diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sched/mm.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h index 1a80fb128e74..d5ece7a9a403 100644 --- a/include/linux/sched/mm.h +++ b/include/linux/sched/mm.h @@ -279,6 +279,7 @@ static inline void memalloc_nocma_restore(unsigned int flags) #endif #ifdef CONFIG_MEMCG +DECLARE_PER_CPU(struct mem_cgroup *, int_active_memcg); /** * set_active_memcg - Starts the remote memcg charging scope. * @memcg: memcg to charge. @@ -293,8 +294,16 @@ static inline void memalloc_nocma_restore(unsigned int flags) static inline struct mem_cgroup * set_active_memcg(struct mem_cgroup *memcg) { - struct mem_cgroup *old = current->active_memcg; - current->active_memcg = memcg; + struct mem_cgroup *old; + + if (in_interrupt()) { + old = this_cpu_read(int_active_memcg); + this_cpu_write(int_active_memcg, memcg); + } else { + old = current->active_memcg; + current->active_memcg = memcg; + } + return old; } #else |