From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx113.postini.com [74.125.245.113]) by kanga.kvack.org (Postfix) with SMTP id 868FC6B13F2 for ; Fri, 10 Feb 2012 16:37:15 -0500 (EST) Received: from /spool/local by e28smtp04.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sat, 11 Feb 2012 03:07:12 +0530 Received: from d28av04.in.ibm.com (d28av04.in.ibm.com [9.184.220.66]) by d28relay04.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q1ALb8gt4395102 for ; Sat, 11 Feb 2012 03:07:08 +0530 Received: from d28av04.in.ibm.com (loopback [127.0.0.1]) by d28av04.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q1ALb8a0001554 for ; Sat, 11 Feb 2012 08:37:08 +1100 From: "Aneesh Kumar K.V" Subject: [RFC PATCH 2/6] hugetlbfs: Add usage and max usage files to hugetlb cgroup Date: Sat, 11 Feb 2012 03:06:42 +0530 Message-Id: <1328909806-15236-3-git-send-email-aneesh.kumar@linux.vnet.ibm.com> In-Reply-To: <1328909806-15236-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1328909806-15236-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, mgorman@suse.de, kamezawa.hiroyu@jp.fujitsu.com, dhillf@gmail.com, aneesh.kumar@linux.vnet.ibm.com From: "Aneesh Kumar K.V" Signed-off-by: Aneesh Kumar K.V --- fs/hugetlbfs/hugetlb_cgroup.c | 12 ++++++++++++ include/linux/hugetlb.h | 2 ++ include/linux/hugetlb_cgroup.h | 1 + mm/hugetlb.c | 21 +++++++++++++++++++++ 4 files changed, 36 insertions(+), 0 deletions(-) diff --git a/fs/hugetlbfs/hugetlb_cgroup.c b/fs/hugetlbfs/hugetlb_cgroup.c index f6521ee..f2368ed 100644 --- a/fs/hugetlbfs/hugetlb_cgroup.c +++ b/fs/hugetlbfs/hugetlb_cgroup.c @@ -99,6 +99,18 @@ int hugetlb_cgroup_write(struct cgroup *cgroup, struct cftype *cft, return ret; } +int hugetlb_cgroup_reset(struct cgroup *cgroup, unsigned int event) +{ + int name, idx; + struct hugetlb_cgroup *h_cgroup = cgroup_to_hugetlbcgroup(cgroup); + + idx = MEMFILE_TYPE(event); + name = MEMFILE_ATTR(event); + + res_counter_reset_max(&h_cgroup->memhuge[idx]); + return 0; +} + static int hugetlbcgroup_can_attach(struct cgroup_subsys *ss, struct cgroup *new_cgrp, struct cgroup_taskset *set) diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 2b6b231..4392b6a 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -228,6 +228,8 @@ struct hstate { unsigned int surplus_huge_pages_node[MAX_NUMNODES]; /* cgroup control files */ struct cftype cgroup_limit_file; + struct cftype cgroup_usage_file; + struct cftype cgroup_max_usage_file; char name[HSTATE_NAME_LEN]; }; diff --git a/include/linux/hugetlb_cgroup.h b/include/linux/hugetlb_cgroup.h index 2330dd0..11cd6c4 100644 --- a/include/linux/hugetlb_cgroup.h +++ b/include/linux/hugetlb_cgroup.h @@ -18,4 +18,5 @@ extern u64 hugetlb_cgroup_read(struct cgroup *cgroup, struct cftype *cft); extern int hugetlb_cgroup_write(struct cgroup *cgroup, struct cftype *cft, const char *buffer); +extern int hugetlb_cgroup_reset(struct cgroup *cgroup, unsigned int event); #endif diff --git a/mm/hugetlb.c b/mm/hugetlb.c index f643f72..865b41f 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1814,6 +1814,13 @@ int register_hugetlb_cgroup_files(struct cgroup_subsys *ss, ret = cgroup_add_file(cgroup, ss, &h->cgroup_limit_file); if (ret) return ret; + ret = cgroup_add_file(cgroup, ss, &h->cgroup_usage_file); + if (ret) + return ret; + ret = cgroup_add_file(cgroup, ss, &h->cgroup_max_usage_file); + if (ret) + return ret; + } return ret; } @@ -1845,6 +1852,20 @@ static int hugetlb_cgroup_file_init(struct hstate *h, int idx) cft->read_u64 = hugetlb_cgroup_read; cft->write_string = hugetlb_cgroup_write; + /* Add the usage file */ + cft = &h->cgroup_usage_file; + snprintf(cft->name, MAX_CFTYPE_NAME, "%s.usage_in_bytes", buf); + cft->private = MEMFILE_PRIVATE(idx, RES_USAGE); + cft->read_u64 = hugetlb_cgroup_read; + + /* Add the MAX usage file */ + cft = &h->cgroup_max_usage_file; + snprintf(cft->name, MAX_CFTYPE_NAME, + "%s.max_usage_in_bytes", buf); + cft->private = MEMFILE_PRIVATE(idx, RES_MAX_USAGE); + cft->trigger = hugetlb_cgroup_reset; + cft->read_u64 = hugetlb_cgroup_read; + return 0; } #else -- 1.7.9 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org