Re: [PATCH 04/23] hugetlb_cgroup: pass around @hugetlb_cgroup instead of @cgroup
On Thu 01-08-13 17:49:42, Tejun Heo wrote:
> cgroup controller API will be converted to primarily use struct
> cgroup_subsys_state instead of struct cgroup. In preparation, make
> hugetlb_cgroup functions pass around struct hugetlb_cgroup instead of
> struct cgroup.
>
> This patch shouldn't cause any behavior differences.
>
> Signed-off-by: Tejun Heo
> Cc: Aneesh Kumar K.V
> Cc: KAMEZAWA Hiroyuki
> Cc: Michal Hocko
> Cc: Johannes Weiner
Reviewed-by: Michal Hocko
> ---
> mm/hugetlb_cgroup.c | 22 --
> 1 file changed, 12 insertions(+), 10 deletions(-)
>
> diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
> index 50f213f..d2f9fc0 100644
> --- a/mm/hugetlb_cgroup.c
> +++ b/mm/hugetlb_cgroup.c
> @@ -56,17 +56,19 @@ static inline bool hugetlb_cgroup_is_root(struct
> hugetlb_cgroup *h_cg)
> return (h_cg == root_h_cgroup);
> }
>
> -static inline struct hugetlb_cgroup *parent_hugetlb_cgroup(struct cgroup *cg)
> +static inline struct hugetlb_cgroup *
> +parent_hugetlb_cgroup(struct hugetlb_cgroup *h_cg)
> {
> - if (!cg->parent)
> + struct cgroup *parent = h_cg->css.cgroup->parent;
> +
> + if (!parent)
> return NULL;
> - return hugetlb_cgroup_from_cgroup(cg->parent);
> + return hugetlb_cgroup_from_cgroup(parent);
> }
>
> -static inline bool hugetlb_cgroup_have_usage(struct cgroup *cg)
> +static inline bool hugetlb_cgroup_have_usage(struct hugetlb_cgroup *h_cg)
> {
> int idx;
> - struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cg);
>
> for (idx = 0; idx < hugetlb_max_hstate; idx++) {
> if ((res_counter_read_u64(_cg->hugepage[idx], RES_USAGE)) > 0)
> @@ -115,15 +117,14 @@ static void hugetlb_cgroup_css_free(struct cgroup
> *cgroup)
> * page reference and test for page active here. This function
> * cannot fail.
> */
> -static void hugetlb_cgroup_move_parent(int idx, struct cgroup *cgroup,
> +static void hugetlb_cgroup_move_parent(int idx, struct hugetlb_cgroup *h_cg,
> struct page *page)
> {
> int csize;
> struct res_counter *counter;
> struct res_counter *fail_res;
> struct hugetlb_cgroup *page_hcg;
> - struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cgroup);
> - struct hugetlb_cgroup *parent = parent_hugetlb_cgroup(cgroup);
> + struct hugetlb_cgroup *parent = parent_hugetlb_cgroup(h_cg);
>
> page_hcg = hugetlb_cgroup_from_page(page);
> /*
> @@ -155,6 +156,7 @@ out:
> */
> static void hugetlb_cgroup_css_offline(struct cgroup *cgroup)
> {
> + struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cgroup);
> struct hstate *h;
> struct page *page;
> int idx = 0;
> @@ -163,13 +165,13 @@ static void hugetlb_cgroup_css_offline(struct cgroup
> *cgroup)
> for_each_hstate(h) {
> spin_lock(_lock);
> list_for_each_entry(page, >hugepage_activelist, lru)
> - hugetlb_cgroup_move_parent(idx, cgroup, page);
> + hugetlb_cgroup_move_parent(idx, h_cg, page);
>
> spin_unlock(_lock);
> idx++;
> }
> cond_resched();
> - } while (hugetlb_cgroup_have_usage(cgroup));
> + } while (hugetlb_cgroup_have_usage(h_cg));
> }
>
> int hugetlb_cgroup_charge_cgroup(int idx, unsigned long nr_pages,
> --
> 1.8.3.1
>
--
Michal Hocko
SUSE Labs
--
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Re: [PATCH 04/23] hugetlb_cgroup: pass around @hugetlb_cgroup instead of @cgroup
On Thu 01-08-13 17:49:42, Tejun Heo wrote:
cgroup controller API will be converted to primarily use struct
cgroup_subsys_state instead of struct cgroup. In preparation, make
hugetlb_cgroup functions pass around struct hugetlb_cgroup instead of
struct cgroup.
This patch shouldn't cause any behavior differences.
Signed-off-by: Tejun Heo t...@kernel.org
Cc: Aneesh Kumar K.V aneesh.ku...@linux.vnet.ibm.com
Cc: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Cc: Michal Hocko mho...@suse.cz
Cc: Johannes Weiner han...@cmpxchg.org
Reviewed-by: Michal Hocko mho...@suse.cz
---
mm/hugetlb_cgroup.c | 22 --
1 file changed, 12 insertions(+), 10 deletions(-)
diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index 50f213f..d2f9fc0 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -56,17 +56,19 @@ static inline bool hugetlb_cgroup_is_root(struct
hugetlb_cgroup *h_cg)
return (h_cg == root_h_cgroup);
}
-static inline struct hugetlb_cgroup *parent_hugetlb_cgroup(struct cgroup *cg)
+static inline struct hugetlb_cgroup *
+parent_hugetlb_cgroup(struct hugetlb_cgroup *h_cg)
{
- if (!cg-parent)
+ struct cgroup *parent = h_cg-css.cgroup-parent;
+
+ if (!parent)
return NULL;
- return hugetlb_cgroup_from_cgroup(cg-parent);
+ return hugetlb_cgroup_from_cgroup(parent);
}
-static inline bool hugetlb_cgroup_have_usage(struct cgroup *cg)
+static inline bool hugetlb_cgroup_have_usage(struct hugetlb_cgroup *h_cg)
{
int idx;
- struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cg);
for (idx = 0; idx hugetlb_max_hstate; idx++) {
if ((res_counter_read_u64(h_cg-hugepage[idx], RES_USAGE)) 0)
@@ -115,15 +117,14 @@ static void hugetlb_cgroup_css_free(struct cgroup
*cgroup)
* page reference and test for page active here. This function
* cannot fail.
*/
-static void hugetlb_cgroup_move_parent(int idx, struct cgroup *cgroup,
+static void hugetlb_cgroup_move_parent(int idx, struct hugetlb_cgroup *h_cg,
struct page *page)
{
int csize;
struct res_counter *counter;
struct res_counter *fail_res;
struct hugetlb_cgroup *page_hcg;
- struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cgroup);
- struct hugetlb_cgroup *parent = parent_hugetlb_cgroup(cgroup);
+ struct hugetlb_cgroup *parent = parent_hugetlb_cgroup(h_cg);
page_hcg = hugetlb_cgroup_from_page(page);
/*
@@ -155,6 +156,7 @@ out:
*/
static void hugetlb_cgroup_css_offline(struct cgroup *cgroup)
{
+ struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cgroup);
struct hstate *h;
struct page *page;
int idx = 0;
@@ -163,13 +165,13 @@ static void hugetlb_cgroup_css_offline(struct cgroup
*cgroup)
for_each_hstate(h) {
spin_lock(hugetlb_lock);
list_for_each_entry(page, h-hugepage_activelist, lru)
- hugetlb_cgroup_move_parent(idx, cgroup, page);
+ hugetlb_cgroup_move_parent(idx, h_cg, page);
spin_unlock(hugetlb_lock);
idx++;
}
cond_resched();
- } while (hugetlb_cgroup_have_usage(cgroup));
+ } while (hugetlb_cgroup_have_usage(h_cg));
}
int hugetlb_cgroup_charge_cgroup(int idx, unsigned long nr_pages,
--
1.8.3.1
--
Michal Hocko
SUSE Labs
--
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the body of a message to majord...@vger.kernel.org
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Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 04/23] hugetlb_cgroup: pass around @hugetlb_cgroup instead of @cgroup
Tejun Heo writes:
> cgroup controller API will be converted to primarily use struct
> cgroup_subsys_state instead of struct cgroup. In preparation, make
> hugetlb_cgroup functions pass around struct hugetlb_cgroup instead of
> struct cgroup.
>
> This patch shouldn't cause any behavior differences.
>
> Signed-off-by: Tejun Heo
> Cc: Aneesh Kumar K.V
> Cc: KAMEZAWA Hiroyuki
> Cc: Michal Hocko
> Cc: Johannes Weiner
Reviewed-by: Aneesh Kumar K.V
> ---
> mm/hugetlb_cgroup.c | 22 --
> 1 file changed, 12 insertions(+), 10 deletions(-)
>
> diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
> index 50f213f..d2f9fc0 100644
> --- a/mm/hugetlb_cgroup.c
> +++ b/mm/hugetlb_cgroup.c
> @@ -56,17 +56,19 @@ static inline bool hugetlb_cgroup_is_root(struct
> hugetlb_cgroup *h_cg)
> return (h_cg == root_h_cgroup);
> }
>
> -static inline struct hugetlb_cgroup *parent_hugetlb_cgroup(struct cgroup *cg)
> +static inline struct hugetlb_cgroup *
> +parent_hugetlb_cgroup(struct hugetlb_cgroup *h_cg)
> {
> - if (!cg->parent)
> + struct cgroup *parent = h_cg->css.cgroup->parent;
> +
> + if (!parent)
> return NULL;
> - return hugetlb_cgroup_from_cgroup(cg->parent);
> + return hugetlb_cgroup_from_cgroup(parent);
> }
>
> -static inline bool hugetlb_cgroup_have_usage(struct cgroup *cg)
> +static inline bool hugetlb_cgroup_have_usage(struct hugetlb_cgroup *h_cg)
> {
> int idx;
> - struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cg);
>
> for (idx = 0; idx < hugetlb_max_hstate; idx++) {
> if ((res_counter_read_u64(_cg->hugepage[idx], RES_USAGE)) > 0)
> @@ -115,15 +117,14 @@ static void hugetlb_cgroup_css_free(struct cgroup
> *cgroup)
> * page reference and test for page active here. This function
> * cannot fail.
> */
> -static void hugetlb_cgroup_move_parent(int idx, struct cgroup *cgroup,
> +static void hugetlb_cgroup_move_parent(int idx, struct hugetlb_cgroup *h_cg,
> struct page *page)
> {
> int csize;
> struct res_counter *counter;
> struct res_counter *fail_res;
> struct hugetlb_cgroup *page_hcg;
> - struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cgroup);
> - struct hugetlb_cgroup *parent = parent_hugetlb_cgroup(cgroup);
> + struct hugetlb_cgroup *parent = parent_hugetlb_cgroup(h_cg);
>
> page_hcg = hugetlb_cgroup_from_page(page);
> /*
> @@ -155,6 +156,7 @@ out:
> */
> static void hugetlb_cgroup_css_offline(struct cgroup *cgroup)
> {
> + struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cgroup);
> struct hstate *h;
> struct page *page;
> int idx = 0;
> @@ -163,13 +165,13 @@ static void hugetlb_cgroup_css_offline(struct cgroup
> *cgroup)
> for_each_hstate(h) {
> spin_lock(_lock);
> list_for_each_entry(page, >hugepage_activelist, lru)
> - hugetlb_cgroup_move_parent(idx, cgroup, page);
> + hugetlb_cgroup_move_parent(idx, h_cg, page);
>
> spin_unlock(_lock);
> idx++;
> }
> cond_resched();
> - } while (hugetlb_cgroup_have_usage(cgroup));
> + } while (hugetlb_cgroup_have_usage(h_cg));
> }
>
> int hugetlb_cgroup_charge_cgroup(int idx, unsigned long nr_pages,
> --
> 1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
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Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 04/23] hugetlb_cgroup: pass around @hugetlb_cgroup instead of @cgroup
Tejun Heo t...@kernel.org writes:
cgroup controller API will be converted to primarily use struct
cgroup_subsys_state instead of struct cgroup. In preparation, make
hugetlb_cgroup functions pass around struct hugetlb_cgroup instead of
struct cgroup.
This patch shouldn't cause any behavior differences.
Signed-off-by: Tejun Heo t...@kernel.org
Cc: Aneesh Kumar K.V aneesh.ku...@linux.vnet.ibm.com
Cc: KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com
Cc: Michal Hocko mho...@suse.cz
Cc: Johannes Weiner han...@cmpxchg.org
Reviewed-by: Aneesh Kumar K.V aneesh.ku...@linux.vnet.ibm.com
---
mm/hugetlb_cgroup.c | 22 --
1 file changed, 12 insertions(+), 10 deletions(-)
diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index 50f213f..d2f9fc0 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -56,17 +56,19 @@ static inline bool hugetlb_cgroup_is_root(struct
hugetlb_cgroup *h_cg)
return (h_cg == root_h_cgroup);
}
-static inline struct hugetlb_cgroup *parent_hugetlb_cgroup(struct cgroup *cg)
+static inline struct hugetlb_cgroup *
+parent_hugetlb_cgroup(struct hugetlb_cgroup *h_cg)
{
- if (!cg-parent)
+ struct cgroup *parent = h_cg-css.cgroup-parent;
+
+ if (!parent)
return NULL;
- return hugetlb_cgroup_from_cgroup(cg-parent);
+ return hugetlb_cgroup_from_cgroup(parent);
}
-static inline bool hugetlb_cgroup_have_usage(struct cgroup *cg)
+static inline bool hugetlb_cgroup_have_usage(struct hugetlb_cgroup *h_cg)
{
int idx;
- struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cg);
for (idx = 0; idx hugetlb_max_hstate; idx++) {
if ((res_counter_read_u64(h_cg-hugepage[idx], RES_USAGE)) 0)
@@ -115,15 +117,14 @@ static void hugetlb_cgroup_css_free(struct cgroup
*cgroup)
* page reference and test for page active here. This function
* cannot fail.
*/
-static void hugetlb_cgroup_move_parent(int idx, struct cgroup *cgroup,
+static void hugetlb_cgroup_move_parent(int idx, struct hugetlb_cgroup *h_cg,
struct page *page)
{
int csize;
struct res_counter *counter;
struct res_counter *fail_res;
struct hugetlb_cgroup *page_hcg;
- struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cgroup);
- struct hugetlb_cgroup *parent = parent_hugetlb_cgroup(cgroup);
+ struct hugetlb_cgroup *parent = parent_hugetlb_cgroup(h_cg);
page_hcg = hugetlb_cgroup_from_page(page);
/*
@@ -155,6 +156,7 @@ out:
*/
static void hugetlb_cgroup_css_offline(struct cgroup *cgroup)
{
+ struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_cgroup(cgroup);
struct hstate *h;
struct page *page;
int idx = 0;
@@ -163,13 +165,13 @@ static void hugetlb_cgroup_css_offline(struct cgroup
*cgroup)
for_each_hstate(h) {
spin_lock(hugetlb_lock);
list_for_each_entry(page, h-hugepage_activelist, lru)
- hugetlb_cgroup_move_parent(idx, cgroup, page);
+ hugetlb_cgroup_move_parent(idx, h_cg, page);
spin_unlock(hugetlb_lock);
idx++;
}
cond_resched();
- } while (hugetlb_cgroup_have_usage(cgroup));
+ } while (hugetlb_cgroup_have_usage(h_cg));
}
int hugetlb_cgroup_charge_cgroup(int idx, unsigned long nr_pages,
--
1.8.3.1
--
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the body of a message to majord...@vger.kernel.org
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Please read the FAQ at http://www.tux.org/lkml/
