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memcg: writeback: use memcg->cgwb_list directly

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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/[email protected]
Signed-off-by: Wang Long <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Cc: Johannes Weiner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Wang Long 2018-06-07 17:07:19 -07:00 • committed by Linus Torvalds
commit 9ccc361716
3 changed files with 2 additions and 8 deletions
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5
mm/memcontrol.c
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@ -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);