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| author | Christoph Lameter <clameter@engr.sgi.com> | 2006-01-06 11:11:20 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 19:33:29 +0300 |
| commit | d3cb487149bd706aa6aeb02042332a450978dc1c (patch) | |
| tree | 69051e0f9853314cf275e4e800faad950e3053c3 /include/asm-x86_64/atomic.h | |
| parent | 070f80326a215d8e6c4fd6f175e28eb446c492bc (diff) | |
| download | linux-d3cb487149bd706aa6aeb02042332a450978dc1c.tar.xz | |
[PATCH] atomic_long_t & include/asm-generic/atomic.h V2
Several counters already have the need to use 64 atomic variables on 64 bit
platforms (see mm_counter_t in sched.h). We have to do ugly ifdefs to fall
back to 32 bit atomic on 32 bit platforms.
The VM statistics patch that I am working on will also make more extensive
use of atomic64.
This patch introduces a new type atomic_long_t by providing definitions in
asm-generic/atomic.h that works similar to the c "long" type. Its 32 bits
on 32 bit platforms and 64 bits on 64 bit platforms.
Also cleans up the determination of the mm_counter_t in sched.h.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-x86_64/atomic.h')
| -rw-r--r-- | include/asm-x86_64/atomic.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-x86_64/atomic.h b/include/asm-x86_64/atomic.h index 50db9f39274f..72eb071488c7 100644 --- a/include/asm-x86_64/atomic.h +++ b/include/asm-x86_64/atomic.h @@ -424,4 +424,5 @@ __asm__ __volatile__(LOCK "orl %0,%1" \ #define smp_mb__before_atomic_inc() barrier() #define smp_mb__after_atomic_inc() barrier() +#include <asm-generic/atomic.h> #endif |