mirror_zfs/module
Olaf Faaland 2644784f49 Report duration and error in mmp_history entries
After an MMP write completes, update the relevant mmp_history entry
with the time between submission and completion, and the error
status of the write.

[faaland1@toss3a zfs]$ cat /proc/spl/kstat/zfs/pool/multihost
39 0 0x01 100 8800 69147946270893 72723903122926
id       txg     timestamp  error  duration   mmp_delay    vdev_guid
10607    1166    1518985089 0      138301     637785455    4882...
10608    1166    1518985089 0      136154     635407747    1151...
10609    1166    1518985089 0      803618560  633048078    9740...
10610    1166    1518985090 0      144826     633048078    4882...
10611    1166    1518985090 0      164527     666187671    1151...

Where duration = gethrtime_in_done_fn - gethrtime_at_submission, and
error = zio->io_error.

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Olaf Faaland <faaland1@llnl.gov>
Closes #7190
2018-03-14 16:10:37 -07:00
..
avl Fix uninitialized variable in avl_add() 2016-07-25 14:21:34 -07:00
icp Linux 4.14 compat: CONFIG_GCC_PLUGIN_RANDSTRUCT 2017-12-04 17:21:39 -08:00
nvpair Linux 4.14 compat: CONFIG_GCC_PLUGIN_RANDSTRUCT 2017-12-04 17:21:39 -08:00
unicode codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
zcommon Fix buffer overflow in dsl_dataset_name() 2017-07-24 12:56:49 -07:00
zfs Report duration and error in mmp_history entries 2018-03-14 16:10:37 -07:00
zpios codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
.gitignore Improve gitignore 2017-05-25 10:14:13 -07:00
Makefile.in GZIP compression offloading with QAT accelerator 2017-03-22 17:58:47 -07:00