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| author | Johannes Weiner <hannes@cmpxchg.org> | 2015-11-05 18:50:26 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:34:48 -0800 |
| commit | 6071ca5201066f4b2a61cfb693dd186d6bc6e9f3 (patch) | |
| tree | 2ec2fa58fc43986025267568feb96c7b86a2722c /mm/hugetlb_cgroup.c | |
| parent | f5fc3c5d817435970aa301d066820a9ac12c8120 (diff) | |
| download | op-kernel-dev-6071ca5201066f4b2a61cfb693dd186d6bc6e9f3.zip op-kernel-dev-6071ca5201066f4b2a61cfb693dd186d6bc6e9f3.tar.gz | |
mm: page_counter: let page_counter_try_charge() return bool
page_counter_try_charge() currently returns 0 on success and -ENOMEM on
failure, which is surprising behavior given the function name.
Make it follow the expected pattern of try_stuff() functions that return a
boolean true to indicate success, or false for failure.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/hugetlb_cgroup.c')
| -rw-r--r-- | mm/hugetlb_cgroup.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c index 6e00574..33d59ab 100644 --- a/mm/hugetlb_cgroup.c +++ b/mm/hugetlb_cgroup.c @@ -186,7 +186,8 @@ again: } rcu_read_unlock(); - ret = page_counter_try_charge(&h_cg->hugepage[idx], nr_pages, &counter); + if (!page_counter_try_charge(&h_cg->hugepage[idx], nr_pages, &counter)) + ret = -ENOMEM; css_put(&h_cg->css); done: *ptr = h_cg; |
