linux-kernel - Re: [PATCH 11/12] closures: closure_wait

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <3130eb62-e3b7-12d7-e724-7d549c68b6cf@suse.de>
Date:   Tue, 11 Jun 2019 18:25:22 +0800
From:   Coly Li <colyli@...e.de>
To:     Kent Overstreet <kent.overstreet@...il.com>,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-bcache@...r.kernel.org
Subject: Re: [PATCH 11/12] closures: closure_wait_event()

On 2019/6/11 3:14 上午, Kent Overstreet wrote:
> Signed-off-by: Kent Overstreet <kent.overstreet@...il.com>

Acked-by: Coly Li <colyli@...e.de>

Thanks.

Coly Li

> ---
>  include/linux/closure.h | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/include/linux/closure.h b/include/linux/closure.h
> index 308e38028c..abacb91c35 100644
> --- a/include/linux/closure.h
> +++ b/include/linux/closure.h
> @@ -379,4 +379,26 @@ static inline void closure_call(struct closure *cl, closure_fn fn,
>  	continue_at_nobarrier(cl, fn, wq);
>  }
>  
> +#define __closure_wait_event(waitlist, _cond)				\
> +do {									\
> +	struct closure cl;						\
> +									\
> +	closure_init_stack(&cl);					\
> +									\
> +	while (1) {							\
> +		closure_wait(waitlist, &cl);				\
> +		if (_cond)						\
> +			break;						\
> +		closure_sync(&cl);					\
> +	}								\
> +	closure_wake_up(waitlist);					\
> +	closure_sync(&cl);						\
> +} while (0)
> +
> +#define closure_wait_event(waitlist, _cond)				\
> +do {									\
> +	if (!(_cond))							\
> +		__closure_wait_event(waitlist, _cond);			\
> +} while (0)
> +
>  #endif /* _LINUX_CLOSURE_H */
> 


-- 

Coly Li