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Merge branch 'x86-percpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'x86-percpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, percpu: Collect hot percpu variables into one cacheline
  x86, percpu: Fix DECLARE/DEFINE_PER_CPU_PAGE_ALIGNED()
  x86, percpu: Add 'percpu_read_stable()' interface for cacheable accesses
This commit is contained in:
Linus Torvalds
2009-09-14 08:01:28 -07:00
parent 7dfd54a905 bdf977b374
commit 55e0715f61
7 changed files with 40 additions and 22 deletions
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8
include/linux/percpu-defs.h
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@@ -77,11 +77,13 @@
/*
* Declaration/definition used for per-CPU variables that must be page aligned.
*/
#define DECLARE_PER_CPU_PAGE_ALIGNED(type, name) \
DECLARE_PER_CPU_SECTION(type, name, ".page_aligned")
#define DECLARE_PER_CPU_PAGE_ALIGNED(type, name) \
DECLARE_PER_CPU_SECTION(type, name, ".page_aligned") \
__aligned(PAGE_SIZE)
#define DEFINE_PER_CPU_PAGE_ALIGNED(type, name) \
DEFINE_PER_CPU_SECTION(type, name, ".page_aligned")
DEFINE_PER_CPU_SECTION(type, name, ".page_aligned") \
__aligned(PAGE_SIZE)
/*
* Intermodule exports for per-CPU variables.