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| author |   Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2006-12-12 17:14:56 +0000 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-13 09:27:08 -0800 |
| commit | bcd022801ee514e28c32837f0b3ce18c775f1a7b (patch) | |
| tree | 6230fbec80e9f1c7580efa685ded26f638f81ef0 /include/asm-cris/cacheflush.h | |
| parent | [PATCH] Pass vma argument to copy_user_highpage(). (diff) | |
| download | linux-dev-bcd022801ee514e28c32837f0b3ce18c775f1a7b.tar.xz linux-dev-bcd022801ee514e28c32837f0b3ce18c775f1a7b.zip | |
[PATCH] MIPS: Fix COW D-cache aliasing on fork
Provide a custom copy_user_highpage() to deal with aliasing issues on
MIPS. It uses kmap_coherent() to map an user page for kernel with same
color. Rewrite copy_to_user_page() and copy_from_user_page() with the
new interfaces to avoid extra cache flushing.
The main part of this patch was originally written by Ralf Baechle;
Atushi Nemoto did the the debugging.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-cris/cacheflush.h')
0 files changed, 0 insertions, 0 deletions