You're 100% correct, I'll mail a new patch in a few
Brian
On Wed, Mar 17, 2021 at 5:19 PM Peter Xu wrote:
>
> On Wed, Mar 17, 2021 at 04:44:25PM -0400, Brian Geffon wrote:
> > Hi Peter,
>
> Hi, Brian,
>
> > Thank you as always for taking a look. This change relies on the
> > existing check in v
On Wed, Mar 17, 2021 at 04:44:25PM -0400, Brian Geffon wrote:
> Hi Peter,
Hi, Brian,
> Thank you as always for taking a look. This change relies on the
> existing check in vma_to_resize on line 686:
> https://elixir.bootlin.com/linux/v5.12-rc3/source/mm/mremap.c#L686
> which returns -EFAULT when
Hi Peter,
Thank you as always for taking a look. This change relies on the
existing check in vma_to_resize on line 686:
https://elixir.bootlin.com/linux/v5.12-rc3/source/mm/mremap.c#L686
which returns -EFAULT when the vma is VM_DONTEXPAND or VM_PFNMAP.
Thanks
Brian
On Wed, Mar 17, 2021 at 4:40 PM
Hi, Brian,
On Wed, Mar 17, 2021 at 12:13:33PM -0700, Brian Geffon wrote:
> Currently MREMAP_DONTUNMAP only accepts private anonymous mappings. This
> change will widen the support to include any mappings which are not
> VM_DONTEXPAND or VM_PFNMAP. The primary use case is to support
> MREMAP_DONTUN
Currently MREMAP_DONTUNMAP only accepts private anonymous mappings. This
change will widen the support to include any mappings which are not
VM_DONTEXPAND or VM_PFNMAP. The primary use case is to support
MREMAP_DONTUNMAP on mappings which may have been created from a memfd.
This change which takes
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