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From: Denis Efremov <efremov@linux.com>
To: markh@compro.net, linux-block@vger.kernel.org,
	Linux-kernel <linux-kernel@vger.kernel.org>
Cc: Jiri Kosina <jkosina@suse.cz>,
	Mark Hounschell <dmarkh@cfl.rr.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [BUG] FLOPPY DRIVER since 5.10.20
Date: Mon, 26 Jul 2021 10:57:45 +0300	[thread overview]
Message-ID: <e49603c2-ac36-12b0-57cf-ff5ab30115bc@linux.com> (raw)
In-Reply-To: <de10cb47-34d1-5a88-7751-225ca380f735@compro.net>

Hi,

On 7/23/21 9:47 PM, Mark Hounschell wrote:
> 
> These 2 incremental patches, patch-5.10.19-20 and patch-5.11.2-3 have broken the user land fd = open("/dev/fd0", (O_RDWR | O_NDELAY)); functionality.

Thank you for the report, I'm looking into this.

> Since FOREVER before the patch, when using O_NDELAY, one could open the floppy device with no media inserted or even with write protected media without error. "Read-only file system" status is returned only when we actually tried to write to it. We have software still in use today that relies on this functionality.

If it's a project with open sources could you please give a link?

Regards,
Denis

  reply	other threads:[~2021-07-26  7:57 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-23 18:47 [BUG] FLOPPY DRIVER since 5.10.20 Mark Hounschell
2021-07-26  7:57 ` Denis Efremov [this message]
2021-07-26 11:15   ` Mark Hounschell
2021-07-26 11:17   ` Mark Hounschell
2021-07-26 11:37     ` Denis Efremov
2021-07-26 12:23       ` Mark Hounschell
2021-07-26 16:34         ` Denis Efremov
2021-07-30  5:15           ` Denis Efremov
2021-08-01 11:14             ` Kurt Garloff
2021-08-08  7:42 ` [PATCH] Revert "floppy: reintroduce O_NDELAY fix" Denis Efremov
2021-08-16  7:17   ` Jiri Kosina
2021-08-18 15:53     ` Denis Efremov
2021-08-30  9:20   ` Thorsten Leemhuis

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