On Thu, Mar 20, 2014 at 09:13:59AM +0100, Jan Kara wrote:
> On Thu 20-03-14 10:09:54, Minchan Kim wrote:
> > Hello,
> >
> > On Wed, Mar 19, 2014 at 11:12:02AM +0100, Jan Kara wrote:
> > > On Wed 19-03-14 09:49:18, Minchan Kim wrote:
> > > > On Tue, Mar 18, 2014 at 11:07:50AM -0700, John Stultz
On Thu 20-03-14 10:09:54, Minchan Kim wrote:
> Hello,
>
> On Wed, Mar 19, 2014 at 11:12:02AM +0100, Jan Kara wrote:
> > On Wed 19-03-14 09:49:18, Minchan Kim wrote:
> > > On Tue, Mar 18, 2014 at 11:07:50AM -0700, John Stultz wrote:
> > > > On Tue, Mar 18, 2014 at 8:11 AM, Minchan Kim wrote:
> >
Hello Dave,
On Wed, Mar 19, 2014 at 05:38:10PM -0700, Dave Hansen wrote:
> On 03/18/2014 05:24 AM, Michal Hocko wrote:
> > On Fri 14-03-14 11:33:30, John Stultz wrote:
> > [...]
> >> Volatile ranges provides a method for userland to inform the kernel that
> >> a range of memory is safe to discard
Hello Dave,
On Wed, Mar 19, 2014 at 05:38:10PM -0700, Dave Hansen wrote:
On 03/18/2014 05:24 AM, Michal Hocko wrote:
On Fri 14-03-14 11:33:30, John Stultz wrote:
[...]
Volatile ranges provides a method for userland to inform the kernel that
a range of memory is safe to discard (ie: can
On Thu 20-03-14 10:09:54, Minchan Kim wrote:
Hello,
On Wed, Mar 19, 2014 at 11:12:02AM +0100, Jan Kara wrote:
On Wed 19-03-14 09:49:18, Minchan Kim wrote:
On Tue, Mar 18, 2014 at 11:07:50AM -0700, John Stultz wrote:
On Tue, Mar 18, 2014 at 8:11 AM, Minchan Kim minc...@kernel.org
On Thu, Mar 20, 2014 at 09:13:59AM +0100, Jan Kara wrote:
On Thu 20-03-14 10:09:54, Minchan Kim wrote:
Hello,
On Wed, Mar 19, 2014 at 11:12:02AM +0100, Jan Kara wrote:
On Wed 19-03-14 09:49:18, Minchan Kim wrote:
On Tue, Mar 18, 2014 at 11:07:50AM -0700, John Stultz wrote:
On
Hello,
On Wed, Mar 19, 2014 at 11:12:02AM +0100, Jan Kara wrote:
> On Wed 19-03-14 09:49:18, Minchan Kim wrote:
> > On Tue, Mar 18, 2014 at 11:07:50AM -0700, John Stultz wrote:
> > > On Tue, Mar 18, 2014 at 8:11 AM, Minchan Kim wrote:
> > > > 1) SIGBUS
> > > >
> > > > It's one of the arguable
On 03/19/2014 05:38 PM, Dave Hansen wrote:
> On 03/18/2014 05:24 AM, Michal Hocko wrote:
>> On Fri 14-03-14 11:33:30, John Stultz wrote:
>> [...]
>>> Volatile ranges provides a method for userland to inform the kernel that
>>> a range of memory is safe to discard (ie: can be regenerated) but
>>>
On 03/18/2014 05:24 AM, Michal Hocko wrote:
> On Fri 14-03-14 11:33:30, John Stultz wrote:
> [...]
>> Volatile ranges provides a method for userland to inform the kernel that
>> a range of memory is safe to discard (ie: can be regenerated) but
>> userspace may want to try access it in the future.
On Wed 19-03-14 09:49:18, Minchan Kim wrote:
> On Tue, Mar 18, 2014 at 11:07:50AM -0700, John Stultz wrote:
> > On Tue, Mar 18, 2014 at 8:11 AM, Minchan Kim wrote:
> > > 1) SIGBUS
> > >
> > > It's one of the arguable issue because some user want to get a
> > > SIGBUS(ex, Firefox) while other want
On Wed 19-03-14 09:49:18, Minchan Kim wrote:
On Tue, Mar 18, 2014 at 11:07:50AM -0700, John Stultz wrote:
On Tue, Mar 18, 2014 at 8:11 AM, Minchan Kim minc...@kernel.org wrote:
1) SIGBUS
It's one of the arguable issue because some user want to get a
SIGBUS(ex, Firefox) while other
On 03/18/2014 05:24 AM, Michal Hocko wrote:
On Fri 14-03-14 11:33:30, John Stultz wrote:
[...]
Volatile ranges provides a method for userland to inform the kernel that
a range of memory is safe to discard (ie: can be regenerated) but
userspace may want to try access it in the future. It can
On 03/19/2014 05:38 PM, Dave Hansen wrote:
On 03/18/2014 05:24 AM, Michal Hocko wrote:
On Fri 14-03-14 11:33:30, John Stultz wrote:
[...]
Volatile ranges provides a method for userland to inform the kernel that
a range of memory is safe to discard (ie: can be regenerated) but
userspace may
Hello,
On Wed, Mar 19, 2014 at 11:12:02AM +0100, Jan Kara wrote:
On Wed 19-03-14 09:49:18, Minchan Kim wrote:
On Tue, Mar 18, 2014 at 11:07:50AM -0700, John Stultz wrote:
On Tue, Mar 18, 2014 at 8:11 AM, Minchan Kim minc...@kernel.org wrote:
1) SIGBUS
It's one of the arguable
On Tue, Mar 18, 2014 at 8:11 AM, Minchan Kim wrote:
> 1) SIGBUS
>
> It's one of the arguable issue because some user want to get a
> SIGBUS(ex, Firefox) while other want a just zero page(ex, Google
> address sanitizer) without signal so it should be option.
>
> int vrange(start, len,
On Tue, Mar 18, 2014 at 5:24 AM, Michal Hocko wrote:
> On Fri 14-03-14 11:33:30, John Stultz wrote:
> [...]
>> Volatile ranges provides a method for userland to inform the kernel that
>> a range of memory is safe to discard (ie: can be regenerated) but
>> userspace may want to try access it in
Hello John,
Sorry for late. Timing between us is always not good.
I say my thought although I don't prepare whole thing in my brain
since you sent out the patchset(Anyway, we should share ideas before
the LSF/MM)
On Fri, Mar 14, 2014 at 11:33:30AM -0700, John Stultz wrote:
> I recently got a
On Fri 14-03-14 11:33:30, John Stultz wrote:
[...]
> Volatile ranges provides a method for userland to inform the kernel that
> a range of memory is safe to discard (ie: can be regenerated) but
> userspace may want to try access it in the future. It can be thought of
> as similar to
On Fri 14-03-14 11:33:30, John Stultz wrote:
[...]
Volatile ranges provides a method for userland to inform the kernel that
a range of memory is safe to discard (ie: can be regenerated) but
userspace may want to try access it in the future. It can be thought of
as similar to MADV_DONTNEED,
Hello John,
Sorry for late. Timing between us is always not good.
I say my thought although I don't prepare whole thing in my brain
since you sent out the patchset(Anyway, we should share ideas before
the LSF/MM)
On Fri, Mar 14, 2014 at 11:33:30AM -0700, John Stultz wrote:
I recently got a
On Tue, Mar 18, 2014 at 5:24 AM, Michal Hocko mho...@suse.cz wrote:
On Fri 14-03-14 11:33:30, John Stultz wrote:
[...]
Volatile ranges provides a method for userland to inform the kernel that
a range of memory is safe to discard (ie: can be regenerated) but
userspace may want to try access it
On Tue, Mar 18, 2014 at 8:11 AM, Minchan Kim minc...@kernel.org wrote:
1) SIGBUS
It's one of the arguable issue because some user want to get a
SIGBUS(ex, Firefox) while other want a just zero page(ex, Google
address sanitizer) without signal so it should be option.
int
I recently got a chance to try to implement Johannes' suggested approach
so I wanted to send it out for comments. It looks like Minchan has also
done the same, but from a different direction, focusing on the MADV_FREE
use cases. I think both approaches are valid, so I wouldn't consider
these
I recently got a chance to try to implement Johannes' suggested approach
so I wanted to send it out for comments. It looks like Minchan has also
done the same, but from a different direction, focusing on the MADV_FREE
use cases. I think both approaches are valid, so I wouldn't consider
these
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