Messages in this thread | | | Date | Fri, 2 Oct 2020 07:59:30 +0200 | From | Christoph Hellwig <> | Subject | Re: [RFC PATCH v3 2/2] mm: remove extra ZONE_DEVICE struct page refcount |
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On Thu, Oct 01, 2020 at 11:17:15AM -0700, Ralph Campbell wrote: > ZONE_DEVICE struct pages have an extra reference count that complicates the > code for put_page() and several places in the kernel that need to check the > reference count to see that a page is not being used (gup, compaction, > migration, etc.). Clean up the code so the reference count doesn't need to > be treated specially for ZONE_DEVICE. > > Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Looks good,
Reviewed-by: Christoph Hellwig <hch@lst.de>
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