Paul Dagnelie ebdb770554 Prevent metaslab_sync panic due to spa_final_dirty_txg ... If a pool enables the SPACEMAP_HISTOGRAM feature shortly before being exported, we can enter a situation that causes a kernel panic. Any metaslabs that are loaded during the final dirty txg and haven't already been condensed will cause metaslab_sync to proceed after the final dirty txg so that the condense can be performed, which there are assertions to prevent. Because of the nature of this issue, there are a number of ways we can enter this state. Rather than try to prevent each of them one by one, potentially missing some edge cases, we instead cut it off at the point of intersection; by preventing metaslab_sync from proceeding if it would only do so to perform a condense and we're past the final dirty txg, we preserve the utility of the existing asserts while preventing this particular issue. Reviewed-by: Matt Ahrens <matt@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Paul Dagnelie <pcd@delphix.com> Closes #9185 Closes #9186 Closes #9231 Closes #9253		2020-01-22 13:48:58 -08:00
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avl	Update build system and packaging	2018-05-29 16:00:33 -07:00
icp	Minor style cleanup	2019-09-25 11:27:49 -07:00
lua	Linux 5.3: Fix switch() fall though compiler errors	2019-09-25 11:27:50 -07:00
nvpair	Use NV_ENCODE_NATIVE for nvlist encoding variable	2019-04-26 11:24:31 -07:00
spl	Use smaller default slack/delta value for schedule_hrtimeout_range()	2020-01-22 13:48:58 -08:00
unicode	Update build system and packaging	2018-05-29 16:00:33 -07:00
zcommon	Minor style cleanup	2019-09-25 11:27:49 -07:00
zfs	Prevent metaslab_sync panic due to spa_final_dirty_txg	2020-01-22 13:48:58 -08:00
.gitignore	Prepare SPL repo to merge with ZFS repo	2018-05-29 14:51:39 -07:00
Makefile.in	Linux 5.3 compat: Makefile subdir-m no longer supported	2019-09-25 11:27:50 -07:00