[PATCH v3 [resend] 00/18] simplify generic cross CPU function call implementation

Jiang Liu
2013-12-15T16:39:32Z

Resend for collecting more Acks targetting v3.14 merge window.
Patch for ARC, MIPS and PARISC has been merged into v3.13.
Gained Acks for Metag, Hexagon, Tile 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 (18):
Revert "kernel/smp.c: free related resources when failure occurs in
hotplug_cfd()"
Revert "smp: Fix SMP function call empty cpu mask race"
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, blackfin: 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: cleanup unsued generic_smp_call_function_single_interrupt()
smp: rename call_single_queue as call_function_queue
SMP, trivial: remove unused code 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/blackfin/mach-common/smp.c | 6 +----
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/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 | 11 +--------
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/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 | 7 +++---
include/linux/smpboot.h | 1 -
kernel/smp.c | 39 ++++++++++----------------------
36 files changed, 70 insertions(+), 282 deletions(-)

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1.8.1.2