fuse: use iomap for readahead

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Do readahead in fuse using iomap. This gives us granular uptodate
tracking for large folios, which optimizes how much data needs to be
read in. If some portions of the folio are already uptodate (eg through
a prior write), we only need to read in the non-uptodate portions.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Joanne Koong 2025-09-25 17:26:08 -07:00 • committed by Christian Brauner

parent 03e9618e82

commit 4ea907108a

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fs/fuse/file.c

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