diff options
| author |   Wang Long <wanglong19@meituan.com> | 2018-06-07 17:07:19 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-07 17:34:36 -0700 |
| commit | 9ccc361716362e8abb01d9944f8df97b4aac3e23 (patch) | |
| tree | 717c399f854389792ee249a15db2d34661604f2a | |
| parent | tmpfs: allow decoding a file handle of an unlinked file (diff) | |
| download | linux-dev-9ccc361716362e8abb01d9944f8df97b4aac3e23.tar.xz linux-dev-9ccc361716362e8abb01d9944f8df97b4aac3e23.zip | |
memcg: writeback: use memcg->cgwb_list directly
mem_cgroup_cgwb_list is a very simple wrapper and it will never be used
outside of code under CONFIG_CGROUP_WRITEBACK. so use memcg->cgwb_list
directly.
Link: http://lkml.kernel.org/r/1524406173-212182-1-git-send-email-wanglong19@meituan.com
Signed-off-by: Wang Long <wanglong19@meituan.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | include/linux/memcontrol.h | 1 | ||||
| -rw-r--r-- | mm/backing-dev.c | 4 | ||||
| -rw-r--r-- | mm/memcontrol.c | 5 |
3 files changed, 2 insertions, 8 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 891945507044..10d741e8fe51 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1097,7 +1097,6 @@ static inline void dec_lruvec_page_state(struct page *page, #ifdef CONFIG_CGROUP_WRITEBACK -struct list_head *mem_cgroup_cgwb_list(struct mem_cgroup *memcg); struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb); void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages, unsigned long *pheadroom, unsigned long *pdirty, diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 8fe3ebd6ac00..347cc834c04a 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -557,7 +557,7 @@ static int cgwb_create(struct backing_dev_info *bdi, memcg = mem_cgroup_from_css(memcg_css); blkcg_css = cgroup_get_e_css(memcg_css->cgroup, &io_cgrp_subsys); blkcg = css_to_blkcg(blkcg_css); - memcg_cgwb_list = mem_cgroup_cgwb_list(memcg); + memcg_cgwb_list = &memcg->cgwb_list; blkcg_cgwb_list = &blkcg->cgwb_list; /* look up again under lock and discard on blkcg mismatch */ @@ -736,7 +736,7 @@ static void cgwb_bdi_unregister(struct backing_dev_info *bdi) */ void wb_memcg_offline(struct mem_cgroup *memcg) { - struct list_head *memcg_cgwb_list = mem_cgroup_cgwb_list(memcg); + struct list_head *memcg_cgwb_list = &memcg->cgwb_list; struct bdi_writeback *wb, *next; spin_lock_irq(&cgwb_lock); diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 8bab4660e6aa..2751259f0a76 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3562,11 +3562,6 @@ static int mem_cgroup_oom_control_write(struct cgroup_subsys_state *css, #ifdef CONFIG_CGROUP_WRITEBACK -struct list_head *mem_cgroup_cgwb_list(struct mem_cgroup *memcg) -{ - return &memcg->cgwb_list; -} - static int memcg_wb_domain_init(struct mem_cgroup *memcg, gfp_t gfp) { return wb_domain_init(&memcg->cgwb_domain, gfp); |