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authorLi Zefan <lizf@cn.fujitsu.com>2009-04-03 01:57:53 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-03 04:04:57 +0200
commit7f81b1ae18416b457e4d5ff23f0bd598e8a42224 (patch)
tree8b484cec5b67d4cf00dfacd407b2648cd0d1b645
parentcpuset: avoid changing cpuset's mems when errno returned (diff)
downloadlinux-7f81b1ae18416b457e4d5ff23f0bd598e8a42224.tar.xz
linux-7f81b1ae18416b457e4d5ff23f0bd598e8a42224.zip
cpuset: remove struct cpuset_hotplug_scanner
Use cgroup_scanner.data, instead of introducing cpuset_hotplug_scanner. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Paul Menage <menage@google.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--kernel/cpuset.c23
1 files changed, 9 insertions, 14 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 3778a21a4662..0619f109d38d 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -128,10 +128,6 @@ static inline struct cpuset *task_cs(struct task_struct *task)
return container_of(task_subsys_state(task, cpuset_subsys_id),
struct cpuset, css);
}
-struct cpuset_hotplug_scanner {
- struct cgroup_scanner scan;
- struct cgroup *to;
-};
/* bits in struct cpuset flags field */
typedef enum {
@@ -1890,10 +1886,9 @@ int __init cpuset_init(void)
static void cpuset_do_move_task(struct task_struct *tsk,
struct cgroup_scanner *scan)
{
- struct cpuset_hotplug_scanner *chsp;
+ struct cgroup *new_cgroup = scan->data;
- chsp = container_of(scan, struct cpuset_hotplug_scanner, scan);
- cgroup_attach_task(chsp->to, tsk);
+ cgroup_attach_task(new_cgroup, tsk);
}
/**
@@ -1909,15 +1904,15 @@ static void cpuset_do_move_task(struct task_struct *tsk,
*/
static void move_member_tasks_to_cpuset(struct cpuset *from, struct cpuset *to)
{
- struct cpuset_hotplug_scanner scan;
+ struct cgroup_scanner scan;
- scan.scan.cg = from->css.cgroup;
- scan.scan.test_task = NULL; /* select all tasks in cgroup */
- scan.scan.process_task = cpuset_do_move_task;
- scan.scan.heap = NULL;
- scan.to = to->css.cgroup;
+ scan.cg = from->css.cgroup;
+ scan.test_task = NULL; /* select all tasks in cgroup */
+ scan.process_task = cpuset_do_move_task;
+ scan.heap = NULL;
+ scan.data = to->css.cgroup;
- if (cgroup_scan_tasks(&scan.scan))
+ if (cgroup_scan_tasks(&scan))
printk(KERN_ERR "move_member_tasks_to_cpuset: "
"cgroup_scan_tasks failed\n");
}