Alek P 0ea05c64f8 Implemented zpool scrub pause/resume ... Currently, there is no way to pause a scrub. Pausing may be useful when the pool is busy with other I/O to preserve bandwidth. This patch adds the ability to pause and resume scrubbing. This is achieved by maintaining a persistent on-disk scrub state. While the state is 'paused' we do not scrub any more blocks. We do however perform regular scan housekeeping such as freeing async destroyed and deadlist blocks while paused. Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Thomas Caputi <tcaputi@datto.com> Reviewed-by: Serapheim Dimitropoulos <serapheimd@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Alek Pinchuk <apinchuk@datto.com> Closes #6167		2017-07-06 22:16:13 -07:00
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callbacks	OpenZFS 7503 - zfs-test should tail ::zfs_dbgmsg on test failure	2017-04-12 13:36:48 -07:00
cmd	Enable remaining tests	2017-05-22 12:34:32 -04:00
include	Implemented zpool scrub pause/resume	2017-07-06 22:16:13 -07:00
tests	Implemented zpool scrub pause/resume	2017-07-06 22:16:13 -07:00
Makefile.am	OpenZFS 7503 - zfs-test should tail ::zfs_dbgmsg on test failure	2017-04-12 13:36:48 -07:00