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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, Hannes Reinecke Subject: [PATCH 7/7] mm: remove NR_BOUNCE zone stat Date: Mon, 5 May 2025 10:11:26 +0200 Message-ID: <20250505081138.3435992-8-hch@lst.de> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250505081138.3435992-1-hch@lst.de> References: <20250505081138.3435992-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 0EB668000F X-Rspam-User: X-Stat-Signature: jc1x9j7xiakxd8n1mupk8r6hnzotfsdp X-HE-Tag: 1746432725-206936 X-HE-Meta: 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 vBMyNWqt 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 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: List-Subscribe: List-Unsubscribe: The stat is always 0 now, so remove it and hardwire the user visible output to 0. Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke --- 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))); -- 2.47.2