linux/arch/cris/include/asm/cacheflush.h, branch v3.2.35Linux kernel source treehttps://git.amat.us/linux/atom/arch/cris/include/asm/cacheflush.h?h=v3.2.352009-11-26T08:16:19Zblock: add helpers to run flush_dcache_page() against a bio and a request's pages2009-11-26T08:16:19ZIlya Loginovisloginov@gmail.com2009-11-26T08:16:19Zurn:sha1:2d4dc890b5c8fabd818a8586607e6843c4375e62
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>
[CRIS] Move header files from include to arch/cris/include.2008-10-29T16:29:44ZJesper Nilssonjesper.nilsson@axis.com2008-10-21T15:45:58Zurn:sha1:556dcee7b829e5c350c3ffdbdb87a8b15aa3c5d3
Change all users of header files to correct path.
Remove some unneeded headers for arch-v32.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>