iomap: use find_next_bit() for uptodate bitmap scanning

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Use find_next_bit()/find_next_zero_bit() for iomap uptodate bitmap
scanning. This uses __ffs() internally and is more efficient for
finding the next uptodate or non-uptodate bit than iterating through the
the bitmap range testing every bit.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Link: https://patch.msgid.link/20251111193658.3495942-10-joannelkoong@gmail.com
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Joanne Koong 2025-11-11 11:36:58 -08:00 • committed by Christian Brauner

parent fed9c62d28

commit b56c1c54f2

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fs/iomap/buffered-io.c

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