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hugetlb_cgroup: fix wrong hugetlb cgroup numa stat

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[ Upstream commit 2727cfe4072a35ce813e3708f74c135de7da8897 ]

We forget to set cft->private for numa stat file.  As a result, numa stat
of hstates[0] is always showed for all hstates.  Encode the hstates index
into cft->private to fix this issue.

Link: https://lkml.kernel.org/r/20220723073804.53035-1-linmiaohe@huawei.com
Fixes: f47761999052 ("hugetlb: add hugetlb.*.numa_stat file")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mina Almasry <almasrymina@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaohe Lin 2022-07-23 15:38:04 +08:00 committed by Greg Kroah-Hartman
parent 700aa4e11a
commit cec22fc529
1 changed files with 1 additions and 0 deletions
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mm/hugetlb_cgroup.c
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@ -772,6 +772,7 @@ static void __init __hugetlb_cgroup_file_dfl_init(int idx)
/* Add the numa stat file */
cft = &h->cgroup_files_dfl[6];
snprintf(cft->name, MAX_CFTYPE_NAME, "%s.numa_stat", buf);
cft->private = MEMFILE_PRIVATE(idx, 0);
cft->seq_show = hugetlb_cgroup_read_numa_stat;
cft->flags = CFTYPE_NOT_ON_ROOT;