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From: Hillf Danton <hdanton@sina.com>
To: Mina Almasry <almasrymina@google.com>
Cc: mike.kravetz@oracle.com, shuah@kernel.org, rientjes@google.com,
	shakeelb@google.com, gthelen@google.com,
	akpm@linux-foundation.org, khalid.aziz@oracle.com,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	linux-kselftest@vger.kernel.org, cgroups@vger.kernel.org,
	aneesh.kumar@linux.vnet.ibm.com, mkoutny@suse.com,
	Hillf Danton <hdanton@sina.com>
Subject: Re: [PATCH v4 3/9] hugetlb_cgroup: add reservation accounting for private mappings
Date: Wed, 11 Sep 2019 16:35:31 +0800	[thread overview]
Message-ID: <20190911083531.12272-1-hdanton@sina.com> (raw)
In-Reply-To: <20190910233146.206080-1-almasrymina@google.com>


On Tue, 10 Sep 2019 16:31:40 -0700 From:   Mina Almasry <almasrymina@google.com>
> 
> @@ -3203,6 +3225,8 @@ static void hugetlb_vm_op_close(struct vm_area_struct *vma)
>  		gbl_reserve = hugepage_subpool_put_pages(spool, reserve);
>  		hugetlb_acct_memory(h, -gbl_reserve);
>  	}

Double thanks for cleaning up the gbl typo.

> +
> +	kref_put(&resv->refs, resv_map_release);
>  }
> 
> 
> @@ -4569,11 +4594,29 @@ int hugetlb_reserve_pages(struct inode *inode,
>  		chg = region_chg(resv_map, from, to);
> 
>  	} else {
> +		/* Private mapping. */
> +		chg = to - from;
> +
> +		if (hugetlb_cgroup_charge_cgroup(
> +					hstate_index(h),
> +					chg * pages_per_huge_page(h),
> +					&h_cg, true)) {
> +			return -ENOMEM;
> +		}
> +
>  		resv_map = resv_map_alloc();
>  		if (!resv_map)
>  			return -ENOMEM;

Put charge after allocating resv_map.

Other than that
Acked-by: Hillf Danton <hdanton@sina.com>



      parent reply	other threads:[~2019-09-11  8:35 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-10 23:31 [PATCH v4 0/9] hugetlb_cgroup: Add hugetlb_cgroup reservation limits Mina Almasry
2019-09-10 23:31 ` [PATCH v4 1/9] hugetlb_cgroup: Add hugetlb_cgroup reservation counter Mina Almasry
2019-09-16 23:43   ` shuah
2019-09-10 23:31 ` [PATCH v4 2/9] hugetlb_cgroup: add interface for charge/uncharge hugetlb reservations Mina Almasry
2019-09-17  1:29   ` shuah
2019-09-10 23:31 ` [PATCH v4 3/9] hugetlb_cgroup: add reservation accounting for private mappings Mina Almasry
2019-09-10 23:31 ` [PATCH v4 4/9] hugetlb: region_chg provides only cache entry Mina Almasry
2019-09-16 22:17   ` Mike Kravetz
2019-09-10 23:31 ` [PATCH v4 5/9] hugetlb: remove duplicated code Mina Almasry
2019-09-16 22:25   ` Mike Kravetz
2019-09-10 23:31 ` [PATCH v4 6/9] hugetlb: disable region_add file_region coalescing Mina Almasry
2019-09-16 23:57   ` Mike Kravetz
2019-09-17  0:16     ` Mina Almasry
2019-09-10 23:31 ` [PATCH v4 7/9] hugetlb_cgroup: add accounting for shared mappings Mina Almasry
2019-09-10 23:31 ` [PATCH v4 8/9] hugetlb_cgroup: Add hugetlb_cgroup reservation tests Mina Almasry
2019-09-17  1:52   ` shuah
2019-09-19  1:53     ` Mina Almasry
2019-09-10 23:31 ` [PATCH v4 9/9] hugetlb_cgroup: Add hugetlb_cgroup reservation docs Mina Almasry
2019-09-17  1:58   ` shuah
2019-09-11  8:35 ` Hillf Danton [this message]

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