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| author |   Sudheer Mogilappagari <sudheer.mogilappagari@intel.com> | 2017-07-12 05:46:07 -0400 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2017-08-25 14:52:52 -0700 |
| commit | 2bf01935ec5362aee6ff9ffc2476043af321aa42 (patch) | |
| tree | ccd7653782c567b8b8a0762ffc3fae379a249737 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | i40e: prevent changing ITR if adaptive-rx/tx enabled (diff) | |
| download | wireguard-linux-2bf01935ec5362aee6ff9ffc2476043af321aa42.tar.xz wireguard-linux-2bf01935ec5362aee6ff9ffc2476043af321aa42.zip | |
i40e: synchronize nvmupdate command and adminq subtask
During NVM update, state machine gets into unrecoverable state because
i40e_clean_adminq_subtask can get scheduled after the admin queue
command but before other state variables are updated. This causes
incorrect input to i40e_nvmupd_check_wait_event and state transitions
don't happen.
This issue existed before but surfaced after commit 373149fc99a0
("i40e: Decrease the scope of rtnl lock")
This fix adds locking around admin queue command and update of
state variables so that adminq_subtask will have accurate information
whenever it gets scheduled.
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions