linux-kernel - [PATCH -v2 next 1/4] memcg: use OFP_PEAK

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Message-Id: <20250114122519.1404275-2-chenridong@huaweicloud.com>
Date: Tue, 14 Jan 2025 12:25:16 +0000
From: Chen Ridong <chenridong@...weicloud.com>
To: akpm@...ux-foundation.org,
	mhocko@...nel.org,
	hannes@...xchg.org,
	yosryahmed@...gle.com,
	roman.gushchin@...ux.dev,
	shakeel.butt@...ux.dev,
	muchun.song@...ux.dev,
	davidf@...eo.com,
	vbabka@...e.cz,
	mkoutny@...e.com
Cc: linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	cgroups@...r.kernel.org,
	chenridong@...wei.com,
	wangweiyang2@...wei.com
Subject: [PATCH -v2 next 1/4] memcg: use OFP_PEAK_UNSET instead of -1

From: Chen Ridong <chenridong@...wei.com>

The 'OFP_PEAK_UNSET' has been defined, use it instead of '-1'.

Signed-off-by: Chen Ridong <chenridong@...wei.com>
Reviewed-by: Michal Koutný <mkoutny@...e.com>
Acked-by: David Finkel <davidf@...eo.com>
Acked-by: Shakeel Butt <shakeel.butt@...ux.dev>
---
 mm/memcontrol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 46f8b372d212..05a32c860554 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4004,7 +4004,7 @@ static ssize_t peak_write(struct kernfs_open_file *of, char *buf, size_t nbytes,
 			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);
-- 
2.34.1