diff options
| author |   Ingo Molnar <mingo@kernel.org> | 2014-02-02 09:45:39 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-02-02 09:45:39 +0100 |
| commit | eaa4e4fcf1b5c60e656d93242f7fe422173f25b2 (patch) | |
| tree | c05d5d6ca3f625d72a9d136b4c485d3dc9472089 /include/linux/compiler-intel.h | |
| parent | sched/numa: Turn some magic numbers into #defines (diff) | |
| parent | Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild (diff) | |
| download | linux-dev-eaa4e4fcf1b5c60e656d93242f7fe422173f25b2.tar.xz linux-dev-eaa4e4fcf1b5c60e656d93242f7fe422173f25b2.zip | |
Merge branch 'linus' into sched/core, to resolve conflicts
Conflicts:
kernel/sysctl.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/compiler-intel.h')
| -rw-r--r-- | include/linux/compiler-intel.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/compiler-intel.h b/include/linux/compiler-intel.h index dc1bd3dcf11f..5529c5239421 100644 --- a/include/linux/compiler-intel.h +++ b/include/linux/compiler-intel.h @@ -15,6 +15,7 @@ */ #undef barrier #undef RELOC_HIDE +#undef OPTIMIZER_HIDE_VAR #define barrier() __memory_barrier() @@ -23,6 +24,12 @@ __ptr = (unsigned long) (ptr); \ (typeof(ptr)) (__ptr + (off)); }) +/* This should act as an optimization barrier on var. + * Given that this compiler does not have inline assembly, a compiler barrier + * is the best we can do. + */ +#define OPTIMIZER_HIDE_VAR(var) barrier() + /* Intel ECC compiler doesn't support __builtin_types_compatible_p() */ #define __must_be_array(a) 0 |