[PATCH v2 06/13] um: Improve panic notifiers consistency and ordering

Guilherme G. Piccoli gpiccoli at igalia.com
Sun Aug 7 08:40:17 PDT 2022


On 19/07/2022 16:53, Guilherme G. Piccoli wrote:
> Currently the panic notifiers from user mode linux don't follow
> the convention for most of the other notifiers present in the
> kernel (indentation, priority setting, numeric return).
> More important, the priorities could be improved, since it's a
> special case (userspace), hence we could run the notifiers earlier;
> user mode linux shouldn't care much with other panic notifiers but
> the ordering among the mconsole and arch notifier is important,
> given that the arch one effectively triggers a core dump.
> 
> Fix that by running the mconsole notifier as the first panic
> notifier, followed by the architecture one (that coredumps).
> 
> Cc: Anton Ivanov <anton.ivanov at cambridgegreys.com>
> Cc: Johannes Berg <johannes at sipsolutions.net>
> Cc: Richard Weinberger <richard at nod.at>
> Signed-off-by: Guilherme G. Piccoli <gpiccoli at igalia.com>
> 
> ---
> 
> V2:
> - Kept the notifier header to avoid implicit usage - thanks
> Johannes for the suggestion!
> 
>  arch/um/drivers/mconsole_kern.c | 7 +++----
>  arch/um/kernel/um_arch.c        | 8 ++++----
>  2 files changed, 7 insertions(+), 8 deletions(-)
> [...]

Hi Johannes, do you feel this one is good now, after your last review?
Thanks in advance,


Guilherme



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