From patchwork Fri May 2 06:49:24 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 886914 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 AF84B266581; Fri, 2 May 2025 06:49:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746168593; cv=none; b=am9F7bTeTVM41/d07ecCWxA03G+jczWg1a5tz73xM+8dxv9gWORH9/v1l77+03bMk8nx2MnrmVfOJXMHO1iCZQymLsXHA4fJwHuMMhl14sljwBeQCl3mSsjceJbXiaVOC5njyqwbhjrIWeQsLqYBJp5MLsmXUEm9tlMrRwuVNl0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746168593; c=relaxed/simple; bh=1lWCpmASBkK924/7jJLz5e2c6unvL106KVoor8LqoI8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OLsIPIzyzsR0raZObYeJ5JlKbPUH78AVsHWQJXUzacdFFwwFDLuJcDCErO3BpLgTRfkTBdeT9fyi65lOTTu2eE/6vIraI5LmlwpFaADfLK+nydJDNmOdhGnD6gRhLcHqghOspv+N1ksckNa+n5dEvYLpniNd2vc4ZWVoWk3UmCk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=lst.de; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=1l/tBuFS; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="1l/tBuFS" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=pmkmrZp/v2r7YXacZ37i5GXFUiZ8QGj+39EQV0YIZ1A=; b=1l/tBuFSvjow20r4IxavImVI1G Pqceo77c9f7FzXAOb166YUE98dQOQX57lbMjZvQDFXIP/pgYnpROMt3mqJrZ5UdkqAadKpNBhpoEq dFsHGUBO1LRIayqyEXOLTXNeQ7Rt1HzLdtYB6DT+d/QEbAyVrYsmIkntndecm6FfaT2gZX2ui9Rse zrubul71FfZ4InMrwHtFL5bQr+z8T+rMaBIXcxc7twu6qwpxJ2jhXh0qCcSe8yt30aDhoTU7yzfuU M5kyCND1jhCNLk1m6fyVM6uyc1J8frATpmFdn8hW2IQz9msgRwAUTFxhvaujt+86JQloHAIwA5aLD Ewpmf7MA==; Received: from [185.143.37.16] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1uAkDV-0000000117Q-3K8m; Fri, 02 May 2025 06:49:50 +0000 From: Christoph Hellwig To: Jens Axboe Cc: "Martin K. Petersen" , "Juergen E. Fischer" , Alan Stern , Andrew Morton , linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, linux-usb@vger.kernel.org, usb-storage@lists.one-eyed-alien.net, linux-mm@kvack.org Subject: [PATCH 7/7] mm: remove NR_BOUNCE zone stat Date: Fri, 2 May 2025 07:49:24 +0100 Message-ID: <20250502064930.2981820-8-hch@lst.de> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250502064930.2981820-1-hch@lst.de> References: <20250502064930.2981820-1-hch@lst.de> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html The stat is always 0 now, so remove it and hardwire the user visible output to 0. Signed-off-by: Christoph Hellwig --- drivers/base/node.c | 2 +- fs/proc/meminfo.c | 3 +-- include/linux/mmzone.h | 1 - mm/show_mem.c | 4 ++-- 4 files changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/base/node.c b/drivers/base/node.c index cd13ef287011..618712071a1e 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -468,7 +468,7 @@ static ssize_t node_read_meminfo(struct device *dev, nid, K(node_page_state(pgdat, NR_PAGETABLE)), nid, K(node_page_state(pgdat, NR_SECONDARY_PAGETABLE)), nid, 0UL, - nid, K(sum_zone_node_page_state(nid, NR_BOUNCE)), + nid, 0UL, nid, K(node_page_state(pgdat, NR_WRITEBACK_TEMP)), nid, K(sreclaimable + node_page_state(pgdat, NR_KERNEL_MISC_RECLAIMABLE)), diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c index 83be312159c9..bc2bc60c36cc 100644 --- a/fs/proc/meminfo.c +++ b/fs/proc/meminfo.c @@ -120,8 +120,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v) global_node_page_state(NR_SECONDARY_PAGETABLE)); show_val_kb(m, "NFS_Unstable: ", 0); - show_val_kb(m, "Bounce: ", - global_zone_page_state(NR_BOUNCE)); + show_val_kb(m, "Bounce: ", 0); show_val_kb(m, "WritebackTmp: ", global_node_page_state(NR_WRITEBACK_TEMP)); show_val_kb(m, "CommitLimit: ", vm_commit_limit()); diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 6ccec1bf2896..b1c459f7a485 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -148,7 +148,6 @@ enum zone_stat_item { NR_ZONE_WRITE_PENDING, /* Count of dirty, writeback and unstable pages */ NR_MLOCK, /* mlock()ed pages found and moved off LRU */ /* Second 128 byte cacheline */ - NR_BOUNCE, #if IS_ENABLED(CONFIG_ZSMALLOC) NR_ZSPAGES, /* allocated in zsmalloc */ #endif diff --git a/mm/show_mem.c b/mm/show_mem.c index 6af13bcd2ab3..5acb51a9fc49 100644 --- a/mm/show_mem.c +++ b/mm/show_mem.c @@ -223,7 +223,7 @@ static void show_free_areas(unsigned int filter, nodemask_t *nodemask, int max_z global_node_page_state(NR_SHMEM), global_node_page_state(NR_PAGETABLE), global_node_page_state(NR_SECONDARY_PAGETABLE), - global_zone_page_state(NR_BOUNCE), + 0UL, global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE), global_zone_page_state(NR_FREE_PAGES), free_pcp, @@ -341,7 +341,7 @@ static void show_free_areas(unsigned int filter, nodemask_t *nodemask, int max_z K(zone->present_pages), K(zone_managed_pages(zone)), K(zone_page_state(zone, NR_MLOCK)), - K(zone_page_state(zone, NR_BOUNCE)), + 0UL, K(free_pcp), K(this_cpu_read(zone->per_cpu_pageset->count)), K(zone_page_state(zone, NR_FREE_CMA_PAGES)));