summaryrefslogtreecommitdiff
path: root/tools/perf/scripts/python/export-to-postgresql.py
diff options
context:
space:
mode:
authorUladzislau Rezki (Sony) <urezki@gmail.com>2023-04-04 16:13:00 +0200
committerPaul E. McKenney <paulmck@kernel.org>2023-05-09 17:26:21 -0700
commitf32276a37652a9ce05db27cdfb40ac3e3fc98f9f (patch)
treea111e1d34cb2a7e9b7a2c63d10ae421712535992 /tools/perf/scripts/python/export-to-postgresql.py
parentcdfa0f6fa6b7183c062046043b649b9a91e3ac52 (diff)
rcu/kvfree: Add debug check for GP complete for kfree_rcu_cpu list
Under low-memory conditions, kvfree_rcu() will use each object's rcu_head structure to queue objects in a singly linked list headed by the kfree_rcu_cpu structure's ->head field. This list is passed to call_rcu() as a unit, but there is no indication of which grace period this list needs to wait for. This in turn prevents adding debug checks in the kfree_rcu_work() as was done for the two page-of-pointers channels in the kfree_rcu_cpu structure. This commit therefore adds a ->head_free_gp_snap field to the kfree_rcu_cpu_work structure to record this grace-period number. It also adds a WARN_ON_ONCE() to kfree_rcu_monitor() that checks to make sure that the required grace period has in fact elapsed. [ paulmck: Fix kerneldoc issue raised by Stephen Rothwell. ] Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.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