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d8e8c7dda1
linux/arch/arc/kernel
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Vineet Gupta d8e8c7dda1 ARC: [SMP] optimize IPI send and receive 
* Don't send an IPI if receiver already has a pending IPI.
  Atomically piggyback the new msg with pending msg.

* IPI receiver looping on xchg() not required

References: https://lkml.org/lkml/2013/11/25/232
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-12-23 12:05:04 +05:30
..
.gitignore ARC: Add some .gitignore entries 2013-08-26 09:40:24 +05:30
arc_hostlink.c ARC: Hostlink Pseudo-Driver for Metaware Debugger 2013-02-15 23:16:10 +05:30
arcksyms.c
asm-offsets.c ARC: pt_regs update #5: Use real ECR for pt_regs->event vs. synth values 2013-06-26 14:04:48 +05:30
clk.c ARC: fix typo with clock speed 2013-05-07 13:43:54 +05:30
ctx_sw_asm.S ARC: [SMP] Fix build failures for large NR_CPUS 2013-11-06 10:41:46 +05:30
ctx_sw.c ARC: [SMP] Fix build failures for large NR_CPUS 2013-11-06 10:41:46 +05:30
devtree.c arc: remove unnecessary prom.h includes 2013-10-09 20:04:01 -05:00
disasm.c ARC port updates for Linux 3.10 (part 1) 2013-05-09 14:36:27 -07:00
entry.S ARC: Add support for irqflags tracing and lockdep 2013-11-06 10:41:40 +05:30
fpu.c ARC: Process-creation/scheduling/idle-loop 2013-02-11 20:00:38 +05:30
head.S arc: remove '__init' for first_lines_of_secondary() 2013-11-06 10:41:43 +05:30
irq.c arc: remove '__init' for get_hw_config_num_irq() 2013-11-06 10:41:43 +05:30
kgdb.c arc: kgdb: add default implementation for kgdb_roundup_cpus() 2013-11-06 10:41:41 +05:30
kprobes.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-11-15 16:47:22 -08:00
Makefile ARC: Add perf support for ARC700 cores 2013-11-12 09:45:38 +05:30
module.c ARC: Fix coding style issues 2013-04-09 12:21:14 +05:30
perf_event.c ARC: [perf] Fix a few thinkos 2013-11-28 15:49:59 +05:30
process.c ARC: pt_regs update #5: Use real ECR for pt_regs->event vs. synth values 2013-06-26 14:04:48 +05:30
ptrace.c ARC: Ignore ptrace SETREGSET request for synthetic register "stop_pc" 2013-10-12 12:00:36 +05:30
reset.c arc: export symbol for pm_power_off in reset.c 2013-11-06 10:41:44 +05:30
setup.c DeviceTree updates for 3.13. This is a bit larger pull request than 2013-11-12 16:52:17 +09:00
signal.c ARC: Fix signal frame management for SA_SIGINFO 2013-10-03 09:43:56 +05:30
smp.c ARC: [SMP] optimize IPI send and receive 2013-12-23 12:05:04 +05:30
stacktrace.c arc: export symbol for save_stack_trace() in stacktrace.c 2013-11-06 10:41:44 +05:30
sys.c ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI 2013-03-11 19:01:10 +05:30
time.c ARC: [SMP] Disallow RTSC 2013-11-07 14:34:31 +05:30
traps.c ARC: Reduce #ifdef'ery for unaligned access emulation 2013-11-06 10:41:39 +05:30
troubleshoot.c ARC changes for 3.11 2013-07-03 11:09:27 -07:00
unaligned.c ARC: Handle zero-overhead-loop in unaligned access handler 2013-09-27 16:28:23 +05:30
unwind.c ARC: warn on improper stack unwind FDE entries 2013-06-27 14:37:59 +05:30
vmlinux.lds.S ARC: Adjustments for gcc 4.8 2013-06-27 14:35:32 +05:30