Messages in this thread | | | Date | Thu, 30 Jan 2014 14:25:56 +0530 | From | Raghavendra K T <> | Subject | Re: [PATCH v3 0/2] qspinlock: Introducing a 4-byte queue spinlock |
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On 01/28/2014 11:49 PM, Waiman Long wrote: > v2->v3: > - Simplify the code by using numerous mode only without an unfair option. > - Use the latest smp_load_acquire()/smp_store_release() barriers. > - Move the queue spinlock code to kernel/locking. > - Make the use of queue spinlock the default for x86-64 without user > configuration. > - Additional performance tuning. >
Could you please point me to any dependency patches I am missing? I am getting the compilation error (latest linus tree with 9b0cd304f26b9fca140de15deeac2bf357d1f388)
Got something like below
make[1]: Nothing to be done for `all'. CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h make[1]: Nothing to be done for `relocs'. CC kernel/bounds.s In file included from include/asm-generic/getorder.h:7:0, from /test/master/arch/x86/include/asm/page.h:71, from /test/master/arch/x86/include/asm/processor.h:17, from /test/master/arch/x86/include/asm/atomic.h:6, from include/linux/atomic.h:4, from include/asm-generic/qspinlock.h:22, from /test/master/arch/x86/include/asm/spinlock_types.h:15, from /test/master/arch/x86/include/asm/paravirt_types.h:331, from /test/master/arch/x86/include/asm/ptrace.h:65, from /test/master/arch/x86/include/asm/alternative.h:8, from /test/master/arch/x86/include/asm/bitops.h:16, from include/linux/bitops.h:33, from include/linux/kernel.h:10, from include/asm-generic/bug.h:13, from /test/master/arch/x86/include/asm/bug.h:38, from include/linux/bug.h:4, from include/linux/page-flags.h:9, from kernel/bounds.c:9: include/linux/log2.h: In function ‘__ilog2_u32’: include/linux/log2.h:34:2: error: implicit declaration of function ‘fls’ [-Werror=implicit-function-declaration] include/linux/log2.h: In function ‘__ilog2_u64’: include/linux/log2.h:42:2: error: implicit declaration of function ‘fls64’ [-Werror=implicit-function-declaration] include/linux/log2.h: In function ‘__roundup_pow_of_two’: . . [trimmed]
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