[PATCH] atomic_long_t & include/asm-generic/atomic.h V2
authorChristoph Lameter <clameter@engr.sgi.com>
Fri, 6 Jan 2006 08:11:20 +0000 (00:11 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 6 Jan 2006 16:33:29 +0000 (08:33 -0800)
commitd3cb487149bd706aa6aeb02042332a450978dc1c
tree69051e0f9853314cf275e4e800faad950e3053c3
parent070f80326a215d8e6c4fd6f175e28eb446c492bc
[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>
24 files changed:
include/asm-alpha/atomic.h
include/asm-arm/atomic.h
include/asm-arm26/atomic.h
include/asm-cris/atomic.h
include/asm-frv/atomic.h
include/asm-generic/atomic.h [new file with mode: 0644]
include/asm-h8300/atomic.h
include/asm-i386/atomic.h
include/asm-ia64/atomic.h
include/asm-m32r/atomic.h
include/asm-m68k/atomic.h
include/asm-m68knommu/atomic.h
include/asm-mips/atomic.h
include/asm-parisc/atomic.h
include/asm-powerpc/atomic.h
include/asm-s390/atomic.h
include/asm-sh/atomic.h
include/asm-sh64/atomic.h
include/asm-sparc/atomic.h
include/asm-sparc64/atomic.h
include/asm-v850/atomic.h
include/asm-x86_64/atomic.h
include/asm-xtensa/atomic.h
include/linux/sched.h