xfs: fill dirty folios on zero range of unwritten mappings

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Use the iomap folio batch mechanism to select folios to zero on zero
range of unwritten mappings. Trim the resulting mapping if the batch
is filled (unlikely for current use cases) to distinguish between a
range to skip and one that requires another iteration due to a full
batch.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Brian Foster 2025-10-03 09:46:39 -04:00 • committed by Christian Brauner

parent 5c13dde963

commit 77c475692c

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fs/xfs/xfs_iomap.c

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