On Fri, Mar 19, 2021 at 04:38:48PM -0700, Paul E. McKenney wrote:
> > I didn't even think that far.
> > My scenario was:
> >
> > 1. cookie = start_poll_synchronize_rcu()
> >
> >
> > 2. cond_synchronize_rcu() checks the cookie and sees that the
> > grace period has not yet expired. So it
On Fri, Mar 19, 2021 at 11:10:40PM +0100, Frederic Weisbecker wrote:
> On Fri, Mar 19, 2021 at 10:51:16AM -0700, Paul E. McKenney wrote:
> > On Fri, Mar 19, 2021 at 02:58:54PM +0100, Frederic Weisbecker wrote:
> > > It's all a matter of personal taste but if I may suggest some namespace
> > >
On Fri, Mar 19, 2021 at 10:51:16AM -0700, Paul E. McKenney wrote:
> On Fri, Mar 19, 2021 at 02:58:54PM +0100, Frederic Weisbecker wrote:
> > It's all a matter of personal taste but if I may suggest some namespace
> > modifications:
> >
> > get_state_synchronize_rcu() ->
On Fri, Mar 19, 2021 at 02:58:54PM +0100, Frederic Weisbecker wrote:
> On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> > From: "Paul E. McKenney"
> >
> > There is a need for a non-blocking polling interface for RCU grace
> > periods, so this commit supplies
On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> From: "Paul E. McKenney"
>
> There is a need for a non-blocking polling interface for RCU grace
> periods, so this commit supplies start_poll_synchronize_rcu() and
> poll_state_synchronize_rcu() for this purpose. Note that
On Thu, Mar 18, 2021 at 03:59:52PM +0100, Frederic Weisbecker wrote:
> On Tue, Mar 16, 2021 at 09:51:01AM -0700, Paul E. McKenney wrote:
> > On Tue, Mar 16, 2021 at 04:17:50PM +0100, Frederic Weisbecker wrote:
> > > On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> > > > +/**
>
On Tue, Mar 16, 2021 at 09:51:01AM -0700, Paul E. McKenney wrote:
> On Tue, Mar 16, 2021 at 04:17:50PM +0100, Frederic Weisbecker wrote:
> > On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> > > +/**
> > > + * poll_state_synchronize_rcu - Conditionally wait for an RCU grace
>
On Tue, Mar 16, 2021 at 04:17:50PM +0100, Frederic Weisbecker wrote:
> On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> > +/**
> > + * poll_state_synchronize_rcu - Conditionally wait for an RCU grace period
> > + *
> > + * @oldstate: return from call to
On Tue, Mar 16, 2021 at 03:47:22PM +0100, Frederic Weisbecker wrote:
> On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> > +/**
> > + * poll_state_synchronize_rcu - Conditionally wait for an RCU grace period
> > + *
> > + * @oldstate: return from call to
On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> +/**
> + * poll_state_synchronize_rcu - Conditionally wait for an RCU grace period
> + *
> + * @oldstate: return from call to get_state_synchronize_rcu() or
> start_poll_synchronize_rcu()
> + *
> + * If a full RCU grace period
On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> +/**
> + * poll_state_synchronize_rcu - Conditionally wait for an RCU grace period
> + *
> + * @oldstate: return from call to get_state_synchronize_rcu() or
> start_poll_synchronize_rcu()
> + *
> + * If a full RCU grace period
On Fri, Mar 12, 2021 at 01:26:47PM +0100, Frederic Weisbecker wrote:
> On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> > /**
> > + * start_poll_state_synchronize_rcu - Snapshot and start RCU grace period
> > + *
> > + * Returns a cookie that is used by a later call to
On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> /**
> + * start_poll_state_synchronize_rcu - Snapshot and start RCU grace period
> + *
> + * Returns a cookie that is used by a later call to cond_synchronize_rcu()
> + * or poll_state_synchronize_rcu() to determine whether or
On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> From: "Paul E. McKenney"
>
> There is a need for a non-blocking polling interface for RCU grace
> periods, so this commit supplies start_poll_synchronize_rcu() and
> poll_state_synchronize_rcu() for this purpose. Note that
From: "Paul E. McKenney"
There is a need for a non-blocking polling interface for RCU grace
periods, so this commit supplies start_poll_synchronize_rcu() and
poll_state_synchronize_rcu() for this purpose. Note that the existing
get_state_synchronize_rcu() may be used if future grace periods are
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