Christoph Hellwig 67efc92580 block: allow large discard requests ... Currently we set the bio size to the byte equivalent of the blocks to be trimmed when submitting the initial DISCARD ioctl. That means it is subject to the max_hw_sectors limitation of the HBA which is much lower than the size of a DISCARD request we can support. Add a separate max_discard_sectors tunable to limit the size for discard requests. We limit the max discard request size in bytes to 32bit as that is the limit for bio->bi_size. This could be much larger if we had a way to pass that information through the block layer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2009-10-01 21:19:34 +02:00
..
as-iosched.c	percpu: clean up percpu variable definitions	2009-06-24 15:13:48 +09:00
blk-barrier.c	block: allow large discard requests	2009-10-01 21:19:34 +02:00
blk-core.c	block: allow large discard requests	2009-10-01 21:19:34 +02:00
blk-exec.c	block: don't set REQ_NOMERGE unnecessarily	2009-04-28 07:37:33 +02:00
blk-integrity.c	block: fix improper kobject release in blk_integrity_unregister	2009-07-28 09:11:14 +02:00
blk-ioc.c	block: prevent possible io_context->refcount overflow	2009-06-10 23:07:15 +02:00
blk-iopoll.c	block: use interrupts disabled version of raise_softirq_irqoff()	2009-09-11 14:33:32 +02:00
blk-map.c	block: Use accessor functions for queue limits	2009-05-22 23:22:54 +02:00
blk-merge.c	Seperate read and write statistics of in_flight requests	2009-09-14 08:24:52 +02:00
blk-settings.c	block: allow large discard requests	2009-10-01 21:19:34 +02:00
blk-softirq.c	generic-ipi: remove CSD_FLAG_WAIT	2009-02-25 14:13:44 +01:00
blk-sysfs.c	Add missing blk_trace_remove_sysfs to be in pair with blk_trace_init_sysfs	2009-10-01 21:15:46 +02:00
blk-tag.c	block: change the tag sync vs async restriction logic	2009-05-20 08:54:31 +02:00
blk-timeout.c	block: clean up misc stuff after block layer timeout conversion	2009-04-28 07:37:34 +02:00
blk.h	block: implement mixed merge of different failfast requests	2009-09-11 14:33:30 +02:00
bsg.c	Driver-Core: extend devnode callbacks to provide permissions	2009-09-19 12:50:38 -07:00
cfq-iosched.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-09-15 09:39:44 -07:00
compat_ioctl.c	Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block	2009-06-11 11:10:35 -07:00
deadline-iosched.c	block: convert to pos and nr_sectors accessors	2009-05-11 09:50:54 +02:00
elevator.c	bio: first step in sanitizing the bio->bi_rw flag testing	2009-09-11 14:33:31 +02:00
genhd.c	Driver-Core: extend devnode callbacks to provide permissions	2009-09-19 12:50:38 -07:00
ioctl.c	block: use blkdev_issue_discard in blk_ioctl_discard	2009-09-14 08:24:53 +02:00
Kconfig	Make SCSI SG v4 driver enabled by default and remove EXPERIMENTAL dependency, since udev depends on BSG	2009-08-04 22:10:17 +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	block: add blk-iopoll, a NAPI like approach for block devices	2009-09-11 14:33:31 +02:00
noop-iosched.c	block: get rid of elevator_t typedef	2008-12-29 08:29:50 +01:00
scsi_ioctl.c	block: call blk_scsi_ioctl_init()	2009-07-10 20:31:53 +02:00