Messages in this thread Patch in this message | | | From | Benjamin Herrenschmidt <> | Date | Thu, 25 Oct 2007 13:59:08 +1000 | Subject | [PATCH] napi: use non-interruptible sleep in napi_disable |
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The current napi_disable() uses msleep_interruptible() but doesn't (and can't) exit in case there's a signal, thus ending up doing a hot spin without a cpu_relax. Use uninterruptible sleep instead.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> ---
include/linux/netdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-work/include/linux/netdevice.h =================================================================== --- linux-work.orig/include/linux/netdevice.h 2007-10-17 12:39:16.000000000 +1000 +++ linux-work/include/linux/netdevice.h 2007-10-17 12:45:00.000000000 +1000 @@ -390,7 +390,7 @@ static inline void napi_complete(struct static inline void napi_disable(struct napi_struct *n) { while (test_and_set_bit(NAPI_STATE_SCHED, &n->state)) - msleep_interruptible(1); + msleep(1); } /** - 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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