linux-kernel - Re: [PATCH 0/2] pipe: Fixes [ver #2]

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Date:   Wed, 11 Dec 2019 20:55:31 +0000
From:   David Howells <dhowells@...hat.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     dhowells@...hat.com, David Sterba <dsterba@...e.cz>,
        Eric Biggers <ebiggers@...nel.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Vincent Guittot <vincent.guittot@...aro.org>
Subject: Re: [PATCH 0/2] pipe: Fixes [ver #2]

Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> DavidH, give these a look:
> 
>   85190d15f4ea pipe: don't use 'pipe_wait() for basic pipe IO
>   a28c8b9db8a1 pipe: remove 'waiting_writers' merging logic
>   f467a6a66419 pipe: fix and clarify pipe read wakeup logic
>   1b6b26ae7053 pipe: fix and clarify pipe write wakeup logic
>   ad910e36da4c pipe: fix poll/select race introduced by the pipe rework
> 
> the top two of which are purely "I'm fed up looking at this code, this
> needs to go" kind of changes.

They look reasonable.

Is it worth reverting:

	commit f94df9890e98f2090c6a8d70c795134863b70201
	Add wake_up_interruptible_sync_poll_locked()

since you changed the code that was calling that new function and so it's no
longer called?

David