Re: [PATCH v4 00/23] Convert to filemap_get_folios_tag()

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On Wed, Nov 02, 2022 at 09:10:08AM -0700, Vishal Moola (Oracle) wrote:
> This patch series replaces find_get_pages_range_tag() with
> filemap_get_folios_tag(). This also allows the removal of multiple
> calls to compound_head() throughout.
> It also makes a good chunk of the straightforward conversions to folios,
> and takes the opportunity to introduce a function that grabs a folio
> from the pagecache.
> 
> F2fs and Ceph have quite a lot of work to be done regarding folios, so
> for now those patches only have the changes necessary for the removal of
> find_get_pages_range_tag(), and only support folios of size 1 (which is
> all they use right now anyways).
> 
> I've run xfstests on btrfs, ext4, f2fs, and nilfs2, but more testing may be
> beneficial. The page-writeback and filemap changes implicitly work. Testing
> and review of the other changes (afs, ceph, cifs, gfs2) would be appreciated.

Same question as last time: have you tested this with multipage
folios enabled? If you haven't tested XFS, then I'm guessing the
answer is no, and you haven't fixed the bug I pointed out in
the write_cache_pages() implementation....

-Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx



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