==> On Fri, 29 Dec 2006 17:34:26 -0800, "Chen, Kenneth W" <[EMAIL PROTECTED]> said:
Kenneth> An AIO bug was reported that sleeping function is being called in softirq Kenneth> context: Kenneth> The real problem is that the condition check of ctx->reqs_active in Kenneth> wait_for_all_aios() is incorrect that access to reqs_active is not Kenneth> being properly protected by spin lock. Kenneth> This patch adds that protective spin lock, and at the same time removes Kenneth> all duplicate ref counting for each kiocb as reqs_active is already used Kenneth> as a ref count for each active ioctx. This also ensures that buggy call Kenneth> to flush_workqueue() in softirq context is eliminated. I was finally able to wrap my head around this, and testing has confirmed that this patch fixes the problem. So, Acked-by: Jeff Moyer <[EMAIL PROTECTED]> Better late than never. -Jeff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
