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mm: memcontrol: remove dead code from memory_max_write()

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When the reclaim loop in memory_max_write() is ^C'd or similar, we set err
to -EINTR.  But we don't return err.  Once the limit is set, we always
return success (nbytes).  Delete the dead code.

Link: http://lkml.kernel.org/r/20191022201518.341216-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johannes Weiner 2019-11-30 17:50:06 -08:00 committed by Linus Torvalds
parent 9da83f3fc7
commit 7249c9f01d
1 changed files with 1 additions and 3 deletions
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4
mm/memcontrol.c
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@ -6139,10 +6139,8 @@ static ssize_t memory_max_write(struct kernfs_open_file *of,
if (nr_pages <= max) if (nr_pages <= max)
break; break;
if (signal_pending(current)) { if (signal_pending(current))
err = -EINTR;
break; break;
}
if (!drained) { if (!drained) {
drain_all_stock(memcg); drain_all_stock(memcg);