Three small folio patches

The following changes since commit 455e73a07f6e288b0061dfcf4fcf54fa9fe06458:

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux (2022-01-12 17:02:27 -0800)

are available in the Git repository at:

git://git.infradead.org/users/willy/pagecache.git tags/folio-5.17a

for you to fetch changes up to 3abb28e275bfbe60136db37eae6679c3e1928cd5:

filemap: Use folio_put_refs() in filemap_free_folio() (2022-01-16 19:52:13 -0500)

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Three small folio patches.

One bug fix, one patch pulled forward from the patches destined for 5.18 and then a patch to make use of that functionality.

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Matthew Wilcox (Oracle) (3):
pagevec: Initialise folio_batch->percpu_pvec_drained
mm: Add folio_put_refs()
filemap: Use folio_put_refs() in filemap_free_folio()

 include/linux/mm.h      | 20 ++++++++++++++++++++
 include/linux/pagevec.h |  1 +
 mm/filemap.c            | 10 ++++------
 3 files changed, 25 insertions(+), 6 deletions(-)