off-by: Jens Axboe

cciss: add support for multi lun tape devices

2008-08-06T10:30:04Z

This patch adds support for multi-lun devices in a SAS environment. It's required for the support of media changers. Signed-off-by: Stephen M. Cameron Signed-off-by: Mike Miller Signed-off-by: Jens Axboe

cciss: change the way we notify scsi midlayer of tape drives

2008-08-06T10:30:04Z

This patch changes way we notify the scsi layer that something has changed on the SCSI tape side of the driver. The user can now just tell the driver to rescan a particular controller rather than having to know the SCSI nexus to echo into the SCSI mid-layer. Signed-off-by: Stephen M. Cameron Signed-off-by: Mike Miller Signed-off-by: Jens Axboe

cciss: fix negative logical drive count in procfs

2008-08-06T10:30:03Z

This patch fixes a problem where the logical volume count may go negative. In some instances if several logical are configured on a controller and all of them are deleted using the online utilities the volume count in /proc may go negative with no way get it correct again. Signed-off-by: Stephen M. Cameron Signed-off-by: Mike Miller Signed-off-by: Jens Axboe

cciss: remove redundant code

2008-08-06T10:30:03Z

This patch removes redundant code where ever logical volumes are added or removed. It adds 3 new functions that are called instead of having the same code spread throughout the driver. It also removes the cciss_getgeometry function. The patch is fairly complex but we haven't figured out how to make it any simpler and still do everything that needs to be done. Some of the complexity comes from having to special case booting from cciss. Otherwise the gendisk doesn't get added in time and the switchroot will fail. Signed-off-by: Stephen M. Cameron Signed-off-by: Mike Miller Signed-off-by: Jens Axboe

cciss: make rebuild_lun_table behave better

2008-08-06T10:30:03Z

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 Signed-off-by: Mike Miller Signed-off-by: Jens Axboe

cciss: return -EFAULT if copy_from_user() fails

2008-08-06T10:30:03Z

Return -EFAULT instead of -ENOMEM if copy_from_user() fails. Signed-off-by: Nikanth Karthikesan Acked-by: Mike Miller Signed-off-by: Jens Axboe