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Date: Fri, 23 Jan 2015 13:36:39 +0800 From: Jiang Liu <jiang.liu@...ux.intel.com> To: Thomas Gleixner <tglx@...utronix.de> Cc: Jiang Liu <jiang.liu@...ux.intel.com>, Borislav Petkov <bp@...en8.de>, Tony Luck <tony.luck@...el.com>, linux-kernel@...r.kernel.org Subject: [Resend Patch v4 00/16] Kill SMP single function call interrupt This patch set has been hanging around for more than one year since v3. Resend for collecting more Acks targetting v3.20 merging window. Patches for ARC, Hexagon, Metag, MIPS and PARISC has been merged. Gained Acks for Tile, Xen, ARM64 and S390. Since commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic similar to smp_call_function_single()", single and multiple (mask version) cross CPU function calls are handled in the same way, and generic_smp_call_function_interrupt() becomes an aliases of generic_smp_call_function_single_interrupt(), so only one interrupt is needed for arch code to support generic SMP function call interfaces. This patch series simplifies arch code by killing the redundant interrupt for cross CPU function calls. We choose to keep generic_smp_call_function_interrupt() instead of generic_smp_call_function_single_interrupt() because the former is more generic. Jiang Liu (16): smp, alpha: Kill SMP single function call interrupt smp, ARM: Kill SMP single function call interrupt smp, ARM64: Kill SMP single function call interrupt smp, IA64: Kill SMP single function call interrupt smp, m32r: Kill SMP single function call interrupt smp, mn10300: Kill SMP single function call interrupt smp, mn10300: Enable arch_send_call_function_ipi_mask() smp, sh: Kill SMP single function call interrupt smp, sparc64: Kill SMP single function call interrupt smp, sparc: Kill SMP single function call interrupt smp, x86, xen: Kill SMP single function call interrupt smp, x86: Kill SMP single function call interrupt smp, tile: Kill SMP single function call interrupt smp, s390: Kill SMP single function call interrupt smp: Cleanup unsued generic_smp_call_function_single_interrupt() smp, trivial: Remove unused function prototype from smp_boot.h arch/alpha/kernel/smp.c | 8 +------ arch/arm/include/asm/hardirq.h | 2 +- arch/arm/kernel/smp.c | 10 +------- arch/arm64/include/asm/hardirq.h | 2 +- arch/arm64/kernel/smp.c | 10 +------- arch/ia64/kernel/smp.c | 8 ++----- arch/m32r/include/asm/smp.h | 1 - arch/m32r/kernel/smp.c | 9 +------- arch/m32r/kernel/traps.c | 3 +-- arch/mn10300/include/asm/smp.h | 2 +- arch/mn10300/kernel/smp.c | 19 ++++++++------- arch/s390/kernel/smp.c | 10 ++++---- arch/sh/include/asm/smp.h | 1 - arch/sh/kernel/smp.c | 5 +--- arch/sparc/include/asm/pil.h | 5 ++-- arch/sparc/include/asm/smp_32.h | 4 +--- arch/sparc/kernel/entry.S | 10 ++------ arch/sparc/kernel/leon_smp.c | 31 ++++++------------------- arch/sparc/kernel/smp_32.c | 14 ++--------- arch/sparc/kernel/smp_64.c | 13 +---------- arch/sparc/kernel/sun4d_smp.c | 31 ++++++------------------- arch/sparc/kernel/sun4m_smp.c | 11 ++------- arch/sparc/kernel/ttable_64.S | 12 ++++------ arch/sparc/mm/ultra.S | 5 ---- arch/tile/include/asm/smp.h | 7 +++--- arch/tile/kernel/smp.c | 6 +---- arch/x86/include/asm/entry_arch.h | 1 - arch/x86/include/asm/hw_irq.h | 3 --- arch/x86/include/asm/irq_vectors.h | 7 +++--- arch/x86/include/asm/trace/irq_vectors.h | 6 ----- arch/x86/include/asm/xen/events.h | 1 - arch/x86/kernel/entry_64.S | 2 -- arch/x86/kernel/irqinit.c | 4 ---- arch/x86/kernel/smp.c | 24 +------------------ arch/x86/xen/smp.c | 37 +----------------------------- include/linux/smp.h | 4 +--- include/linux/smpboot.h | 1 - kernel/smp.c | 4 ++-- 38 files changed, 65 insertions(+), 268 deletions(-) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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