kernel/git/stable/linux.git/drivers/block/ub.c, branch linux-2.6.27.y

block: add and use scsi_blk_cmd_ioctl

2012-02-11T14:40:54+00:00

commit 577ebb374c78314ac4617242f509e2f5e7156649 upstream. Introduce a wrapper around scsi_cmd_ioctl that takes a block device. The function will then be enhanced to detect partition block devices and, in that case, subject the ioctls to whitelisting. Cc: linux-scsi@vger.kernel.org Cc: Jens Axboe Cc: James Bottomley Signed-off-by: Paolo Bonzini Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman [bwh: Backport to 2.6.32 - adjust context] Signed-off-by: Ben Hutchings [wt: slightly changed the interface to match 2.6.27's scsi_cmd_ioctl() which still needs the file pointer but has no mode parameter]. Signed-off-by: Willy Tarreau

ub: Cosmetics

2008-05-02T17:25:52+00:00

Fix a few comments and printk statements. Signed-off-by: Pete Zaitcev Signed-off-by: Greg Kroah-Hartman

ub: Ignore bad residue

2008-05-02T17:25:52+00:00

I hoped to continue to ignore this problem or use libusual, but these days it's simpler to work around than to deal with it. Let's attempt to use bad residue devices and hope that upper level integrity checks catch any problems (e.g. please use sha1sum on your backups). Signed-off-by: Pete Zaitcev Signed-off-by: Greg Kroah-Hartman

ub: Tune retries

2008-05-02T17:25:52+00:00

Make ub to fail faster in hopeless cases. Signed-off-by: Pete Zaitcev Signed-off-by: Greg Kroah-Hartman

ub: Fix timeouts

2008-05-02T17:25:52+00:00

The wodim says: "close track/session scsi sendcmd: cmd timeout after 5.000 (480) s" This happened because we ignored the supplied timeout and used 5s. It's not completely correct to apply a timeout meant for the complete command to any single URB, but we don't have many URBs per command, so this is simple and works. Signed-off-by: Pete Zaitcev Signed-off-by: Greg Kroah-Hartman

block: make queue flags non-atomic

2008-04-29T12:48:33+00:00

We can save some atomic ops in the IO path, if we clearly define the rules of how to modify the queue flags. Signed-off-by: Jens Axboe

ub: remove BUG() after __blk_end_request and fix the condition causing it

2008-04-09T01:25:52+00:00

When __blk_end_request returns nonzero, it means that the request was not completely processed and some BIOs are still attached. Since we have dequeued it by that time, it means leaking requests and hanging processes, which is why BUG() was in there. In ub this happens if a packet request ends normally, but with residue (e.g. when scsi_id issues INQUIRY). The fix is to make sure that arguments passed to __blk_end_request are correct: the full request length and not just transferred length. The transferred length is indicated to applications by adjusting rq->data_len with old, unchanged code outside of this patch. Signed-off-by: Pete Zaitcev Cc: Kiyoshi Ueda Cc: Greg KH Cc: Boaz Harrosh Cc: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ub: fix up the conversion to sg_init_table()

2008-02-09T19:08:33+00:00

Signed-off-by: Pete Zaitcev Cc: "Oliver Pinter" Cc: FUJITA Tomonori Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

USB: Remove unnecessary zeroing from ub

2008-02-01T22:34:47+00:00

These zeroings were taken from usb-storage long time ago. I examined the submission paths and usb_fill_bulk_urb and found them unnecessary. Signed-off-by: Pete Zaitcev Signed-off-by: Greg Kroah-Hartman

blk_end_request: changing ub (take 4)

2008-01-28T09:37:17+00:00

This patch converts ub to use blk_end_request interfaces. Related 'uptodate' arguments are converted to 'error'. Cc: Pete Zaitcev Signed-off-by: Kiyoshi Ueda Signed-off-by: Jun'ichi Nomura Signed-off-by: Jens Axboe