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...io->private for the time being. Either (a) If folio->private is still set once the refcount drops to 0, it indicates that there is a freeing callback/owner_ops. We'll have to make hugetlb not use folio->private and convert others to clear folio->private before freeing. (b) Use bitX of folio->private to indicate that this has "owner_ops" meaning. We'll have to make hugetlb not use folio->private and make others not use bitX. Might be harder and overkill, because right now we only really need the callback when refcount==0. (c) Use some other indication t...

...gt; Either > > (a) If folio->private is still set once the refcount drops to 0, it > indicates that there is a freeing callback/owner_ops. We'll have to make > hugetlb not use folio->private and convert others to clear folio->private > before freeing. > > (b) Use bitX of folio->private to indicate that this has "owner_ops" > meaning. We'll have to make hugetlb not use folio->private and make others > not use bitX. Might be harder and overkill, because right now we only really > need the callback when refcount==0. > > (c) Use s...

On Tue, Nov 12, 2024 at 10:10:06AM +0100, David Hildenbrand wrote: > On 12.11.24 06:26, Matthew Wilcox wrote: > > On Mon, Nov 11, 2024 at 08:26:54AM +0000, Fuad Tabba wrote: > > > Thanks for your comments Jason, and for clarifying my cover letter > > > David. I think David has covered everything, and I'll make sure to > > > clarify this in the cover letter