Displaying 4 results from an estimated 4 matches for "wait_on_var".
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wait_condvar
2019 Jun 28
2
[PATCH 16/25] device-dax: use the dev_pagemap internal refcount
...> pages. So I can't see how that is in any way a problem.
It's a bug that the call to put_devmap_managed_page() was gated by
MEMORY_DEVICE_PUBLIC in release_pages(). That path is also applicable
to MEMORY_DEVICE_FSDAX because it needs to trigger the ->page_free()
callback to wake up wait_on_var() via fsdax_pagefree().
So I guess you could argue that the MEMORY_DEVICE_PUBLIC removal patch
left the original bug in place. In that sense we're no worse off, but
since we know about the bug, the fix and the patches have not been
applied yet, why not fix it now?
2019 Jun 28
0
[PATCH 16/25] device-dax: use the dev_pagemap internal refcount
...2019 at 11:59:19AM -0700, Dan Williams wrote:
> It's a bug that the call to put_devmap_managed_page() was gated by
> MEMORY_DEVICE_PUBLIC in release_pages(). That path is also applicable
> to MEMORY_DEVICE_FSDAX because it needs to trigger the ->page_free()
> callback to wake up wait_on_var() via fsdax_pagefree().
>
> So I guess you could argue that the MEMORY_DEVICE_PUBLIC removal patch
> left the original bug in place. In that sense we're no worse off, but
> since we know about the bug, the fix and the patches have not been
> applied yet, why not fix it now?
The...
2019 Jun 28
1
[PATCH 16/25] device-dax: use the dev_pagemap internal refcount
...-0700, Dan Williams wrote:
> > It's a bug that the call to put_devmap_managed_page() was gated by
> > MEMORY_DEVICE_PUBLIC in release_pages(). That path is also applicable
> > to MEMORY_DEVICE_FSDAX because it needs to trigger the ->page_free()
> > callback to wake up wait_on_var() via fsdax_pagefree().
> >
> > So I guess you could argue that the MEMORY_DEVICE_PUBLIC removal patch
> > left the original bug in place. In that sense we're no worse off, but
> > since we know about the bug, the fix and the patches have not been
> > applied yet,...
2019 Jun 28
2
[PATCH 16/25] device-dax: use the dev_pagemap internal refcount
On Fri, Jun 28, 2019 at 11:29 AM Jason Gunthorpe <jgg at mellanox.com> wrote:
>
> On Fri, Jun 28, 2019 at 10:10:12AM -0700, Dan Williams wrote:
> > On Fri, Jun 28, 2019 at 10:08 AM Dan Williams <dan.j.williams at intel.com> wrote:
> > >
> > > On Fri, Jun 28, 2019 at 10:02 AM Jason Gunthorpe <jgg at mellanox.com> wrote:
> > > >
> >