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f4e66db401
Freeing an ABD can take sleeping locks to update various stats. We aren't allowed to sleep on an interrupt handler. So, move the free off to the io_done callback. We should never have been freeing things in the interrupt handler, but we got away with it because we were usually freeing a linear ABD, which at most is returning two objects to a cache and never sleeping. Scatter ABDs can be used now, and those have more complex locking. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Rob Norris <rob.norris@klarasystems.com> Closes #16687 |
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