linux-kernel - Re: [PATCH] Revert "tty: Fix pty master poll() after slave closes v2"

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Message-ID: <54AC1225.7080804@hurleysoftware.com>
Date:	Tue, 06 Jan 2015 11:49:41 -0500
From:	Peter Hurley <peter@...leysoftware.com>
To:	Jiri Slaby <jslaby@...e.cz>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	Francesco Ruggeri <fruggeri@...stanetworks.com>,
	Francesco Ruggeri <fruggeri@...sta.com>
Subject: Re: [PATCH] Revert "tty: Fix pty master poll() after slave closes
 v2"

On 01/06/2015 09:33 AM, Jiri Slaby wrote:
> On 12/30/2014, 01:31 PM, Peter Hurley wrote:
>> On 12/30/2014 07:17 AM, Peter Hurley wrote:
>>> This reverts commit c4dc304677e8d566572c4738d95c48be150c6606.
>>> This fix is superseded by commit 52bce7f8d4fc633c9a9d0646eef58ba6ae9a3b73,
>>> 'pty, n_tty: Simplify input processing on final close'.
>>>
>>> The final close now waits for input processing to complete before
>>> destroying the pty, so poll() does not need to special case this
>>> condition.
>>
>> Greg,
>>
>> As noted in this commit log, commit c4dc304677e8d566572c4738d95c48be150c6606,
>> 'tty: Fix pty master poll() after slave closes v2', is not required
>> after commit 52bce7f8d4fc633c9a9d0646eef58ba6ae9a3b73,
>> 'pty, n_tty: Simplify input processing on final close'
>>
>> However, 'tty: Fix pty master poll() after slave closes v2' is appropriate
>> for stable back to v3.12.
> 
> Now applied to 3.12. A backport was needed due to the later change of
> the input_available_p 2nd parameter.

Thanks Jiri.

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