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| author | Richard Maina <quic_rmaina@quicinc.com> | 2024-05-29 20:09:55 +0200 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2024-05-29 21:52:26 +0200 |
| commit | 7c327d56597d8de1680cf24e956b704270d3d84a (patch) | |
| tree | 46e51f75c8a0a7c15e25938abbf0ab770ed05dce /Documentation/hwmon/lm90.rst | |
| parent | Linux 6.10-rc1 (diff) | |
| download | linux-7c327d56597d8de1680cf24e956b704270d3d84a.tar.xz linux-7c327d56597d8de1680cf24e956b704270d3d84a.zip | |
hwspinlock: Introduce hwspin_lock_bust()
When a remoteproc crashes or goes down unexpectedly this can result in
a state where locks held by the remoteproc will remain locked possibly
resulting in deadlock. This new API hwspin_lock_bust() allows
hwspinlock implementers to define a bust operation for freeing previously
acquired hwspinlocks after verifying ownership of the acquired lock.
Signed-off-by: Richard Maina <quic_rmaina@quicinc.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Chris Lew <quic_clew@quicinc.com>
Link: https://lore.kernel.org/r/20240529-hwspinlock-bust-v3-1-c8b924ffa5a2@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Diffstat (limited to 'Documentation/hwmon/lm90.rst')
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