| From | Gregory Haskins <> | Subject | [PATCH [RT] 04/14] disable PREEMPT_SPINLOCK_WAITERS when x86 ticket/fifo spins are in use | Date | Thu, 21 Feb 2008 10:26:46 -0500 |
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Preemptible spinlock waiters effectively bypasses the benefits of a fifo spinlock. Since we now have fifo spinlocks for x86 enabled, disable the preemption feature on x86.
Signed-off-by: Gregory Haskins <ghaskins@novell.com> CC: Nick Piggin <npiggin@suse.de> ---
arch/x86/Kconfig | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 8d15667..d5b9a67 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -20,6 +20,7 @@ config X86 bool default y select HAVE_MCOUNT + select DISABLE_PREEMPT_SPINLOCK_WAITERS config GENERIC_TIME bool
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