Hi!
> --- a/Documentation/ABI/testing/sysfs-kernel-livepatch
> +++ b/Documentation/ABI/testing/sysfs-kernel-livepatch
> @@ -33,6 +33,15 @@ Contact: live-patch...@vger.kernel.org
> An attribute which indicates whether the patch is currently in
> transition.
>
> +What
On Fri, Nov 03, 2017 at 09:02:50AM +0100, Miroslav Benes wrote:
> On Thu, 2 Nov 2017, Josh Poimboeuf wrote:
>
> > On Tue, Oct 31, 2017 at 12:48:52PM +0100, Miroslav Benes wrote:
> > > +
> > > +/*
> > > + * Sends a fake signal to all non-kthread tasks with TIF_PATCH_PENDING
> > > set.
> > > + * Kt
On Thu, 2 Nov 2017, Josh Poimboeuf wrote:
> On Tue, Oct 31, 2017 at 12:48:52PM +0100, Miroslav Benes wrote:
> > diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
> > index bf8c8fd72589..b7c60662baf3 100644
> > --- a/kernel/livepatch/core.c
> > +++ b/kernel/livepatch/core.c
> > @@ -440
On Thu, 2 Nov 2017, Josh Poimboeuf wrote:
> On Tue, Oct 31, 2017 at 12:48:52PM +0100, Miroslav Benes wrote:
> > +
> > +/*
> > + * Sends a fake signal to all non-kthread tasks with TIF_PATCH_PENDING set.
> > + * Kthreads with TIF_PATCH_PENDING set are woken up. Only admin can
> > request this
> >
On 11/02, Miroslav Benes wrote:
>
> On Wed, 1 Nov 2017, Oleg Nesterov wrote:
>
> > Note also that wake_up_state(TASK_INTERRUPTIBLE) won't wakeup the TASK_IDLE
> > kthreads, and most of the kthreads which use TASK_INTERRUPTIBLE should use
> > TASK_IDLE today, because in most cases TASK_INTERRUPTIBLE
On Tue, Oct 31, 2017 at 12:48:52PM +0100, Miroslav Benes wrote:
> diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
> index bf8c8fd72589..b7c60662baf3 100644
> --- a/kernel/livepatch/core.c
> +++ b/kernel/livepatch/core.c
> @@ -440,6 +440,7 @@ EXPORT_SYMBOL_GPL(klp_enable_patch);
> *
On Tue, Oct 31, 2017 at 12:48:52PM +0100, Miroslav Benes wrote:
> +
> +/*
> + * Sends a fake signal to all non-kthread tasks with TIF_PATCH_PENDING set.
> + * Kthreads with TIF_PATCH_PENDING set are woken up. Only admin can request
> this
> + * action currently.
> + */
> +void klp_force_signals(vo
On Wed, 1 Nov 2017, Oleg Nesterov wrote:
> On 11/01, Petr Mladek wrote:
> >
> > On Tue 2017-10-31 12:48:52, Miroslav Benes wrote:
> > > + if (task->flags & PF_KTHREAD) {
> > > + /*
> > > + * Wake up a kthread which still has not been migrated.
> > > +
On 11/01, Petr Mladek wrote:
>
> On Tue 2017-10-31 12:48:52, Miroslav Benes wrote:
> > + if (task->flags & PF_KTHREAD) {
> > + /*
> > +* Wake up a kthread which still has not been migrated.
> > +*/
> > + wake_up_p
On Tue 2017-10-31 12:48:52, Miroslav Benes wrote:
> Live patching consistency model is of LEAVE_PATCHED_SET and
> SWITCH_THREAD. This means that all tasks in the system have to be marked
> one by one as safe to call a new patched function. Safe means when a
> task is not (sleeping) in a set of patc
> +/*
> + * Sends a fake signal to all non-kthread tasks with TIF_PATCH_PENDING set.
> + * Kthreads with TIF_PATCH_PENDING set are woken up. Only admin can request
> this
> + * action currently.
> + */
> +void klp_force_signals(void)
> +{
> + struct task_struct *g, *task;
> +
> + pr_notic
Live patching consistency model is of LEAVE_PATCHED_SET and
SWITCH_THREAD. This means that all tasks in the system have to be marked
one by one as safe to call a new patched function. Safe means when a
task is not (sleeping) in a set of patched functions. That is, no
patched function is on the task
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