Re: [PATCH] Fix writing maj:min to /sys/power/resume (fixes hiberation with systemd)

From: Rafael J. Wysocki
Date: Tue Jul 11 2023 - 14:01:27 EST


On Tue, Jul 11, 2023 at 2:08 PM Christoph Hellwig <hch@xxxxxx> wrote:
>
> On Tue, Jul 11, 2023 at 01:48:12PM +0200, Azat Khuzhin wrote:
> > resume_store() first calls lookup_bdev() and after tries to handle
> > maj:min, but it does not reset the error before, hence if you will write
> > maj:min you will get ENOENT:
> >
> > # echo 259:2 >| /sys/power/resume
> > bash: echo: write error: No such file or directory
> >
> > This also should fix hiberation via systemd, since it uses this way.
>
> Looks good:
>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>

Applied as 6.5-rc material, thanks!