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| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-07-29 16:01:06 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-09-11 20:25:53 -0700 |
| commit | c37213c5eaaf4c9a6249b14b39426285a4ea89c5 (patch) | |
| tree | 814f5086c9e332ca747c66c2af51612531ccda29 /mm/hugetlb_cgroup.c | |
| parent | 99249387cf0d1e4525887c2292c4249edf0d8eea (diff) | |
| download | linux-c37213c5eaaf4c9a6249b14b39426285a4ea89c5.tar.gz linux-c37213c5eaaf4c9a6249b14b39426285a4ea89c5.tar.bz2 linux-c37213c5eaaf4c9a6249b14b39426285a4ea89c5.zip | |
hugetlb_cgroup: use helper for_each_hstate and hstate_index
Use helper for_each_hstate and hstate_index to iterate the hstate and get
the hstate index. Minor readability improvement.
Link: https://lkml.kernel.org/r/20220729080106.12752-6-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Mina Almasry <almasrymina@google.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/hugetlb_cgroup.c')
| -rw-r--r-- | mm/hugetlb_cgroup.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c index 2affccfe59f1..f61d132df52b 100644 --- a/mm/hugetlb_cgroup.c +++ b/mm/hugetlb_cgroup.c @@ -75,11 +75,11 @@ parent_hugetlb_cgroup(struct hugetlb_cgroup *h_cg) static inline bool hugetlb_cgroup_have_usage(struct hugetlb_cgroup *h_cg) { - int idx; + struct hstate *h; - for (idx = 0; idx < hugetlb_max_hstate; idx++) { + for_each_hstate(h) { if (page_counter_read( - hugetlb_cgroup_counter_from_cgroup(h_cg, idx))) + hugetlb_cgroup_counter_from_cgroup(h_cg, hstate_index(h)))) return true; } return false; @@ -225,17 +225,14 @@ static void hugetlb_cgroup_css_offline(struct cgroup_subsys_state *css) struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_css(css); struct hstate *h; struct page *page; - int idx; do { - idx = 0; for_each_hstate(h) { spin_lock_irq(&hugetlb_lock); list_for_each_entry(page, &h->hugepage_activelist, lru) - hugetlb_cgroup_move_parent(idx, h_cg, page); + hugetlb_cgroup_move_parent(hstate_index(h), h_cg, page); spin_unlock_irq(&hugetlb_lock); - idx++; } cond_resched(); } while (hugetlb_cgroup_have_usage(h_cg)); |