Steven Hartland 3e856909b7 Fix expandsz 16.0E vals and vdev_min_asize of RAIDZ children ... When a member of a RAIDZ has been replaced with a device smaller than the original, then the top level vdev can report its expand size as 16.0E. The reduced child asize causes the RAIDZ to have a vdev_asize lower than its vdev_max_asize which then results in an underflow during the calculation of the parents expand size. Fix this by updating the vdev_asize if it shrinks, which is already protected by a check against vdev_min_asize so should always be safe. Also for RAIDZ vdevs, ensure that the sum of their child vdev_min_asize is always greater than the parents vdev_min_size. Fixes: https://www.illumos.org/issues/7885 MFC after: 2 weeks Sponsored by: Multiplay		2017-04-03 13:11:28 +00:00
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common	MFV r302662: 6447 handful of nvpair cleanups	2016-09-01 15:17:39 +00:00
uts	Fix expandsz 16.0E vals and vdev_min_asize of RAIDZ children	2017-04-03 13:11:28 +00:00
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