Tom Caputi c40a1124e1 Fix consistency of ztest_device_removal_active ... ztest currently uses the boolean flag ztest_device_removal_active to protect some tests that may not run successfully if they occur at the same time as ztest_device_removal(). Unfortunately, in the event that ztest is in the middle of a device removal when it decides to issue a SIGKILL, the device removal will be automatically restarted (without setting the flag) when the pool is re-imported on the next run. This patch corrects this by ensuring that any in-progress removals are completed before running further tests after the re-import. This patch also makes a few small changes to prevent race conditions involving the creation and destruction of spa->spa_vdev_removal, since this field is not protected by any locks. Some checks that may run concurrently with setting / unsetting this field have been updated to check spa->spa_removing_phys.sr_state instead. The most significant change here is that spa_removal_get_stats() no longer accounts for in-flight work done, since that could result in a NULL pointer dereference. Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com> Closes #8105		2018-11-28 20:47:09 -08:00
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.gitignore	Add .gitignore files to exclude build products	2010-01-08 11:35:17 -08:00
Makefile.am	Add libzutil for libzfs or libzpool consumers	2018-11-05 11:22:33 -08:00
ztest.c	Fix consistency of ztest_device_removal_active	2018-11-28 20:47:09 -08:00