On 2014-02-11 16:51:55 [+0100], Thomas Gleixner wrote:
> On Wed, 30 Oct 2013, Mel Gorman wrote:
> > On Wed, Oct 30, 2013 at 09:45:31AM +0100, Thomas Gleixner wrote:
> > > On Tue, 29 Oct 2013, Mel Gorman wrote:
> > > > Patch boots and futextest did not explode but I did no comparison
> > > > perform
On Wed, 30 Oct 2013, Mel Gorman wrote:
> On Wed, Oct 30, 2013 at 09:45:31AM +0100, Thomas Gleixner wrote:
> > On Tue, 29 Oct 2013, Mel Gorman wrote:
> >
> > > Thomas Gleixner and Peter Zijlstra discussed off-list that real-time users
> > > currently have a problem with the page lock being contende
On Tue, Oct 29, 2013 at 02:48:27PM -0400, Chris Mason wrote:
> Quoting Mel Gorman (2013-10-29 13:38:14)
> > Thomas Gleixner and Peter Zijlstra discussed off-list that real-time users
> > currently have a problem with the page lock being contended for unbounded
> > periods of time during futex opera
On Wed, Oct 30, 2013 at 09:45:31AM +0100, Thomas Gleixner wrote:
> On Tue, 29 Oct 2013, Mel Gorman wrote:
>
> > Thomas Gleixner and Peter Zijlstra discussed off-list that real-time users
> > currently have a problem with the page lock being contended for unbounded
> > periods of time during futex
On Tue, Oct 29, 2013 at 02:48:27PM -0400, Chris Mason wrote:
> > + /* Should be impossible but lets be paranoid for now */
> > + if (WARN_ON(inode->i_mapping != mapping)) {
> > + rcu_read_unlock();
> > + iput(inode);
> > +
On Tue, 29 Oct 2013, Mel Gorman wrote:
> Thomas Gleixner and Peter Zijlstra discussed off-list that real-time users
> currently have a problem with the page lock being contended for unbounded
> periods of time during futex operations. The three of us discussed the
> possibiltity that the page lock
Quoting Mel Gorman (2013-10-29 13:38:14)
> Thomas Gleixner and Peter Zijlstra discussed off-list that real-time users
> currently have a problem with the page lock being contended for unbounded
> periods of time during futex operations. The three of us discussed the
> possibiltity that the page loc
Thomas Gleixner and Peter Zijlstra discussed off-list that real-time users
currently have a problem with the page lock being contended for unbounded
periods of time during futex operations. The three of us discussed the
possibiltity that the page lock is unnecessary in this case because we are
not
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