* [to-be-updated] mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch removed from -mm tree
@ 2026-06-28 2:31 Andrew Morton
0 siblings, 0 replies; 4+ messages in thread
From: Andrew Morton @ 2026-06-28 2:31 UTC (permalink / raw)
To: mm-commits, ye.liu, akpm
The quilt patch titled
Subject: mm/page_owner: hoist CONFIG_MEMCG to function level for print_page_owner_memcg()
has been removed from the -mm tree. Its filename was
mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch
This patch was dropped because an updated version will be issued
------------------------------------------------------
From: Ye Liu <ye.liu@linux.dev>
Subject: mm/page_owner: hoist CONFIG_MEMCG to function level for print_page_owner_memcg()
Date: Tue, 23 Jun 2026 14:52:28 +0800
The print_page_owner_memcg() function has CONFIG_MEMCG guarding its entire
body via #ifdef inside the function, which leaves a no-op { return ret; }
when the config is disabled. Hoist the #ifdef to the top level so the
real implementation and the empty stub are two clearly separated
definitions.
No functional change.
Link: https://lore.kernel.org/20260623065234.31866-4-ye.liu@linux.dev
Signed-off-by: Ye Liu <ye.liu@linux.dev>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/page_owner.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/mm/page_owner.c~mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg
+++ a/mm/page_owner.c
@@ -529,13 +529,13 @@ ext_put_continue:
seq_putc(m, '\n');
}
+#ifdef CONFIG_MEMCG
/*
* Looking for memcg information and print it out
*/
static inline int print_page_owner_memcg(char *kbuf, size_t count, int ret,
struct page *page)
{
-#ifdef CONFIG_MEMCG
unsigned long memcg_data;
struct mem_cgroup *memcg;
bool online;
@@ -563,10 +563,16 @@ static inline int print_page_owner_memcg
name);
out_unlock:
rcu_read_unlock();
-#endif /* CONFIG_MEMCG */
return ret;
}
+#else
+static inline int print_page_owner_memcg(char *kbuf, size_t count, int ret,
+ struct page *page)
+{
+ return ret;
+}
+#endif
static ssize_t
print_page_owner(char __user *buf, size_t count, unsigned long pfn,
_
Patches currently in -mm which might be from ye.liu@linux.dev are
a.patch
mm-page_owner-add-missing-newline-to-count_threshold-format-string.patch
mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch
mm-page_owner-clamp-skip_buddy_pages-pfn-advance-at-max_order_nr_pages-boundary.patch
mm-page_owner-use-memcg_data-snapshot-instead-of-pagememcgkmem-to-avoid-toctou-vm_bug_on.patch
^ permalink raw reply [flat|nested] 4+ messages in thread
* [to-be-updated] mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch removed from -mm tree
@ 2026-06-30 2:26 Andrew Morton
0 siblings, 0 replies; 4+ messages in thread
From: Andrew Morton @ 2026-06-30 2:26 UTC (permalink / raw)
To: mm-commits, ye.liu, akpm
The quilt patch titled
Subject: mm/page_owner: hoist CONFIG_MEMCG to function level for print_page_owner_memcg()
has been removed from the -mm tree. Its filename was
mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch
This patch was dropped because an updated version will be issued
------------------------------------------------------
From: Ye Liu <ye.liu@linux.dev>
Subject: mm/page_owner: hoist CONFIG_MEMCG to function level for print_page_owner_memcg()
Date: Fri, 26 Jun 2026 10:45:42 +0800
The print_page_owner_memcg() function has CONFIG_MEMCG guarding its entire
body via #ifdef inside the function, which leaves a no-op { return ret; }
when the config is disabled. Hoist the #ifdef to the top level so the
real implementation and the empty stub are two clearly separated
definitions.
No functional change.
Link: https://lore.kernel.org/20260626024550.25677-4-ye.liu@linux.dev
Signed-off-by: Ye Liu <ye.liu@linux.dev>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/page_owner.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/mm/page_owner.c~mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg
+++ a/mm/page_owner.c
@@ -529,13 +529,13 @@ ext_put_continue:
seq_putc(m, '\n');
}
+#ifdef CONFIG_MEMCG
/*
* Looking for memcg information and print it out
*/
static inline int print_page_owner_memcg(char *kbuf, size_t count, int ret,
struct page *page)
{
-#ifdef CONFIG_MEMCG
unsigned long memcg_data;
struct mem_cgroup *memcg;
bool online;
@@ -563,10 +563,16 @@ static inline int print_page_owner_memcg
name);
out_unlock:
rcu_read_unlock();
-#endif /* CONFIG_MEMCG */
return ret;
}
+#else
+static inline int print_page_owner_memcg(char *kbuf, size_t count, int ret,
+ struct page *page)
+{
+ return ret;
+}
+#endif
static ssize_t
print_page_owner(char __user *buf, size_t count, unsigned long pfn,
_
Patches currently in -mm which might be from ye.liu@linux.dev are
mm-page_owner-add-missing-newline-to-count_threshold-format-string.patch
mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch
mm-page_owner-clamp-skip_buddy_pages-pfn-advance-at-max_order_nr_pages-boundary.patch
mm-page_owner-use-memcg_data-snapshot-instead-of-pagememcgkmem-to-avoid-toctou-vm_bug_on.patch
^ permalink raw reply [flat|nested] 4+ messages in thread
* [to-be-updated] mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch removed from -mm tree
@ 2026-07-01 3:36 Andrew Morton
0 siblings, 0 replies; 4+ messages in thread
From: Andrew Morton @ 2026-07-01 3:36 UTC (permalink / raw)
To: mm-commits, ye.liu, akpm
The quilt patch titled
Subject: mm/page_owner: hoist CONFIG_MEMCG to function level for print_page_owner_memcg()
has been removed from the -mm tree. Its filename was
mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch
This patch was dropped because an updated version will be issued
------------------------------------------------------
From: Ye Liu <ye.liu@linux.dev>
Subject: mm/page_owner: hoist CONFIG_MEMCG to function level for print_page_owner_memcg()
Date: Tue, 30 Jun 2026 09:53:21 +0800
print_page_owner_memcg() has CONFIG_MEMCG guarding its entire body via
#ifdef inside the function, which leaves a no-op { return ret; } when the
config is disabled. Hoist the #ifdef to the top level so the real
implementation and the empty stub are two clearly separated definitions.
No functional change.
Link: https://lore.kernel.org/20260630015331.147174-5-ye.liu@linux.dev
Signed-off-by: Ye Liu <ye.liu@linux.dev>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/page_owner.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/mm/page_owner.c~mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg
+++ a/mm/page_owner.c
@@ -522,13 +522,13 @@ ext_put_continue:
seq_putc(m, '\n');
}
+#ifdef CONFIG_MEMCG
/*
* Looking for memcg information and print it out
*/
static inline int print_page_owner_memcg(char *kbuf, size_t count, int ret,
struct page *page)
{
-#ifdef CONFIG_MEMCG
unsigned long memcg_data;
struct mem_cgroup *memcg;
bool online;
@@ -556,10 +556,16 @@ static inline int print_page_owner_memcg
name);
out_unlock:
rcu_read_unlock();
-#endif /* CONFIG_MEMCG */
return ret;
}
+#else
+static inline int print_page_owner_memcg(char *kbuf, size_t count, int ret,
+ struct page *page)
+{
+ return ret;
+}
+#endif
static ssize_t
print_page_owner(char __user *buf, size_t count, unsigned long pfn,
_
Patches currently in -mm which might be from ye.liu@linux.dev are
a.patch
mm-page_owner-add-missing-newline-to-count_threshold-format-string.patch
mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch
mm-page_owner-clamp-skip_buddy_pages-pfn-advance-at-max_order_nr_pages-boundary.patch
mm-page_owner-use-memcg_data-snapshot-instead-of-pagememcgkmem-to-avoid-toctou-vm_bug_on.patch
^ permalink raw reply [flat|nested] 4+ messages in thread
* [to-be-updated] mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch removed from -mm tree
@ 2026-07-01 23:57 Andrew Morton
0 siblings, 0 replies; 4+ messages in thread
From: Andrew Morton @ 2026-07-01 23:57 UTC (permalink / raw)
To: mm-commits, ye.liu, akpm
The quilt patch titled
Subject: mm/page_owner: hoist CONFIG_MEMCG to function level for print_page_owner_memcg()
has been removed from the -mm tree. Its filename was
mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg.patch
This patch was dropped because an updated version will be issued
------------------------------------------------------
From: Ye Liu <ye.liu@linux.dev>
Subject: mm/page_owner: hoist CONFIG_MEMCG to function level for print_page_owner_memcg()
Date: Wed, 1 Jul 2026 09:22:30 +0800
The print_page_owner_memcg() function has CONFIG_MEMCG guarding its entire
body via #ifdef inside the function, which leaves a no-op { return ret; }
when the config is disabled. Hoist the #ifdef to the top level so the
real implementation and the empty stub are two clearly separated
definitions.
No functional change.
Link: https://lore.kernel.org/20260701012239.315262-5-ye.liu@linux.dev
Signed-off-by: Ye Liu <ye.liu@linux.dev>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/page_owner.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/mm/page_owner.c~mm-page_owner-hoist-config_memcg-to-function-level-for-print_page_owner_memcg
+++ a/mm/page_owner.c
@@ -522,13 +522,13 @@ ext_put_continue:
seq_putc(m, '\n');
}
+#ifdef CONFIG_MEMCG
/*
* Looking for memcg information and print it out
*/
static inline int print_page_owner_memcg(char *kbuf, size_t count, int ret,
struct page *page)
{
-#ifdef CONFIG_MEMCG
unsigned long memcg_data;
struct mem_cgroup *memcg;
bool online;
@@ -556,10 +556,16 @@ static inline int print_page_owner_memcg
name);
out_unlock:
rcu_read_unlock();
-#endif /* CONFIG_MEMCG */
return ret;
}
+#else
+static inline int print_page_owner_memcg(char *kbuf, size_t count, int ret,
+ struct page *page)
+{
+ return ret;
+}
+#endif
static ssize_t
print_page_owner(char __user *buf, size_t count, unsigned long pfn,
_
Patches currently in -mm which might be from ye.liu@linux.dev are
mm-page_owner-add-missing-newline-to-count_threshold-format-string.patch
mm-page_owner-move-free_ts_nsec-output-to-free-section-in-__dump_page_owner.patch
mm-page_owner-drop-redundant-page_owner-prefix-from-static-symbols.patch
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-07-01 23:57 UTC | newest]
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