| Message ID | 20221110073013.1302564-1-qiang1.zhang@intel.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 31fe843d23427c99f43fb05ad61c9318d27f4372 |
| Headers | show |
| Series | srcu: Release early_srcu resources when no longer in use | expand |
On Thu, Nov 10, 2022 at 03:30:13PM +0800, Zqiang wrote: > When the "rcupdate.rcu_self_test = 1" is set in bootargs and CONFIG_SRCU > option is enabled, the early_srcu will be tested, currently, for TREE SRCU, > if "srcutree.convert_to_big = 1" is set, the srcu_node structure will be > allocated at invoke init_srcu_struct_fields() time, after the test is > completed, the early_srcu will not be used. > Therefore, this commit invoke cleanup_srcu_struct() to release srcu_node > structure. > > Signed-off-by: Zqiang <qiang1.zhang@intel.com> Queued for further review and testing, thank you! Also with the usual wordsmithing, so please check. Thanx, Paul > --- > kernel/rcu/update.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c > index 738842c4886b..a05e23648c6b 100644 > --- a/kernel/rcu/update.c > +++ b/kernel/rcu/update.c > @@ -589,6 +589,7 @@ 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) { > -- > 2.25.1 >
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c index 738842c4886b..a05e23648c6b 100644 --- a/kernel/rcu/update.c +++ b/kernel/rcu/update.c @@ -589,6 +589,7 @@ 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) {
When the "rcupdate.rcu_self_test = 1" is set in bootargs and CONFIG_SRCU option is enabled, the early_srcu will be tested, currently, for TREE SRCU, if "srcutree.convert_to_big = 1" is set, the srcu_node structure will be allocated at invoke init_srcu_struct_fields() time, after the test is completed, the early_srcu will not be used. Therefore, this commit invoke cleanup_srcu_struct() to release srcu_node structure. Signed-off-by: Zqiang <qiang1.zhang@intel.com> --- kernel/rcu/update.c | 1 + 1 file changed, 1 insertion(+)