From: Denis Efremov <firstname.lastname@example.org> To: email@example.com, firstname.lastname@example.org, email@example.com, Linux-kernel <firstname.lastname@example.org> Cc: Jiri Kosina <email@example.com>, Greg Kroah-Hartman <firstname.lastname@example.org> Subject: Re: [BUG] FLOPPY DRIVER since 5.10.20 Date: Mon, 26 Jul 2021 14:37:09 +0300 [thread overview] Message-ID: <email@example.com> (raw) In-Reply-To: <firstname.lastname@example.org> On 7/26/21 2:17 PM, Mark Hounschell wrote: > On 7/26/21 3:57 AM, Denis Efremov wrote: >> 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 >> > This is immaterial but fdutils and libdsk both use rely on this flag. Who can know who else does. The point is it should NOT have been changed. Yes, I asked this only to add utils and this behavior to the tests. And be more specific about why we should preserve this behavior in next commit messages. Denis
next prev parent reply other threads:[~2021-07-26 11:37 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-23 18:47 Mark Hounschell 2021-07-26 7:57 ` Denis Efremov 2021-07-26 11:15 ` Mark Hounschell 2021-07-26 11:17 ` Mark Hounschell 2021-07-26 11:37 ` Denis Efremov [this message] 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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