Rob N f4f156157d abd_iter_page: rework to handle multipage scatterlists ... Previously, abd_iter_page() would assume that every scatterlist would contain a single page (compound or no), because that's all we ever create in abd_alloc_chunks(). However, scatterlists can contain multiple pages of arbitrary provenance, and if we get one of those, we'd get all the math wrong. This reworks things to handle multiple pages in a scatterlist, by properly finding the right page within it for the given offset, and understanding better where the end of the page is and not crossing it. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Reported-by: Brian Atkinson <batkinson@lanl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Brian Atkinson <batkinson@lanl.gov> Signed-off-by: Rob Norris <rob.norris@klarasystems.com> Closes #16108		2024-04-19 16:41:31 -07:00
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spl	xdr: header cleanup	2024-04-03 15:13:27 -07:00
zfs	abd_iter_page: rework to handle multipage scatterlists	2024-04-19 16:41:31 -07:00