Commit Graph

7 Commits

Author SHA1 Message Date
Turbo Fredriksson f9e459d143 Use setmntent() OR fopen()
For the same reasons it's used in libzfs_init(), this was just
overlooked because zinject gets minimal use.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1498
2013-08-15 10:09:09 -07:00
George.Wilson cc92e9d0c3 3246 ZFS I/O deadman thread
Reviewed by: Matt Ahrens <matthew.ahrens@delphix.com>
Reviewed by: Eric Schrock <eric.schrock@delphix.com>
Reviewed by: Christopher Siden <chris.siden@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>

NOTES: This patch has been reworked from the original in the
following ways to accomidate Linux ZFS implementation

*) Usage of the cyclic interface was replaced by the delayed taskq
   interface.  This avoids the need to implement new compatibility
   code and allows us to rely on the existing taskq implementation.

*) An extern for zfs_txg_synctime_ms was added to sys/dsl_pool.h
   because declaring externs in source files as was done in the
   original patch is just plain wrong.

*) Instead of panicing the system when the deadman triggers a
   zevent describing the blocked vdev and the first pending I/O
   is posted.  If the panic behavior is desired Linux provides
   other generic methods to panic the system when threads are
   observed to hang.

*) For reference, to delay zios by 30 seconds for testing you can
   use zinject as follows: 'zinject -d <vdev> -D30 <pool>'

References:
  illumos/illumos-gate@283b84606b
  https://www.illumos.org/issues/3246

Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1396
2013-05-01 17:05:52 -07:00
Brian Behlendorf 9a616b5d17 Documentation updates
Minor Linux specific documentation updates to the comments and
man pages.
2011-02-04 16:14:34 -08:00
Brian Behlendorf e75c13c353 Fix gcc missing case warnings
Gcc ASSERT() missing cases are impossible

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2010-08-27 15:34:03 -07:00
Brian Behlendorf 572e285762 Update to onnv_147
This is the last official OpenSolaris tag before the public
development tree was closed.
2010-08-26 14:24:34 -07:00
Brian Behlendorf 428870ff73 Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
Brian Behlendorf 172bb4bd5e Move the world out of /zfs/ and seperate out module build tree 2008-12-11 11:08:09 -08:00