X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Flttng-statedump-impl.c;h=22e3628ba459c9d0b56db7d2e9b90417ce71fed8;hb=a3d0aa6872fb70b8162e6e1dc2b3aaad112213eb;hp=0593f4c8bd22ee3e6fbd62f2535ba08a4e97eff0;hpb=a6837bed45b070b8a90292f92e3adc81c974e324;p=lttng-modules.git diff --git a/src/lttng-statedump-impl.c b/src/lttng-statedump-impl.c index 0593f4c8..22e3628b 100644 --- a/src/lttng-statedump-impl.c +++ b/src/lttng-statedump-impl.c @@ -601,21 +601,8 @@ void lttng_statedump_process_ns(struct lttng_kernel_session *session, user_ns = user_ns ? user_ns->parent : NULL; } while (user_ns); - /* - * Back and forth on locking strategy within Linux upstream for nsproxy. - * See Linux upstream commit 728dba3a39c66b3d8ac889ddbe38b5b1c264aec3 - * "namespaces: Use task_lock and not rcu to protect nsproxy" - * for details. - */ -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,17,0) || \ - LTTNG_UBUNTU_KERNEL_RANGE(3,13,11,36, 3,14,0,0) || \ - LTTNG_UBUNTU_KERNEL_RANGE(3,16,1,11, 3,17,0,0) || \ - LTTNG_RHEL_KERNEL_RANGE(3,10,0,229,13,0, 3,11,0,0,0,0)) proxy = p->nsproxy; -#else - rcu_read_lock(); - proxy = task_nsproxy(p); -#endif + if (proxy) { #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) trace_lttng_statedump_process_cgroup_ns(session, p, proxy->cgroup_ns); @@ -631,14 +618,6 @@ void lttng_statedump_process_ns(struct lttng_kernel_session *session, trace_lttng_statedump_process_time_ns(session, p, proxy->time_ns); #endif } -#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,17,0) || \ - LTTNG_UBUNTU_KERNEL_RANGE(3,13,11,36, 3,14,0,0) || \ - LTTNG_UBUNTU_KERNEL_RANGE(3,16,1,11, 3,17,0,0) || \ - LTTNG_RHEL_KERNEL_RANGE(3,10,0,229,13,0, 3,11,0,0,0,0)) - /* (nothing) */ -#else - rcu_read_unlock(); -#endif } static