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SubjectRe: Weirdness of "mount -o remount,rw" with write-protected floppy
On 10/27/05, Jon Masters <jonmasters@gmail.com> wrote:
> On 10/27/05, Evgeny Stambulchik <Evgeny.Stambulchik@weizmann.ac.il> wrote:
>
> > # mount /dev/fd0 /mnt/floppy/
> > mount: block device /dev/fd0 is write-protected, mounting read-only
> > # mount -o remount,rw /mnt/floppy
> > # echo $?
> > 0
>
> Oops. That looks like a bug.

Callchain is:

sys_mount -> do_mount -> do_remount

and that then calls:

do_remount_sb

which does:

if (!(flags & MS_RDONLY) && bdev_read_only(sb->s_bdev))
return -EACCES;
So I'm missing something. I'll have another look, it's failing somewhere else.

Jon.
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