Messages in this thread | | | Date | Thu, 14 Apr 2016 18:13:39 +0100 | From | Will Deacon <> | Subject | Re: [PATCH v2] arm64/debug: Remove superfluous SMP function call |
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On Wed, Apr 06, 2016 at 10:42:28AM +0200, Anna-Maria Gleixner wrote: > Since commit 1cf4f629d9d2 ("cpu/hotplug: Move online calls to > hotplugged cpu") it is ensured that callbacks of CPU_ONLINE and > CPU_DOWN_PREPARE are processed on the hotplugged CPU. Due to this SMP > function calls are no longer required. > > Replace smp_call_function_single() with a direct call to > clear_os_lock(). The function writes the OSLAR register to clear OS > locking. This does not require to be called with interrupts disabled, > therefore the smp_call_function_single() calling convention is not > preserved. > > Cc: Catalin Marinas <catalin.marinas@arm.com> > Cc: Will Deacon <will.deacon@arm.com> > Cc: linux-arm-kernel@lists.infradead.org > Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> > --- > arch/arm64/kernel/debug-monitors.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-)
Applied this and the hw_breakpoint one too, thanks.
Will
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