linux-kernel - [RESEND PATCH v2 08/12] mm: memcontrol: convert NR_KERNEL_SCS

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Date:   Sun,  6 Dec 2020 18:14:47 +0800
From:   Muchun Song <songmuchun@...edance.com>
To:     gregkh@...uxfoundation.org, rafael@...nel.org, adobriyan@...il.com,
        akpm@...ux-foundation.org, hannes@...xchg.org, mhocko@...nel.org,
        vdavydov.dev@...il.com, hughd@...gle.com, will@...nel.org,
        guro@...com, rppt@...nel.org, tglx@...utronix.de, esyr@...hat.com,
        peterx@...hat.com, krisman@...labora.com, surenb@...gle.com,
        avagin@...nvz.org, elver@...gle.com, rdunlap@...radead.org,
        iamjoonsoo.kim@....com
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-mm@...ck.org, cgroups@...r.kernel.org,
        Muchun Song <songmuchun@...edance.com>
Subject: [RESEND PATCH v2 08/12] mm: memcontrol: convert NR_KERNEL_SCS_KB account to bytes

Convert NR_KERNEL_SCS_KB account to bytes

Signed-off-by: Muchun Song <songmuchun@...edance.com>
---
 drivers/base/node.c    | 2 +-
 fs/proc/meminfo.c      | 2 +-
 include/linux/mmzone.h | 2 +-
 kernel/scs.c           | 4 ++--
 mm/page_alloc.c        | 2 +-
 5 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/base/node.c b/drivers/base/node.c
index 92a75bad35c9..bc01ce0b2fcd 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -448,7 +448,7 @@ static ssize_t node_read_meminfo(struct device *dev,
 			     nid, K(i.sharedram),
 			     nid, node_page_state(pgdat, NR_KERNEL_STACK_B) / SZ_1K,
 #ifdef CONFIG_SHADOW_CALL_STACK
-			     nid, node_page_state(pgdat, NR_KERNEL_SCS_KB),
+			     nid, node_page_state(pgdat, NR_KERNEL_SCS_B) / SZ_1K,
 #endif
 			     nid, K(sum_zone_node_page_state(nid, NR_PAGETABLE)),
 			     nid, 0UL,
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 799a537d4218..69895e83d4fc 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -104,7 +104,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 		   global_node_page_state(NR_KERNEL_STACK_B) / SZ_1K);
 #ifdef CONFIG_SHADOW_CALL_STACK
 	seq_printf(m, "ShadowCallStack:%8lu kB\n",
-		   global_node_page_state(NR_KERNEL_SCS_KB));
+		   global_node_page_state(NR_KERNEL_SCS_B) / SZ_1K);
 #endif
 	show_val_kb(m, "PageTables:     ",
 		    global_zone_page_state(NR_PAGETABLE));
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index bd34416293ec..1f9c83778629 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -204,7 +204,7 @@ enum node_stat_item {
 	NR_FOLL_PIN_RELEASED,	/* pages returned via unpin_user_page() */
 	NR_KERNEL_STACK_B,	/* measured in byte */
 #if IS_ENABLED(CONFIG_SHADOW_CALL_STACK)
-	NR_KERNEL_SCS_KB,	/* measured in KiB */
+	NR_KERNEL_SCS_B,	/* measured in byte */
 #endif
 	NR_VM_NODE_STAT_ITEMS
 };
diff --git a/kernel/scs.c b/kernel/scs.c
index 4ff4a7ba0094..8db89c932ddc 100644
--- a/kernel/scs.c
+++ b/kernel/scs.c
@@ -17,8 +17,8 @@ static void __scs_account(void *s, int account)
 {
 	struct page *scs_page = virt_to_page(s);
 
-	mod_node_page_state(page_pgdat(scs_page), NR_KERNEL_SCS_KB,
-			    account * (SCS_SIZE / SZ_1K));
+	mod_node_page_state(page_pgdat(scs_page), NR_KERNEL_SCS_B,
+			    account * SCS_SIZE);
 }
 
 static void *scs_alloc(int node)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index d2821ba7f682..58916b3afdab 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5574,7 +5574,7 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask)
 			K(node_page_state(pgdat, NR_WRITEBACK_TEMP)),
 			node_page_state(pgdat, NR_KERNEL_STACK_B) / SZ_1K,
 #ifdef CONFIG_SHADOW_CALL_STACK
-			node_page_state(pgdat, NR_KERNEL_SCS_KB),
+			node_page_state(pgdat, NR_KERNEL_SCS_B) / SZ_1K,
 #endif
 			pgdat->kswapd_failures >= MAX_RECLAIM_RETRIES ?
 				"yes" : "no");
-- 
2.11.0