Tejun Heo cb98fc8bb9 [BLOCK] Reimplement elevator switch ... This patch reimplements elevator switch. This patch assumes generic dispatch queue patchset is applied. * Each request is tagged with REQ_ELVPRIV flag if it has its elevator private data set. * Requests which doesn't have REQ_ELVPRIV flag set never enter iosched. They are always directly back inserted to dispatch queue. Of course, elevator_put_req_fn is called only for requests which have its REQ_ELVPRIV set. * Request queue maintains the current number of requests which have its elevator data set (elevator_set_req_fn called) in q->rq->elvpriv. * If a request queue has QUEUE_FLAG_BYPASS set, elevator private data is not allocated for new requests. To switch to another iosched, we set QUEUE_FLAG_BYPASS and wait until elvpriv goes to zero; then, we attach the new iosched and clears QUEUE_FLAG_BYPASS. New implementation is much simpler and main code paths are less cluttered, IMHO. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>		2005-10-28 08:48:12 +02:00
..
acpi
asm-alpha	[PATCH] alpha: atomic dependency fix	2005-10-25 09:32:46 -07:00
asm-arm	[ARM] 3032/1: sparse: complains about generic_fls() prototype in asm-arm/bitops.h	2005-10-26 15:04:21 +01:00
asm-arm26
asm-cris
asm-frv
asm-generic
asm-h8300
asm-i386
asm-ia64
asm-m32r
asm-m68k
asm-m68knommu
asm-mips
asm-parisc
asm-powerpc	[PATCH] ppc32: Fix timekeeping	2005-10-12 08:24:47 -07:00
asm-ppc	[PATCH] ppc32: Tell userland about lack of standard TB	2005-10-12 08:24:47 -07:00
asm-ppc64
asm-s390
asm-sh
asm-sh64
asm-sparc
asm-sparc64	[SPARC64]: Eliminate PCI IOMMU dma mapping size limit.	2005-10-13 22:15:24 -07:00
asm-um
asm-v850
asm-x86_64	Revert "x86-64: Avoid unnecessary double bouncing for swiotlb"	2005-10-27 16:28:39 -07:00
asm-xtensa
linux	[BLOCK] Reimplement elevator switch	2005-10-28 08:48:12 +02:00
math-emu
media
mtd
net	[LLC]: Strip RIF flag from source MAC address	2005-10-25 21:34:39 -02:00
pcmcia
rdma
rxrpc
scsi
sound
video