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4a4f7b019f
The simplest thing first: add the FDT and log objects to the list of objects to be considered when checking for leaks. The rest is based on a conceptual change in all of this patch stack: a block on disk with a 'D' bit is not necessarily in the DDT at all (pruned), or in the DDT ZAPs (still on the log). As such, walking the DDT up front is difficult (for all the reasons that walking an unflushed log is difficult) and not really useful, since it's not a reflection of what's on disk anyway. Instead, we rework things here to be more like the BRT checks. When we see a dedup'd block, we look it up in the DDT, consume a refcount, and for the second-or-later instances, count them as duplicates. Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Co-authored-by: Allan Jude <allan@klarasystems.com> Co-authored-by: Don Brady <don.brady@klarasystems.com> Signed-off-by: Rob Norris <rob.norris@klarasystems.com> Sponsored-by: Klara, Inc. Sponsored-by: iXsystems, Inc. Closes #16277 |
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