David Woodhouse e17fc0a1cc Allow elevators to sort/merge discard requests ... But blkdev_issue_discard() still emits requests which are interpreted as soft barriers, because naïve callers might otherwise issue subsequent writes to those same sectors, which might cross on the queue (if they're reallocated quickly enough). Callers still _can_ issue non-barrier discard requests, but they have to take care of queue ordering for themselves. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2008-10-09 08:56:02 +02:00
..
as-iosched.c	Use WARN() in block/	2008-07-26 12:00:07 -07:00
blk-barrier.c	Allow elevators to sort/merge discard requests	2008-10-09 08:56:02 +02:00
blk-core.c	Allow elevators to sort/merge discard requests	2008-10-09 08:56:02 +02:00
blk-exec.c	block: unexport blk_end_sync_rq	2008-07-15 21:21:45 +02:00
blk-integrity.c	block: integrity flags can't use bit ops on unsigned short	2008-07-03 13:21:15 +02:00
blk-ioc.c	cfq-iosched: fix RCU race in the cfq io_context destructor handling	2008-05-07 09:28:57 +02:00
blk-map.c	block/blk-map.c: use the new object_is_on_stack() helper	2008-07-26 12:00:02 -07:00
blk-merge.c	Allow elevators to sort/merge discard requests	2008-10-09 08:56:02 +02:00
blk-settings.c	Add 'discard' request handling	2008-10-09 08:56:01 +02:00
blk-sysfs.c	block: sysfs store function needs to grab queue_lock and use queue_flag_*()	2008-05-07 09:09:39 +02:00
blk-tag.c	block: remove unused ->busy part of the block queue tag map	2008-08-27 09:50:19 +02:00
blk.h	block: Block layer data integrity support	2008-07-03 13:21:13 +02:00
blktrace.c	blktrace: simplify flags handling in __blk_add_trace	2008-10-09 08:56:01 +02:00
bsg.c	block: move cmdfilter from gendisk to request_queue	2008-08-27 09:50:19 +02:00
cfq-iosched.c	cfq-iosched: get rid of enable_idle being unused warning	2008-07-03 13:21:14 +02:00
cmd-filter.c	block: disable sysfs parts of the disk command filter	2008-09-11 14:20:23 +02:00
compat_ioctl.c	Add BLKDISCARD ioctl to allow userspace to discard sectors	2008-10-09 08:56:02 +02:00
deadline-iosched.c	block: let elv_register() return void	2007-12-18 08:29:28 +01:00
elevator.c	Allow elevators to sort/merge discard requests	2008-10-09 08:56:02 +02:00
genhd.c	block: restore original behavior of /proc/partition when there's no partition	2008-09-01 08:55:10 +02:00
ioctl.c	Allow elevators to sort/merge discard requests	2008-10-09 08:56:02 +02:00
Kconfig	block: Block layer data integrity support	2008-07-03 13:21:13 +02:00
Kconfig.iosched	update I/O sched Kconfig help texts - CFQ is now default, not AS.	2007-02-17 20:08:22 +01:00
Makefile	allow userspace to modify scsi command filter on per device basis	2008-07-03 13:21:14 +02:00
noop-iosched.c	block: let elv_register() return void	2007-12-18 08:29:28 +01:00
scsi_ioctl.c	SG_IO block filter whitelist missing MMC SET READ AHEAD command	2008-10-09 08:56:00 +02:00