| Date | Mon, 29 May 2006 23:26:26 +0200 | From | Ingo Molnar <> | Subject | [patch 41/61] lock validator: special locking: genirq |
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From: Ingo Molnar <mingo@elte.hu>
teach special (recursive) locking code to the lock validator. Has no effect on non-lockdep kernels.
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> --- --- kernel/irq/handle.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
Index: linux/kernel/irq/handle.c =================================================================== --- linux.orig/kernel/irq/handle.c +++ linux/kernel/irq/handle.c @@ -11,6 +11,7 @@ #include <linux/random.h> #include <linux/interrupt.h> #include <linux/kernel_stat.h> +#include <linux/kallsyms.h> #include "internals.h" @@ -193,3 +194,15 @@ out: return 1; } +/* + * lockdep: we want to handle all irq_desc locks as a single lock-type: + */ +static struct lockdep_type_key irq_desc_lock_type; + +void early_init_irq_lock_type(void) +{ + int i; + + for (i = 0; i < NR_IRQS; i++) + spin_lock_init_key(&irq_desc[i].lock, &irq_desc_lock_type); +} - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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