Re: add a not device managed memremap_pages v3
From: Christoph Hellwig
Date: Mon Aug 19 2019 - 02:30:31 EST
On Mon, Aug 19, 2019 at 10:57:52AM +0530, Bharata B Rao wrote:
> On Sun, Aug 18, 2019 at 11:05:53AM +0200, Christoph Hellwig wrote:
> > Hi Dan and Jason,
> > Bharata has been working on secure page management for kvmppc guests,
> > and one I thing I noticed is that he had to fake up a struct device
> > just so that it could be passed to the devm_memremap_pages
> > instrastructure for device private memory.
> > This series adds non-device managed versions of the
> > devm_request_free_mem_region and devm_memremap_pages functions for
> > his use case.
> Tested kvmppc ultravisor patchset with migrate_vma changes and this
> patchset. (Had to manually patch mm/memremap.c instead of kernel/memremap.c
Oh. I rebased to the hmm tree, and that didn't have the rename yet.
And I didn't even notice that as git handled it transparently.