lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sat,  7 Apr 2012 00:20:55 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	linux-mm@...ck.org, mgorman@...e.de,
	kamezawa.hiroyu@...fujitsu.com, dhillf@...il.com,
	aarcange@...hat.com, mhocko@...e.cz, akpm@...ux-foundation.org,
	hannes@...xchg.org
Cc:	linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: [PATCH -V5 09/14] memcg: track resource index in cftype private

From: "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>

This helps in using same memcg callbacks for non reclaim resource
control files.

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
---
 mm/memcontrol.c |   27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 0a1f776..3bb3b42 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -381,9 +381,14 @@ enum charge_type {
 #define _MEM			(0)
 #define _MEMSWAP		(1)
 #define _OOM_TYPE		(2)
-#define MEMFILE_PRIVATE(x, val)	(((x) << 16) | (val))
-#define MEMFILE_TYPE(val)	(((val) >> 16) & 0xffff)
-#define MEMFILE_ATTR(val)	((val) & 0xffff)
+#define _MEMHUGETLB		(3)
+
+/*  0 ... val ...16.... x...24...idx...32*/
+#define __MEMFILE_PRIVATE(idx, x, val)	(((idx) << 24) | ((x) << 16) | (val))
+#define MEMFILE_PRIVATE(x, val)		__MEMFILE_PRIVATE(0, x, val)
+#define MEMFILE_TYPE(val)		(((val) >> 16) & 0xff)
+#define MEMFILE_IDX(val)		(((val) >> 24) & 0xff)
+#define MEMFILE_ATTR(val)		((val) & 0xffff)
 /* Used for OOM nofiier */
 #define OOM_CONTROL		(0)
 
@@ -4003,7 +4008,7 @@ static ssize_t mem_cgroup_read(struct cgroup *cont, struct cftype *cft,
 	struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
 	char str[64];
 	u64 val;
-	int type, name, len;
+	int type, name, len, idx;
 
 	type = MEMFILE_TYPE(cft->private);
 	name = MEMFILE_ATTR(cft->private);
@@ -4024,6 +4029,10 @@ static ssize_t mem_cgroup_read(struct cgroup *cont, struct cftype *cft,
 		else
 			val = res_counter_read_u64(&memcg->memsw, name);
 		break;
+	case _MEMHUGETLB:
+		idx = MEMFILE_IDX(cft->private);
+		val = res_counter_read_u64(&memcg->hugepage[idx], name);
+		break;
 	default:
 		BUG();
 	}
@@ -4061,7 +4070,10 @@ static int mem_cgroup_write(struct cgroup *cont, struct cftype *cft,
 			break;
 		if (type == _MEM)
 			ret = mem_cgroup_resize_limit(memcg, val);
-		else
+		else if (type == _MEMHUGETLB) {
+			int idx = MEMFILE_IDX(cft->private);
+			ret = res_counter_set_limit(&memcg->hugepage[idx], val);
+		} else
 			ret = mem_cgroup_resize_memsw_limit(memcg, val);
 		break;
 	case RES_SOFT_LIMIT:
@@ -4127,7 +4139,10 @@ static int mem_cgroup_reset(struct cgroup *cont, unsigned int event)
 	case RES_MAX_USAGE:
 		if (type == _MEM)
 			res_counter_reset_max(&memcg->res);
-		else
+		else if (type == _MEMHUGETLB) {
+			int idx = MEMFILE_IDX(event);
+			res_counter_reset_max(&memcg->hugepage[idx]);
+		} else
 			res_counter_reset_max(&memcg->memsw);
 		break;
 	case RES_FAILCNT:
-- 
1.7.10.rc3.3.g19a6c

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists