iomap: Allow iomap_write_begin() to be called with the full length

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In the future, we want write_begin to know the entire length of the
write so that it can choose to allocate large folios.  Pass the full
length in from __iomap_zero_iter() and limit it where necessary.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

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Matthew Wilcox (Oracle) 2021-12-09 15:47:44 -05:00

parent ea0f843aa7

commit d454ab82bc

1 changed files with 8 additions and 1 deletions

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fs/iomap/buffered-io.c

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