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authorRichard Weinberger <richard@nod.at>2012-03-25 23:00:04 +0200
committerIngo Molnar <mingo@kernel.org>2012-03-26 03:16:07 +0200
commit90e240142bd31ff10aeda5a280a53153f4eff004 (patch)
treeae612bacc2cfd2fedc4c5c22c29dd326f8b93ae7 /arch/x86/include/asm/idle.h
parentf5243d6de7ae232e1d81e44ae9756bbd8c988fcd (diff)
x86: Merge the x86_32 and x86_64 cpu_idle() functions
Both functions are mostly identical. The differences are: - x86_32's cpu_idle() makes use of check_pgt_cache(), which is a nop on both x86_32 and x86_64. - x86_64's cpu_idle() uses enter/__exit_idle/(), on x86_32 these function are a nop. - In contrast to x86_32, x86_64 calls rcu_idle_enter/exit() in the innermost loop because idle notifications need RCU. Calling these function on x86_32 also in the innermost loop does not hurt. So we can merge both functions. Signed-off-by: Richard Weinberger <richard@nod.at> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: paulmck@linux.vnet.ibm.com Cc: josh@joshtriplett.org Cc: tj@kernel.org Link: http://lkml.kernel.org/r/1332709204-22496-1-git-send-email-richard@nod.at Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/idle.h')
-rw-r--r--arch/x86/include/asm/idle.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/idle.h b/arch/x86/include/asm/idle.h
index f49253d7571..c5d1785373e 100644
--- a/arch/x86/include/asm/idle.h
+++ b/arch/x86/include/asm/idle.h
@@ -14,6 +14,7 @@ void exit_idle(void);
#else /* !CONFIG_X86_64 */
static inline void enter_idle(void) { }
static inline void exit_idle(void) { }
+static inline void __exit_idle(void) { }
#endif /* CONFIG_X86_64 */
void amd_e400_remove_cpu(int cpu);