iomap: Add iomap_get_folio helper

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Add an iomap_get_folio() helper that gets a folio reference based on
an iomap iterator and an offset into the address space.  Use it in
iomap_write_begin().

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>

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Andreas Gruenbacher 2023-01-15 08:49:04 -08:00 • committed by Darrick J. Wong

parent 40405dddd9

commit 98321b5139

2 changed files with 31 additions and 9 deletions

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39

fs/iomap/buffered-io.c

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1

include/linux/iomap.h

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