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Date: Fri, 29 May 2020 22:00:51 -0700 From: Sultan Alsawaf <sultan@...neltoast.com> To: unlisted-recipients:; (no To-header on input) Cc: Ingo Molnar <mingo@...hat.com>, Thomas Gleixner <tglx@...utronix.de>, Julia Cartwright <julia@...com>, Daniel Bristot de Oliveira <bristot@...hat.com>, "Srivatsa S. Bhat (VMware)" <srivatsa@...il.mit.edu>, Marc Zyngier <maz@...nel.org>, Sultan Alsawaf <sultan@...neltoast.com>, linux-kernel@...r.kernel.org Subject: [PATCH] locking/Kconfig: Don't forcefully uninline spin_unlock for PREEMPT From: Sultan Alsawaf <sultan@...neltoast.com> This change was originally done in 2005 without any justification in commit bda98685b855 ("[PATCH] x86: inline spin_unlock if !CONFIG_DEBUG_SPINLOCK and !CONFIG_PREEMPT"). Perhaps the reasoning at the time was that PREEMPT was still considered unstable and needed extra debugging; however, this is no longer the case, so remove the artificial limitation. Signed-off-by: Sultan Alsawaf <sultan@...neltoast.com> --- kernel/Kconfig.preempt | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt index bf82259cff96..5a9e0409c844 100644 --- a/kernel/Kconfig.preempt +++ b/kernel/Kconfig.preempt @@ -39,7 +39,6 @@ config PREEMPT bool "Preemptible Kernel (Low-Latency Desktop)" depends on !ARCH_NO_PREEMPT select PREEMPTION - select UNINLINE_SPIN_UNLOCK if !ARCH_INLINE_SPIN_UNLOCK help This option reduces the latency of the kernel by making all kernel code (that is not executing in a critical section) -- 2.26.2
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