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33dba8c792
It may happen that scan bookmark points to a block that was turned into a part of a big hole. In such case dsl_scan_visitbp() may skip it and dsl_scan_check_resume() will not be called for it. As result new scan suspend won't be possible until the end of the object, that may take hours if the object is a multi-terabyte ZVOL on a slow HDD pool, stretching TXG to all that time, creating all sorts of problems. This patch changes the resume condition to any greater or equal block, so even if we miss the bookmarked block, the next one we find will delete the bookmark, allowing new suspend. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Sponsored-By: iXsystems, Inc. Closes #13643 |
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