linux/block/ioctl.c, branch v2.6.32.59

block: Topology ioctls

2009-10-03T18:52:01Z

Not all users of the topology information want to use libblkid. Provide the topology information through bdev ioctls. Also clarify sector size comments for existing BLK ioctls. Signed-off-by: Martin K. Petersen Signed-off-by: Jens Axboe

block: use blkdev_issue_discard in blk_ioctl_discard

2009-09-14T06:24:53Z

blk_ioctl_discard duplicates large amounts of code from blkdev_issue_discard, the only difference between the two is that blkdev_issue_discard needs to send a barrier discard request and blk_ioctl_discard a non-barrier one, and blk_ioctl_discard needs to wait on the request. To facilitates this add a flags argument to blkdev_issue_discard to control both aspects of the behaviour. This will be very useful later on for using the waiting funcitonality for other callers. Based on an earlier patch from Matthew Wilcox . Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: Use accessor functions for queue limits

2009-05-22T21:22:54Z

Convert all external users of queue limits to using wrapper functions instead of poking the request queue variables directly. Signed-off-by: Martin K. Petersen Signed-off-by: Jens Axboe

block: Do away with the notion of hardsect_size

2009-05-22T21:22:54Z

Until now we have had a 1:1 mapping between storage device physical block size and the logical block sized used when addressing the device. With SATA 4KB drives coming out that will no longer be the case. The sector size will be 4KB but the logical block size will remain 512-bytes. Hence we need to distinguish between the physical block size and the logical ditto. This patch renames hardsect_size to logical_block_size. Signed-off-by: Martin K. Petersen Signed-off-by: Jens Axboe

block: Remove code handling bio_alloc failure with __GFP_WAIT

2009-04-15T10:10:12Z

Remove code handling bio_alloc failure with __GFP_WAIT. GFP_KERNEL implies __GFP_WAIT. Signed-off-by: Nikanth Karthikesan Signed-off-by: Jens Axboe

block: don't take lock on changing ra_pages

2008-12-29T07:28:43Z

There's no need to take queue_lock or kernel_lock when modifying bdi->ra_pages. So remove them. Also remove out of date comment for queue_max_sectors_store(). Signed-off-by: Wu Fengguang Signed-off-by: Jens Axboe

block: make add_partition() return pointer to hd_struct

2008-11-18T14:08:56Z

Make add_partition() return pointer to the new hd_struct on success and ERR_PTR() value on failure. This change will be used to fix md autodetection bug. Signed-off-by: Tejun Heo Cc: Neil Brown Signed-off-by: Jens Axboe

[PATCH] kill the rest of struct file propagation in block ioctls

2008-10-21T11:49:14Z

Now we can switch blkdev_ioctl() block_device/mode Signed-off-by: Al Viro

[PATCH] get rid of struct file use in blkdev_ioctl() BLKBSZSET

2008-10-21T11:49:12Z

We need to do bd_claim() only if file hadn't been opened with O_EXCL and then we have no need to use file itself as owner. Signed-off-by: Al Viro

[PATCH] get rid of blkdev_locked_ioctl()

2008-10-21T11:49:10Z

Most of that stuff doesn't need BKL at all; expand in the (only) caller, merge the switch into one there and leave BKL only around the stuff that might actually need it. Signed-off-by: Al Viro