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Subject[-mm][PATCH 2/4] Enhance cgroup mm_owner_changed callback to add task information


This patch adds an additional field to the mm_owner callbacks. This field
is required to get to the mm that changed.

Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
---

include/linux/cgroup.h | 3 ++-
kernel/cgroup.c | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)

diff -puN kernel/cgroup.c~cgroup-add-task-to-mm--owner-callbacks kernel/cgroup.c
--- linux-2.6.25/kernel/cgroup.c~cgroup-add-task-to-mm--owner-callbacks 2008-05-04 02:53:05.000000000 +0530
+++ linux-2.6.25-balbir/kernel/cgroup.c 2008-05-04 02:53:05.000000000 +0530
@@ -2772,7 +2772,7 @@ void cgroup_mm_owner_callbacks(struct ta
if (oldcgrp == newcgrp)
continue;
if (ss->mm_owner_changed)
- ss->mm_owner_changed(ss, oldcgrp, newcgrp);
+ ss->mm_owner_changed(ss, oldcgrp, newcgrp, new);
}
}
}
diff -puN include/linux/cgroup.h~cgroup-add-task-to-mm--owner-callbacks include/linux/cgroup.h
--- linux-2.6.25/include/linux/cgroup.h~cgroup-add-task-to-mm--owner-callbacks 2008-05-04 02:53:05.000000000 +0530
+++ linux-2.6.25-balbir/include/linux/cgroup.h 2008-05-04 02:53:05.000000000 +0530
@@ -310,7 +310,8 @@ struct cgroup_subsys {
*/
void (*mm_owner_changed)(struct cgroup_subsys *ss,
struct cgroup *old,
- struct cgroup *new);
+ struct cgroup *new,
+ struct task_struct *p);
int subsys_id;
int active;
int disabled;
_
--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL


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