mm/writeback: Add __folio_end_writeback()

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test_clear_page_writeback() is actually an mm-internal function, although
it's named as if it's a pagecache function.  Move it to mm/internal.h,
rename it to __folio_end_writeback() and change the return type to bool.

The conversion from page to folio is mostly about accounting the number
of pages being written back, although it does eliminate a couple of
calls to compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>

...

This commit is contained in:

Matthew Wilcox (Oracle) 2021-01-15 23:34:16 -05:00

parent cc24df4cd1

commit 269ccca389

4 changed files with 17 additions and 16 deletions

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1

include/linux/page-flags.h

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2

mm/filemap.c

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1

mm/internal.h

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29

mm/page-writeback.c

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