iomap: lift zeroed mapping handling into iomap_zero_range()

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In preparation for special handling of subranges, lift the zeroed
mapping logic from the iterator into the caller. Since this puts the
pagecache dirty check and flushing in the same place, streamline the
comments a bit as well.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Link: https://lore.kernel.org/r/20241115200155.593665-3-bfoster@redhat.com
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Brian Foster 2024-11-15 15:01:54 -05:00 • committed by Christian Brauner

parent 2519369201

commit 889ac75787

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1 changed files with 24 additions and 42 deletions

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fs/iomap/buffered-io.c

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