Messages in this thread Patch in this message | | | From | Ming Lei <> | Subject | [PATCH V4 1/7] mm: memcontrol: add helper of memcg_get_e_css | Date | Fri, 6 Aug 2021 16:02:56 +0800 |
| |
And helper of memcg_get_e_css() so that the consumer needn't to call cgroup_get_e_css(cgroup, &memory_cgrp_subsys) directly, since &memory_cgrp_subsys has to be used in case that MEMCG is enabled.
Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ming Lei <ming.lei@redhat.com> --- include/linux/memcontrol.h | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index bfe5c486f4ad..741852addbd7 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1101,6 +1101,11 @@ unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, gfp_t gfp_mask, unsigned long *total_scanned); +static inline +struct cgroup_subsys_state *memcg_get_e_css(struct cgroup_subsys_state *css) +{ + return cgroup_get_e_css(css->cgroup, &memory_cgrp_subsys); +} #else /* CONFIG_MEMCG */ #define MEM_CGROUP_ID_SHIFT 0 @@ -1456,6 +1461,11 @@ unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, { return 0; } +static inline +struct cgroup_subsys_state *memcg_get_e_css(struct cgroup_subsys_state *css) +{ + return NULL; +} #endif /* CONFIG_MEMCG */ static inline void __inc_lruvec_kmem_state(void *p, enum node_stat_item idx) -- 2.31.1
| |