memcg: remove check for signal_pending() during rmdir()
After bf544fdc241da8 "memcg: move charges to root cgroup if use_hierarchy=0 in mem_cgroup_move_hugetlb_parent()", no memory reclaim will occur when removing a memory cgroup. If -EINTR is returned here, cgroup will show a warning. We don't need to handle any user interruption signal. Remove this. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -3691,9 +3691,6 @@ move_account:
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ret = -EBUSY;
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if (cgroup_task_count(cgrp) || !list_empty(&cgrp->children))
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goto out;
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ret = -EINTR;
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if (signal_pending(current))
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goto out;
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/* This is for making all *used* pages to be on LRU. */
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lru_add_drain_all();
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drain_all_stock_sync(memcg);
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