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| author | David Daney <ddaney@caviumnetworks.com> | 2009-01-27 09:53:22 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-27 16:06:55 -0800 |
| commit | 97179fd46da7ddedd18e95388130ed3e06c5a0c7 (patch) | |
| tree | 8d1a56e41345244d36a9d943a69c5ecf76942816 | |
| parent | 1267a8df209c7453d65acbdd56e3588954bf890b (diff) | |
| download | linux-97179fd46da7ddedd18e95388130ed3e06c5a0c7.tar.gz linux-97179fd46da7ddedd18e95388130ed3e06c5a0c7.tar.bz2 linux-97179fd46da7ddedd18e95388130ed3e06c5a0c7.zip | |
cpumask fallout: Initialize irq_default_affinity earlier
Move the initialization of irq_default_affinity to early_irq_init as
core_initcall is too late.
irq_default_affinity can be used in init_IRQ and potentially timer and
SMP init as well. All of these happen before core_initcall. Moving
the initialization to early_irq_init ensures that it is initialized
before it is used.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Mike Travis <travis@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | kernel/irq/handle.c | 16 | ||||
| -rw-r--r-- | kernel/irq/manage.c | 8 |
2 files changed, 16 insertions, 8 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index c20db0be9173..3aba8d12f328 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -39,6 +39,18 @@ void handle_bad_irq(unsigned int irq, struct irq_desc *desc) ack_bad_irq(irq); } +#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS) +static void __init init_irq_default_affinity(void) +{ + alloc_bootmem_cpumask_var(&irq_default_affinity); + cpumask_setall(irq_default_affinity); +} +#else +static void __init init_irq_default_affinity(void) +{ +} +#endif + /* * Linux has a controller-independent interrupt architecture. * Every controller has a 'controller-template', that is used @@ -134,6 +146,8 @@ int __init early_irq_init(void) int legacy_count; int i; + init_irq_default_affinity(); + desc = irq_desc_legacy; legacy_count = ARRAY_SIZE(irq_desc_legacy); @@ -219,6 +233,8 @@ int __init early_irq_init(void) int count; int i; + init_irq_default_affinity(); + desc = irq_desc; count = ARRAY_SIZE(irq_desc); diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 618a64f1915a..291f03664552 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -18,14 +18,6 @@ #if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS) cpumask_var_t irq_default_affinity; -static int init_irq_default_affinity(void) -{ - alloc_cpumask_var(&irq_default_affinity, GFP_KERNEL); - cpumask_setall(irq_default_affinity); - return 0; -} -core_initcall(init_irq_default_affinity); - /** * synchronize_irq - wait for pending IRQ handlers (on other CPUs) * @irq: interrupt number to wait for |