linux-kernel - Re: Regression: epoll edge-triggered (EPOLLET) for pipes/FIFOs

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Message-ID: <22d3e535-564e-ebb9-991b-b328f9f806ed@infradead.org>
Date:   Mon, 12 Oct 2020 14:43:13 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        "Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
Cc:     Alexander Viro <aviro@...hat.com>,
        David Howells <dhowells@...hat.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Nicolas Dichtel <nicolas.dichtel@...nd.com>,
        Ian Kent <raven@...maw.net>,
        Christian Brauner <christian@...uner.io>,
        keyrings@...r.kernel.org,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        Linux API <linux-api@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Davide Libenzi <davidel@...ilserver.org>
Subject: Re: Regression: epoll edge-triggered (EPOLLET) for pipes/FIFOs

On 10/12/20 1:52 PM, Linus Torvalds wrote:
> On Mon, Oct 12, 2020 at 1:30 PM Michael Kerrisk (man-pages)
> 
> I'm busy merging, mind testing this odd patch out? It is _entirely_
> untested, but from the symptoms I think it's the obvious fix.
> 
> I did the same thing for the "reader starting out from a full pipe" case too.
> 
>                Linus
> 

and if that patch tests good, then fix this typo, please:

+	 * Epoll nonsensically wants a wakeup wheher the pipe was

	                                      whether

thanks.
-- 
~Randy