Ilya Loginov 2d4dc890b5 block: add helpers to run flush_dcache_page() against a bio and a request's pages ... Mtdblock driver doesn't call flush_dcache_page for pages in request. So, this causes problems on architectures where the icache doesn't fill from the dcache or with dcache aliases. The patch fixes this. The ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE symbol was introduced to avoid pointless empty cache-thrashing loops on architectures for which flush_dcache_page() is a no-op. Every architecture was provided with this flush pages on architectires where ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE is equal 1 or do nothing otherwise. See "fix mtd_blkdevs problem with caches on some architectures" discussion on LKML for more information. Signed-off-by: Ilya Loginov <isloginov@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Peter Horton <phorton@bitbox.co.uk> Cc: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2009-11-26 09:16:19 +01:00
..
arch-v10	const: constify remaining file_operations	2009-10-01 16:11:11 -07:00
arch-v32	const: constify remaining file_operations	2009-10-01 16:11:11 -07:00
boot	CRIS: Merge machine dependent boot/compressed and boot/rescue	2009-04-21 11:44:57 +02:00
configs	CRIS: proper defconfig setup	2008-10-13 21:34:55 +02:00
include	block: add helpers to run flush_dcache_page() against a bio and a request's pages	2009-11-26 09:16:19 +01:00
kernel	Merge branch 'for-linus' of git://repo.or.cz/cris-mirror	2009-09-24 17:08:56 -07:00
mm	arches: drop superfluous casts in nr_free_pages() callers	2009-09-22 07:17:34 -07:00
Kconfig	trivial: fix typos/grammar errors in Kconfig texts	2009-03-30 15:22:01 +02:00
Kconfig.debug
Makefile	arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0	2009-09-20 12:28:22 +02:00