diff options
| author | John Stultz <jstultz@google.com> | 2023-02-21 22:02:35 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-03-07 21:13:57 +0300 |
| commit | b63343207da21179d82df933f42a1725a53b9a63 (patch) | |
| tree | fe106effbc2a2f3ded0466d0790d4103dab3a914 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | fe15c26ee26efa11741a7b632e9f23b01aca4cc6 (diff) | |
| download | linux-b63343207da21179d82df933f42a1725a53b9a63.tar.xz | |
locktorture: Add nested_[un]lock() hooks and nlocks parameter
In order to extend locktorture to support lock nesting, add
nested_lock() and nested_unlock() hooks to the torture ops.
These take a 32bit lockset mask which is generated at random,
so some number of locks will be taken before the main lock is
taken and released afterwards.
Additionally, add nested_locks module parameter to allow
specifying the number of nested locks to be used.
This has been helpful to uncover issues in the proxy-exec
series development.
This was inspired by locktorture extensions originally implemented
by Connor O'Brien, for stress testing the proxy-execution series:
https://lore.kernel.org/lkml/20221003214501.2050087-12-connoro@google.com/
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Valentin Schneider <vschneid@redhat.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: kernel-team@android.com
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Co-developed-by: Connor O'Brien <connoro@google.com>
Signed-off-by: Connor O'Brien <connoro@google.com>
Signed-off-by: John Stultz <jstultz@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions