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iomap: Convert __iomap_zero_iter to use a folio
authorMatthew Wilcox (Oracle) <willy@infradead.org>
Fri, 5 Nov 2021 18:24:09 +0000 (14:24 -0400)
committerMatthew Wilcox (Oracle) <willy@infradead.org>
Sat, 18 Dec 2021 05:06:07 +0000 (00:06 -0500)
commita25def1fe56858efa40a8490e875da4a711487f8
treee29401aa007c42efa8962aef16637ab4c5f81109tree
parentd454ab82bc7f4aa7af9f539d5cf9a1e237cdcbc2commit | diff
iomap: Convert __iomap_zero_iter to use a folio

The zero iterator can work in folio-sized chunks instead of page-sized
chunks.  This will save a lot of page cache lookups if the file is cached
in large folios.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
fs/iomap/buffered-io.c diff | blob | history
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