From patchwork Fri Sep 23 03:33:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Shixin X-Patchwork-Id: 12986088 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA2FDECAAD8 for ; Fri, 23 Sep 2022 03:00:29 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7774F8000D; Thu, 22 Sep 2022 23:00:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 700A58000E; Thu, 22 Sep 2022 23:00:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 493D48000D; Thu, 22 Sep 2022 23:00:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 152A580009 for ; Thu, 22 Sep 2022 23:00:17 -0400 (EDT) Received: from smtpin08.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id CBF968056C for ; Fri, 23 Sep 2022 03:00:16 +0000 (UTC) X-FDA: 79941846432.08.64A0FAB Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by imf02.hostedemail.com (Postfix) with ESMTP id EDB5B8000B for ; Fri, 23 Sep 2022 03:00:15 +0000 (UTC) Received: from dggpemm500020.china.huawei.com (unknown [172.30.72.57]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4MYcK610NPzHqPx; Fri, 23 Sep 2022 10:58:02 +0800 (CST) Received: from dggpemm100009.china.huawei.com (7.185.36.113) by dggpemm500020.china.huawei.com (7.185.36.49) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Fri, 23 Sep 2022 11:00:11 +0800 Received: from huawei.com (10.175.113.32) by dggpemm100009.china.huawei.com (7.185.36.113) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Fri, 23 Sep 2022 11:00:12 +0800 From: Liu Shixin To: Andrew Morton , David Hildenbrand , Waiman Long , Zefan Li , Christoph Lameter CC: , , Liu Shixin , Kefeng Wang Subject: [PATCH v4 8/8] memory: move hotplug memory notifier priority to same file for easy sorting Date: Fri, 23 Sep 2022 11:33:47 +0800 Message-ID: <20220923033347.3935160-9-liushixin2@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220923033347.3935160-1-liushixin2@huawei.com> References: <20220923033347.3935160-1-liushixin2@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.32] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpemm100009.china.huawei.com (7.185.36.113) X-CFilter-Loop: Reflected ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1663902016; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=O1xZQTlid/bQiMdEtunZc34uZhbWe5Kh8Ds+hcvFUP0=; b=w5NxGnbIQkN5rG/8fRvxZSwQ+EH2bTjnt3CdGMNFnWMMA5oAzZyB72iuJa8cozuEwvHKXu HyGwdsEN+mF9Feb6jpLaB6iGROgWgS8lr16PG9yKCdwNpBwVFql/YBUZWKeLy9u2xP5j5l KjLwZ2gYt1iqOCj7dMZlEsBNemLUv2E= ARC-Authentication-Results: i=1; imf02.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf02.hostedemail.com: domain of liushixin2@huawei.com designates 45.249.212.189 as permitted sender) smtp.mailfrom=liushixin2@huawei.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1663902016; a=rsa-sha256; cv=none; b=Ss4/S6udAlMhZfv2B1rp73acJUdeFZqspjHm35icfDQIgkw+TyUG4yCuN6SlI2LgSuVlCr LcI3Eh8a/pZ6qaMk8NWEPxFL0So16XmQuLR29LOpU3yZBCmwqZkr6o3ZirvUfiyAv//SLn Oiyw2egGPGf342vj9JnKOVZG8RI+qAI= X-Stat-Signature: rzpwwyjbtkp5qzne9ujuq4k8h7qk6rkn X-Rspamd-Queue-Id: EDB5B8000B X-Rspam-User: Authentication-Results: imf02.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf02.hostedemail.com: domain of liushixin2@huawei.com designates 45.249.212.189 as permitted sender) smtp.mailfrom=liushixin2@huawei.com X-Rspamd-Server: rspam03 X-HE-Tag: 1663902015-176894 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: The priority of hotplug memory callback is defined in different file. And there are some caller using number directly. Collect them together into include/linux/memory.h for easy reading. This allows us to sort their priorities more intuitively without additional comments. Signed-off-by: Liu Shixin --- drivers/acpi/numa/hmat.c | 2 +- fs/proc/kcore.c | 2 +- include/linux/memory-tiers.h | 1 - include/linux/memory.h | 9 +++++++-- kernel/cgroup/cpuset.c | 2 +- mm/kasan/shadow.c | 2 +- mm/ksm.c | 2 +- mm/memory-tiers.c | 2 +- mm/mm_init.c | 2 +- mm/mmap.c | 2 +- mm/page_ext.c | 2 +- 11 files changed, 16 insertions(+), 12 deletions(-) diff --git a/drivers/acpi/numa/hmat.c b/drivers/acpi/numa/hmat.c index 84dffb3dc30e..47c7fae8b6de 100644 --- a/drivers/acpi/numa/hmat.c +++ b/drivers/acpi/numa/hmat.c @@ -850,7 +850,7 @@ static __init int hmat_init(void) hmat_register_targets(); /* Keep the table and structures if the notifier may use them */ - if (!hotplug_memory_notifier(hmat_callback, 2)) + if (!hotplug_memory_notifier(hmat_callback, HMAT_CALLBACK_PRI)) return 0; out_put: hmat_free_structures(); diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index 7692a360972d..98f3289556e4 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -689,7 +689,7 @@ static int __init proc_kcore_init(void) add_modules_range(); /* Store direct-map area from physical memory map */ kcore_update_ram(); - hotplug_memory_notifier(kcore_callback, 0); + hotplug_memory_notifier(kcore_callback, DEFAULT_CALLBACK_PRI); return 0; } diff --git a/include/linux/memory-tiers.h b/include/linux/memory-tiers.h index 965009aa01d7..fc9647b1b4f9 100644 --- a/include/linux/memory-tiers.h +++ b/include/linux/memory-tiers.h @@ -18,7 +18,6 @@ * the same memory tier. */ #define MEMTIER_ADISTANCE_DRAM ((4 * MEMTIER_CHUNK_SIZE) + (MEMTIER_CHUNK_SIZE >> 1)) -#define MEMTIER_HOTPLUG_PRIO 100 struct memory_tier; struct memory_dev_type { diff --git a/include/linux/memory.h b/include/linux/memory.h index 98d2a2ebcc10..463662ef7614 100644 --- a/include/linux/memory.h +++ b/include/linux/memory.h @@ -112,8 +112,13 @@ struct mem_section; * Priorities for the hotplug memory callback routines (stored in decreasing * order in the callback chain) */ -#define SLAB_CALLBACK_PRI 1 -#define IPC_CALLBACK_PRI 10 +#define DEFAULT_CALLBACK_PRI 0 +#define SLAB_CALLBACK_PRI 1 +#define HMAT_CALLBACK_PRI 2 +#define MM_COMPUTE_BATCH_PRI 10 +#define CPUSET_CALLBACK_PRI 10 +#define MEMTIER_HOTPLUG_PRI 100 +#define KSM_CALLBACK_PRI 100 #ifndef CONFIG_MEMORY_HOTPLUG static inline void memory_dev_init(void) diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 0c6db6a4f427..3ea2e836e93e 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -3647,7 +3647,7 @@ void __init cpuset_init_smp(void) cpumask_copy(top_cpuset.effective_cpus, cpu_active_mask); top_cpuset.effective_mems = node_states[N_MEMORY]; - hotplug_memory_notifier(cpuset_track_online_nodes, 10); + hotplug_memory_notifier(cpuset_track_online_nodes, CPUSET_CALLBACK_PRI); cpuset_migrate_mm_wq = alloc_ordered_workqueue("cpuset_migrate_mm", 0); BUG_ON(!cpuset_migrate_mm_wq); diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c index 0e3648b603a6..2fba1f51f042 100644 --- a/mm/kasan/shadow.c +++ b/mm/kasan/shadow.c @@ -244,7 +244,7 @@ static int __meminit kasan_mem_notifier(struct notifier_block *nb, static int __init kasan_memhotplug_init(void) { - hotplug_memory_notifier(kasan_mem_notifier, 0); + hotplug_memory_notifier(kasan_mem_notifier, DEFAULT_CALLBACK_PRI); return 0; } diff --git a/mm/ksm.c b/mm/ksm.c index c19fcca9bc03..7ba97f86d831 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -3211,7 +3211,7 @@ static int __init ksm_init(void) #ifdef CONFIG_MEMORY_HOTREMOVE /* There is no significance to this priority 100 */ - hotplug_memory_notifier(ksm_memory_callback, 100); + hotplug_memory_notifier(ksm_memory_callback, KSM_CALLBACK_PRI); #endif return 0; diff --git a/mm/memory-tiers.c b/mm/memory-tiers.c index 33673ed9b3dc..212c4a81fe47 100644 --- a/mm/memory-tiers.c +++ b/mm/memory-tiers.c @@ -709,7 +709,7 @@ static int __init memory_tier_init(void) establish_demotion_targets(); mutex_unlock(&memory_tier_lock); - hotplug_memory_notifier(memtier_hotplug_callback, MEMTIER_HOTPLUG_PRIO); + hotplug_memory_notifier(memtier_hotplug_callback, MEMTIER_HOTPLUG_PRI); return 0; } subsys_initcall(memory_tier_init); diff --git a/mm/mm_init.c b/mm/mm_init.c index 44aadc162d1f..c1883362e71d 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -181,7 +181,7 @@ static int __meminit mm_compute_batch_notifier(struct notifier_block *self, static int __init mm_compute_batch_init(void) { mm_compute_batch(sysctl_overcommit_memory); - hotplug_memory_notifier(mm_compute_batch_notifier, IPC_CALLBACK_PRI); + hotplug_memory_notifier(mm_compute_batch_notifier, MM_COMPUTE_BATCH_PRI); return 0; } diff --git a/mm/mmap.c b/mm/mmap.c index 5a217378a62a..0fde397963f8 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -3747,7 +3747,7 @@ static int reserve_mem_notifier(struct notifier_block *nb, static int __meminit init_reserve_notifier(void) { - if (hotplug_memory_notifier(reserve_mem_notifier, 0)) + if (hotplug_memory_notifier(reserve_mem_notifier, DEFAULT_CALLBACK_PRI)) pr_err("Failed registering memory add/remove notifier for admin reserve\n"); return 0; diff --git a/mm/page_ext.c b/mm/page_ext.c index affe80243b6d..b2ff5c9129f4 100644 --- a/mm/page_ext.c +++ b/mm/page_ext.c @@ -513,7 +513,7 @@ void __init page_ext_init(void) cond_resched(); } } - hotplug_memory_notifier(page_ext_callback, 0); + hotplug_memory_notifier(page_ext_callback, DEFAULT_CALLBACK_PRI); pr_info("allocated %ld bytes of page_ext\n", total_usage); invoke_init_callbacks(); return;