The patch titled
Subject: memcg: use OFP_PEAK_UNSET instead of -1
has been added to the -mm mm-unstable branch. Its filename is
memcg-use-ofp_peak_unset-instead-of-1.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/memcg-use-ofp_peak_unset-instead-of-1.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Chen Ridong <chenridong@xxxxxxxxxx>
Subject: memcg: use OFP_PEAK_UNSET instead of -1
Date: Fri, 24 Jan 2025 07:35:11 +0000
Patch series "Some cleanup for memcg", v4.
This patch (of 4):
The 'OFP_PEAK_UNSET' has been defined, use it instead of '-1'.
Link: https://lkml.kernel.org/r/20250124073514.2375622-1-chenridong@xxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/20250124073514.2375622-2-chenridong@xxxxxxxxxxxxxxx
Signed-off-by: Chen Ridong <chenridong@xxxxxxxxxx>
Reviewed-by: Michal Koutný <mkoutny@xxxxxxxx>
Acked-by: David Finkel <davidf@xxxxxxxxx>
Acked-by: Shakeel Butt <shakeel.butt@xxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Acked-by: Roman Gushchin <roman.gushchin@xxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Muchun Song <muchun.song@xxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Wang Weiyang <wangweiyang2@xxxxxxxxxx>
Cc: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/memcontrol.c~memcg-use-ofp_peak_unset-instead-of-1
+++ a/mm/memcontrol.c
@@ -4004,7 +4004,7 @@ static ssize_t peak_write(struct kernfs_
WRITE_ONCE(peer_ctx->value, usage);
/* initial write, register watcher */
- if (ofp->value == -1)
+ if (ofp->value == OFP_PEAK_UNSET)
list_add(&ofp->list, watchers);
WRITE_ONCE(ofp->value, usage);
_
Patches currently in -mm which might be from chenridong@xxxxxxxxxx are
memcg-use-ofp_peak_unset-instead-of-1.patch
memcg-call-the-free-function-when-allocation-of-pn-fails.patch
memcg-factor-out-the-replace_stock_objcg-function.patch
memcg-add-config_memcg_v1-for-local-functions.patch
