Re: [BUG] FLOPPY DRIVER since 5.10.20

From: Denis Efremov
Date: Mon Jul 26 2021 - 03:57:53 EST


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