Tejun Heo 4913efe456 block: deprecate barrier and replace blk_queue_ordered() with blk_queue_flush() ... Barrier is deemed too heavy and will soon be replaced by FLUSH/FUA requests. Deprecate barrier. All REQ_HARDBARRIERs are failed with -EOPNOTSUPP and blk_queue_ordered() is replaced with simpler blk_queue_flush(). blk_queue_flush() takes combinations of REQ_FLUSH and FUA. If a device has write cache and can flush it, it should set REQ_FLUSH. If the device can handle FUA writes, it should also set REQ_FUA. All blk_queue_ordered() users are converted. * ORDERED_DRAIN is mapped to 0 which is the default value. * ORDERED_DRAIN_FLUSH is mapped to REQ_FLUSH. * ORDERED_DRAIN_FLUSH_FUA is mapped to REQ_FLUSH | REQ_FUA. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Boaz Harrosh <bharrosh@panasas.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: David S. Miller <davem@davemloft.net> Cc: Alasdair G Kergon <agk@redhat.com> Cc: Pierre Ossman <drzeus@drzeus.cx> Cc: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>		2010-09-10 12:35:36 +02:00
..
dasd_3990_erp.c	[S390] dasd: add dynamic pav toleration	2010-05-17 10:00:16 +02:00
dasd_alias.c	[S390] dasd: remove uid from devmap	2010-05-17 10:00:16 +02:00
dasd_devmap.c	[S390] dasd: tunable missing interrupt handler	2010-08-09 18:12:54 +02:00
dasd_diag.c	[S390] dasd: tunable missing interrupt handler	2010-08-09 18:12:54 +02:00
dasd_diag.h
dasd_eckd.c	[S390] dasd: tunable missing interrupt handler	2010-08-09 18:12:54 +02:00
dasd_eckd.h	[S390] dasd: tunable missing interrupt handler	2010-08-09 18:12:54 +02:00
dasd_eer.c	s390: remove WARN_ON for misc_deregister() failures	2010-08-09 20:45:06 -07:00
dasd_erp.c
dasd_fba.c	[S390] dasd: tunable missing interrupt handler	2010-08-09 18:12:54 +02:00
dasd_fba.h
dasd_genhd.c	[S390] dasd: automatic recognition of read-only devices	2010-03-08 12:26:27 +01:00
dasd_int.h	[S390] dasd: tunable missing interrupt handler	2010-08-09 18:12:54 +02:00
dasd_ioctl.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
dasd_proc.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
dasd.c	block: deprecate barrier and replace blk_queue_ordered() with blk_queue_flush()	2010-09-10 12:35:36 +02:00
dcssblk.c	block: push down BKL into .open and .release	2010-08-07 18:25:34 +02:00
Kconfig
Makefile
xpram.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00