The commit is pushed to "branch-rh7-3.10.0-693.1.1.vz7.37.x-ovz" and will appear at https://src.openvz.org/scm/ovz/vzkernel.git after rh7-3.10.0-693.1.1.vz7.37.21 ------> commit f8168436b4eb925096fe7f14bfc18b0789aa6b3c Author: Pavel Tikhomirov <ptikhomi...@virtuozzo.com> Date: Tue Nov 7 12:06:19 2017 +0300
ve/cgroup: remove rcu_read_lock from cgroup_get_ve_root It is likely a leftover from __cgroup_path where it protects cgrp->name in cgroup_get_ve_root there is nothing rcu_dereferenced, also in cgroup_is_descendant there is no rcu for cgrp->parent. https://jira.sw.ru/browse/PSBM-69678 Signed-off-by: Pavel Tikhomirov <ptikhomi...@virtuozzo.com> Reviewed-by: Andrey Ryabinin <aryabi...@virtuozzo.com> --- kernel/cgroup.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index f960c34..06863de 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -4284,7 +4284,6 @@ static struct cgroup *cgroup_get_ve_root(struct cgroup *cgrp) { struct cgroup *ve_root = NULL; - rcu_read_lock(); do { if (test_bit(CGRP_VE_ROOT, &cgrp->flags)) { ve_root = cgrp; @@ -4292,7 +4291,6 @@ static struct cgroup *cgroup_get_ve_root(struct cgroup *cgrp) } cgrp = cgrp->parent; } while (cgrp); - rcu_read_unlock(); return ve_root; } _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel