Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | "Paul E. McKenney" <> | Subject | [PATCH rcu 1/9] srcu: Release early_srcu resources when no longer in use | Date | Wed, 4 Jan 2023 16:28:45 -0800 |
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From: Zqiang <qiang1.zhang@intel.com>
Kernels built with the CONFIG_TREE_SRCU Kconfig option set and then booted with rcupdate.rcu_self_test=1 and srcutree.convert_to_big=1 will test Tree SRCU during early boot. The early_srcu structure's srcu_node array will be allocated when init_srcu_struct_fields() is invoked, but after the test completes this early_srcu structure will not be used.
This commit therefore invokes cleanup_srcu_struct() to free that srcu_node structure.
Signed-off-by: Zqiang <qiang1.zhang@intel.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> --- kernel/rcu/update.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c index f5e6a2f95a2a0..a5b4abbee6439 100644 --- a/kernel/rcu/update.c +++ b/kernel/rcu/update.c @@ -586,6 +586,7 @@ static int rcu_verify_early_boot_tests(void) early_boot_test_counter++; srcu_barrier(&early_srcu); WARN_ON_ONCE(!poll_state_synchronize_srcu(&early_srcu, early_srcu_cookie)); + cleanup_srcu_struct(&early_srcu); } if (rcu_self_test_counter != early_boot_test_counter) { WARN_ON(1); -- 2.31.1.189.g2e36527f23
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