On Mon 08-04-13 14:36:46, Tejun Heo wrote:
> On Mon, Apr 08, 2013 at 08:03:44PM +0200, Michal Hocko wrote:
> > __mem_cgroup_same_or_subtree relies on css_is_ancestor if hierarchy is
> > enabled for ages. This, however, is not correct because use_hierarchy
> > doesn't need to be true all the way up
On Mon 08-04-13 14:36:46, Tejun Heo wrote:
On Mon, Apr 08, 2013 at 08:03:44PM +0200, Michal Hocko wrote:
__mem_cgroup_same_or_subtree relies on css_is_ancestor if hierarchy is
enabled for ages. This, however, is not correct because use_hierarchy
doesn't need to be true all the way up the
On 2013/4/9 11:21, Kamezawa Hiroyuki wrote:
> (2013/04/08 17:20), Li Zefan wrote:
>> This will be used as a replacement for css_is_ancestor().
>>
>> Signed-off-by: Li Zefan
>
> Acked-by: KAMEZAWA Hiroyuki
>
> Hmmbut do we need "depth" ?
>
which was removed in Tejun's
"[PATCHSET] perf,
(2013/04/08 17:20), Li Zefan wrote:
> This will be used as a replacement for css_is_ancestor().
>
> Signed-off-by: Li Zefan
Acked-by: KAMEZAWA Hiroyuki
Hmmbut do we need "depth" ?
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On Mon, Apr 08, 2013 at 08:03:44PM +0200, Michal Hocko wrote:
> __mem_cgroup_same_or_subtree relies on css_is_ancestor if hierarchy is
> enabled for ages. This, however, is not correct because use_hierarchy
> doesn't need to be true all the way up the cgroup hierarchy. Consider
> the following
On Mon 08-04-13 16:47:50, Michal Hocko wrote:
> On Mon 08-04-13 16:20:11, Li Zefan wrote:
> [...]
> > @@ -5299,6 +5300,26 @@ struct cgroup_subsys_state
> > *cgroup_css_from_dir(struct file *f, int id)
> > return css ? css : ERR_PTR(-ENOENT);
> > }
> >
> > +/**
> > + * cgroup_is_ancestor -
On Mon 08-04-13 08:57:26, Tejun Heo wrote:
> Hello,
>
> On Mon, Apr 08, 2013 at 04:47:50PM +0200, Michal Hocko wrote:
> > On Mon 08-04-13 16:20:11, Li Zefan wrote:
> > [...]
> > > @@ -5299,6 +5300,26 @@ struct cgroup_subsys_state
> > > *cgroup_css_from_dir(struct file *f, int id)
> > > return
Hello,
On Mon, Apr 08, 2013 at 04:47:50PM +0200, Michal Hocko wrote:
> On Mon 08-04-13 16:20:11, Li Zefan wrote:
> [...]
> > @@ -5299,6 +5300,26 @@ struct cgroup_subsys_state
> > *cgroup_css_from_dir(struct file *f, int id)
> > return css ? css : ERR_PTR(-ENOENT);
> > }
> >
> > +/**
> > +
Hello, Li.
On Mon, Apr 08, 2013 at 04:20:11PM +0800, Li Zefan wrote:
> +/**
> + * cgroup_is_ancestor - test "root" cgroup is an ancestor of "child"
> + * @child: the cgroup to be tested.
> + * @root: the cgroup supposed to be an ancestor of the child.
Please explain locking in the comment. (I
On Mon 08-04-13 16:20:11, Li Zefan wrote:
[...]
> @@ -5299,6 +5300,26 @@ struct cgroup_subsys_state *cgroup_css_from_dir(struct
> file *f, int id)
> return css ? css : ERR_PTR(-ENOENT);
> }
>
> +/**
> + * cgroup_is_ancestor - test "root" cgroup is an ancestor of "child"
> + * @child: the
This will be used as a replacement for css_is_ancestor().
Signed-off-by: Li Zefan
---
include/linux/cgroup.h | 3 +++
kernel/cgroup.c| 21 +
2 files changed, 24 insertions(+)
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 2eaedc1..96072e4 100644
This will be used as a replacement for css_is_ancestor().
Signed-off-by: Li Zefan lize...@huawei.com
---
include/linux/cgroup.h | 3 +++
kernel/cgroup.c| 21 +
2 files changed, 24 insertions(+)
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index
On Mon 08-04-13 16:20:11, Li Zefan wrote:
[...]
@@ -5299,6 +5300,26 @@ struct cgroup_subsys_state *cgroup_css_from_dir(struct
file *f, int id)
return css ? css : ERR_PTR(-ENOENT);
}
+/**
+ * cgroup_is_ancestor - test root cgroup is an ancestor of child
+ * @child: the cgroup to
Hello, Li.
On Mon, Apr 08, 2013 at 04:20:11PM +0800, Li Zefan wrote:
+/**
+ * cgroup_is_ancestor - test root cgroup is an ancestor of child
+ * @child: the cgroup to be tested.
+ * @root: the cgroup supposed to be an ancestor of the child.
Please explain locking in the comment. (I know it
Hello,
On Mon, Apr 08, 2013 at 04:47:50PM +0200, Michal Hocko wrote:
On Mon 08-04-13 16:20:11, Li Zefan wrote:
[...]
@@ -5299,6 +5300,26 @@ struct cgroup_subsys_state
*cgroup_css_from_dir(struct file *f, int id)
return css ? css : ERR_PTR(-ENOENT);
}
+/**
+ *
On Mon 08-04-13 08:57:26, Tejun Heo wrote:
Hello,
On Mon, Apr 08, 2013 at 04:47:50PM +0200, Michal Hocko wrote:
On Mon 08-04-13 16:20:11, Li Zefan wrote:
[...]
@@ -5299,6 +5300,26 @@ struct cgroup_subsys_state
*cgroup_css_from_dir(struct file *f, int id)
return css ? css :
On Mon 08-04-13 16:47:50, Michal Hocko wrote:
On Mon 08-04-13 16:20:11, Li Zefan wrote:
[...]
@@ -5299,6 +5300,26 @@ struct cgroup_subsys_state
*cgroup_css_from_dir(struct file *f, int id)
return css ? css : ERR_PTR(-ENOENT);
}
+/**
+ * cgroup_is_ancestor - test root cgroup
On Mon, Apr 08, 2013 at 08:03:44PM +0200, Michal Hocko wrote:
__mem_cgroup_same_or_subtree relies on css_is_ancestor if hierarchy is
enabled for ages. This, however, is not correct because use_hierarchy
doesn't need to be true all the way up the cgroup hierarchy. Consider
the following
(2013/04/08 17:20), Li Zefan wrote:
This will be used as a replacement for css_is_ancestor().
Signed-off-by: Li Zefan lize...@huawei.com
Acked-by: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Hmmbut do we need depth ?
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To unsubscribe from this list: send the line unsubscribe
On 2013/4/9 11:21, Kamezawa Hiroyuki wrote:
(2013/04/08 17:20), Li Zefan wrote:
This will be used as a replacement for css_is_ancestor().
Signed-off-by: Li Zefan lize...@huawei.com
Acked-by: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Hmmbut do we need depth ?
which was
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