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| author | Tony Lindgren <tony@atomide.com> | 2010-03-01 14:19:05 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-03-01 14:19:05 -0800 |
| commit | d702d12167a2c05a346f49aac7a311d597762495 (patch) | |
| tree | baae42c299cce34d6df24b5d01f8b1d0b481bd9a /arch/sh/mm/cache.c | |
| parent | 9418c65f9bd861d0f7e39aab9cfb3aa6f2275d11 (diff) | |
| parent | ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (diff) | |
| download | kernel_samsung_smdk4412-d702d12167a2c05a346f49aac7a311d597762495.zip kernel_samsung_smdk4412-d702d12167a2c05a346f49aac7a311d597762495.tar.gz kernel_samsung_smdk4412-d702d12167a2c05a346f49aac7a311d597762495.tar.bz2 | |
Merge with mainline to remove plat-omap/Kconfig conflict
Conflicts:
arch/arm/plat-omap/Kconfig
Diffstat (limited to 'arch/sh/mm/cache.c')
| -rw-r--r-- | arch/sh/mm/cache.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c index b8607fa..0f4095d 100644 --- a/arch/sh/mm/cache.c +++ b/arch/sh/mm/cache.c @@ -2,7 +2,7 @@ * arch/sh/mm/cache.c * * Copyright (C) 1999, 2000, 2002 Niibe Yutaka - * Copyright (C) 2002 - 2009 Paul Mundt + * Copyright (C) 2002 - 2010 Paul Mundt * * Released under the terms of the GNU GPL v2.0. */ @@ -41,8 +41,17 @@ static inline void cacheop_on_each_cpu(void (*func) (void *info), void *info, int wait) { preempt_disable(); - smp_call_function(func, info, wait); + + /* + * It's possible that this gets called early on when IRQs are + * still disabled due to ioremapping by the boot CPU, so don't + * even attempt IPIs unless there are other CPUs online. + */ + if (num_online_cpus() > 1) + smp_call_function(func, info, wait); + func(info); + preempt_enable(); } |