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From: Jiri Kosina <jikos@kernel.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
	Wim Osterholt <wim@djo.tudelft.nl>,
	Denis Efremov <efremov@linux.com>
Subject: Re: [PATCH RESEND] floppy: fix open(O_ACCMODE) for ioctl-only open
Date: Tue, 19 Jan 2021 16:53:29 +0100 (CET)	[thread overview]
Message-ID: <nycvar.YFH.7.76.2101191649190.5622@cbobk.fhfr.pm> (raw)
In-Reply-To: <9c713fa8-9da1-47b5-0d5d-92f4cd13493a@kernel.dk>

On Mon, 25 Jul 2016, Jens Axboe wrote:

> > From: Jiri Kosina <jkosina@suse.cz>
> >
> > Commit 09954bad4 ("floppy: refactor open() flags handling"), as a
> > side-effect, causes open(/dev/fdX, O_ACCMODE) to fail. It turns out that
> > this is being used setfdprm userspace for ioctl-only open().
> >
> > Reintroduce back the original behavior wrt !(FMODE_READ|FMODE_WRITE)
> > modes, while still keeping the original O_NDELAY bug fixed.
> >
> > Cc: stable@vger.kernel.org # v4.5+
> > Reported-by: Wim Osterholt <wim@djo.tudelft.nl>
> > Tested-by: Wim Osterholt <wim@djo.tudelft.nl>
> > Signed-off-by: Jiri Kosina <jkosina@suse.cz>
> 
> Added for this series, thanks.

[ CCing Denis too ]

Let me revive this 4 years old thread.

I've just now noticed that instead of my patch above being merged, what 
happened instead was

	commit f2791e7eadf437633f30faa51b30878cf15650be
	Author: Jens Axboe <axboe@fb.com>
	Date:   Thu Aug 25 08:56:51 2016 -0600

	    Revert "floppy: refactor open() flags handling"
    
	    This reverts commit 09954bad448791ef01202351d437abdd9497a804.


which was plain revert of 09954bad4 (without any further explanation), 
which in turn reintroduced the O_NDELAY issue, and I've just been hit by 
it again.

I am not able to find any e-mail thread that'd indicate why ultimately 
revert happened, instead of mergin my fix.
Jens, do you have any idea?

Thanks,

-- 
Jiri Kosina
SUSE Labs


  reply	other threads:[~2021-01-19 15:55 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20160610230255.GA27770@djo.tudelft.nl>
     [not found] ` <alpine.LNX.2.00.1606131414420.6874@cbobk.fhfr.pm>
     [not found]   ` <20160614184308.GA6188@djo.tudelft.nl>
     [not found]     ` <alpine.LNX.2.00.1606150906320.6874@cbobk.fhfr.pm>
     [not found]       ` <20160615132040.GZ14480@ZenIV.linux.org.uk>
     [not found]         ` <alpine.LNX.2.00.1606151610420.6874@cbobk.fhfr.pm>
     [not found]           ` <20160615224722.GA9545@djo.tudelft.nl>
2016-06-16  7:53             ` [PATCH] floppy: fix open(O_ACCMODE) for ioctl-only open Jiri Kosina
2016-06-30 11:18               ` [PATCH RESEND] " Jiri Kosina
2016-07-25 18:09                 ` Wim Osterholt
2016-07-25 20:48                 ` Jens Axboe
2021-01-19 15:53                   ` Jiri Kosina [this message]
2021-01-21  4:44                     ` Denis Efremov
2021-01-21 10:25                       ` Jiri Kosina
2021-01-21 13:28                         ` [PATCH] floppy: reintroduce O_NDELAY fix kernel test robot
2021-01-21 14:44                         ` [PATCH RESEND] floppy: fix open(O_ACCMODE) for ioctl-only open Jiri Kosina
2021-01-21 15:02                           ` Denis Efremov
2021-01-21 15:05                             ` Jiri Kosina
2021-01-22 11:13                               ` [PATCH] floppy: reintroduce O_NDELAY fix Jiri Kosina
2021-01-26  8:21                                 ` Denis Efremov
2021-01-26  9:31                                   ` Kurt Garloff
2021-01-26  9:59                                     ` Denis Efremov
2021-02-04  9:24                                   ` Jiri Kosina
2021-02-04 10:18                                     ` Denis Efremov
2021-01-21 14:45                         ` [PATCH RESEND] floppy: fix open(O_ACCMODE) for ioctl-only open Denis Efremov

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