From: Ingo Molnar <mingo@elte.hu> The remove-bkl patch is looking good so far. The patch below extends its reach by enabling it everywhere where the BKL is used, i.e. not only on PREEMPT (UP or SMP) but on !PREEMPT+SMP kernels too. I have test-compiled and test-booted x86 and x64 on SMP+!PREEMPT, everything is working fine (as expected). Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> --- 25-akpm/arch/i386/Kconfig | 2 +- 25-akpm/arch/x86_64/Kconfig | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff -puN arch/i386/Kconfig~enable-preempt_bkl-on-smp-too arch/i386/Kconfig --- 25/arch/i386/Kconfig~enable-preempt_bkl-on-smp-too 2004-10-03 16:27:51.424456032 -0700 +++ 25-akpm/arch/i386/Kconfig 2004-10-03 16:27:51.431454968 -0700 @@ -509,7 +509,7 @@ config PREEMPT config PREEMPT_BKL bool "Preempt The Big Kernel Lock" - depends on PREEMPT + depends on PREEMPT || SMP default y help This option reduces the latency of the kernel by making the diff -puN arch/x86_64/Kconfig~enable-preempt_bkl-on-smp-too arch/x86_64/Kconfig --- 25/arch/x86_64/Kconfig~enable-preempt_bkl-on-smp-too 2004-10-03 16:27:51.425455880 -0700 +++ 25-akpm/arch/x86_64/Kconfig 2004-10-03 16:27:51.429455272 -0700 @@ -245,7 +245,7 @@ config PREEMPT config PREEMPT_BKL bool "Preempt The Big Kernel Lock" - depends on PREEMPT + depends on PREEMPT || SMP default y help This option reduces the latency of the kernel by making the _