From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-187.mta1.migadu.com (out-187.mta1.migadu.com [95.215.58.187]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 80001292918 for ; Thu, 25 Dec 2025 23:21:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.187 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766704909; cv=none; b=sz3gAzq6TgU2KUT3JD3/tvBt9LLZfay8fpdsctYoky6ylMa5WLt4Mg7nrN7+xET3IqyV0nEhtmloEZpwppIUoLnDZxzkPORSJm6gOSMF6HAGn2GRRi4K5Pb3bKvlWIE5P6ZenayxJvSq2bOM1V+J4wk6pRnkH25JA0xH1sfnJVE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766704909; c=relaxed/simple; bh=6sGApEq2wAUJdIA4naJGX1M4w9kayzWqSsFuKwnnP5A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fnD6ghacIZIpZ8aSBPPN+1RxebVg0tdpvlPYNTMaCUvmYM940gT5jYSykMT+oG3JeTYeXIg+DVhA4bdbooKvwjjQwjvxXU75Tx5PBzwBbSOODROiW8TTvMVYDLnSi0ubwMnCin6tqUcgxlTvslO0hQddL7otKvz3109ygFW9lRY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=V1Ud422M; arc=none smtp.client-ip=95.215.58.187 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="V1Ud422M" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1766704895; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=k0ch+6yI2tUKJ64buXx3qfBV9aEKwt068abp9sUTgOs=; b=V1Ud422Myo3TSvF6ot7WDW/igs4tzP3Spgllu6/P7t+yRgxB7sI+zS3mDjX1I21L2u889u tqjQR3Orgezg0Y9YJj/O86Yg0JdwIfK39WId2zS0EWkLKrgb9HIm3GEFOB+HcLG+3E5+Sb Gr+pB7+MPupund5xTwfR5NYHdHmprNI= From: Shakeel Butt To: Andrew Morton Cc: Johannes Weiner , Michal Hocko , Roman Gushchin , Muchun Song , SeongJae Park , Meta kernel team , linux-mm@kvack.org, cgroups@vger.kernel.org, damon@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 2/8] memcg: expose mem_cgroup_ino() and mem_cgroup_get_from_ino() unconditionally Date: Thu, 25 Dec 2025 15:21:10 -0800 Message-ID: <20251225232116.294540-3-shakeel.butt@linux.dev> In-Reply-To: <20251225232116.294540-1-shakeel.butt@linux.dev> References: <20251225232116.294540-1-shakeel.butt@linux.dev> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT Remove the CONFIG_SHRINKER_DEBUG guards around mem_cgroup_ino() and mem_cgroup_get_from_ino(). These APIs provide a way to get a memcg's cgroup inode number and to look up a memcg from an inode number respectively. Making these functions unconditionally available allows other in-kernel users to leverage them without requiring CONFIG_SHRINKER_DEBUG to be enabled. No functional change for existing users. Signed-off-by: Shakeel Butt --- include/linux/memcontrol.h | 4 ---- mm/memcontrol.c | 2 -- 2 files changed, 6 deletions(-) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 1c4224bcfb23..77f32be26ea8 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -836,14 +836,12 @@ static inline unsigned short mem_cgroup_id(struct mem_cgroup *memcg) } struct mem_cgroup *mem_cgroup_from_id(unsigned short id); -#ifdef CONFIG_SHRINKER_DEBUG static inline unsigned long mem_cgroup_ino(struct mem_cgroup *memcg) { return memcg ? cgroup_ino(memcg->css.cgroup) : 0; } struct mem_cgroup *mem_cgroup_get_from_ino(unsigned long ino); -#endif static inline struct mem_cgroup *mem_cgroup_from_seq(struct seq_file *m) { @@ -1308,7 +1306,6 @@ static inline struct mem_cgroup *mem_cgroup_from_private_id(unsigned short id) return NULL; } -#ifdef CONFIG_SHRINKER_DEBUG static inline unsigned long mem_cgroup_ino(struct mem_cgroup *memcg) { return 0; @@ -1318,7 +1315,6 @@ static inline struct mem_cgroup *mem_cgroup_get_from_ino(unsigned long ino) { return NULL; } -#endif static inline struct mem_cgroup *mem_cgroup_from_seq(struct seq_file *m) { diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 25ad8433df2e..e85816960e38 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3620,7 +3620,6 @@ struct mem_cgroup *mem_cgroup_from_id(unsigned short id) return mem_cgroup_from_private_id(id); } -#ifdef CONFIG_SHRINKER_DEBUG struct mem_cgroup *mem_cgroup_get_from_ino(unsigned long ino) { struct cgroup *cgrp; @@ -3641,7 +3640,6 @@ struct mem_cgroup *mem_cgroup_get_from_ino(unsigned long ino) return memcg; } -#endif static void free_mem_cgroup_per_node_info(struct mem_cgroup_per_node *pn) { -- 2.47.3