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| author |   Ralf Baechle <ralf@linux-mips.org> | 2006-12-12 17:14:57 +0000 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-13 09:27:08 -0800 |
| commit | ec8c0446b6e2b67b5c8813eb517f4bf00efa99a9 (patch) | |
| tree | e7c12d7c486c958a5e38888b41cfcd6a558f1aff /include/asm-m68k | |
| parent | [PATCH] MIPS: Fix COW D-cache aliasing on fork (diff) | |
| download | linux-dev-ec8c0446b6e2b67b5c8813eb517f4bf00efa99a9.tar.xz linux-dev-ec8c0446b6e2b67b5c8813eb517f4bf00efa99a9.zip | |
[PATCH] Optimize D-cache alias handling on fork
Virtually index, physically tagged cache architectures can get away
without cache flushing when forking. This patch adds a new cache
flushing function flush_cache_dup_mm(struct mm_struct *) which for the
moment I've implemented to do the same thing on all architectures
except on MIPS where it's a no-op.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-m68k')
| -rw-r--r-- | include/asm-m68k/cacheflush.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-m68k/cacheflush.h b/include/asm-m68k/cacheflush.h index 24d3ff449135..16bf375fdbe1 100644 --- a/include/asm-m68k/cacheflush.h +++ b/include/asm-m68k/cacheflush.h @@ -89,6 +89,8 @@ static inline void flush_cache_mm(struct mm_struct *mm) __flush_cache_030(); } +#define flush_cache_dup_mm(mm) flush_cache_mm(mm) + /* flush_cache_range/flush_cache_page must be macros to avoid a dependency on linux/mm.h, which includes this file... */ static inline void flush_cache_range(struct vm_area_struct *vma, |