Messages in this thread Patch in this message | | | Date | Mon, 27 Aug 2007 16:06:19 +0100 (BST) | From | Hugh Dickins <> | Subject | [PATCH] fix bogus hotplug cpu warning |
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Fix bogus DEBUG_PREEMPT warning on x86_64, when cpu brought online after bootup: current_is_keventd is right to note its use of smp_processor_id is preempt-safe, but should use raw_smp_processor_id to avoid the warning.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
--- 2.6.23-rc3-git10/kernel/workqueue.c 2007-07-26 19:49:58.000000000 +0100 +++ linux/kernel/workqueue.c 2007-08-26 18:59:16.000000000 +0100 @@ -635,7 +635,7 @@ int keventd_up(void) int current_is_keventd(void) { struct cpu_workqueue_struct *cwq; - int cpu = smp_processor_id(); /* preempt-safe: keventd is per-cpu */ + int cpu = raw_smp_processor_id(); /* preempt-safe: keventd is per-cpu */ int ret = 0; BUG_ON(!keventd_wq); - 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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