Re: [PATCH v8 03/10] mm: Provide a helper to drop a pin/ref on a page

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On 24.01.23 15:52, Christoph Hellwig wrote:
On Tue, Jan 24, 2023 at 02:41:33PM +0000, David Howells wrote:
Yes.  Christoph insisted that the bio conversion patch be split up.  That
means there's an interval where you can get FOLL_GET from that.

The only place where we have both is in the block layer.  It never gets
set by bio_set_cleanup_mode.

Instead we can just keep using put_page dirctly for the BIO_PAGE_REFFED
case in the callers of bio_release_page and in bio_release_pages itself,
and then do away with bio_to_gup_flags and bio_release_page entirely.


Thank you, just what I had in mind ...

--
Thanks,

David / dhildenb




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