linux-kernel - [PATCH v1] vmscan: make drop_slab

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Date:   Thu, 11 Nov 2021 14:24:44 +0800
From:   Gang Li <ligang.bdlg@...edance.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Gang Li <ligang.bdlg@...edance.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1] vmscan: make drop_slab_node static

drop_slab_node is only used in drop_slab. So remove it's declaration from
header file and add keyword static for it's definition.

Signed-off-by: Gang Li <ligang.bdlg@...edance.com>
---
 include/linux/mm.h | 1 -
 mm/vmscan.c        | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index a7e4a9e7d807..08b36283a57a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -3167,7 +3167,6 @@ int drop_caches_sysctl_handler(struct ctl_table *, int, void *, size_t *,
 #endif
 
 void drop_slab(void);
-void drop_slab_node(int nid);
 
 #ifndef CONFIG_MMU
 #define randomize_va_space 0
diff --git a/mm/vmscan.c b/mm/vmscan.c
index fb9584641ac7..b02548a32a1d 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -951,7 +951,7 @@ static unsigned long shrink_slab(gfp_t gfp_mask, int nid,
 	return freed;
 }
 
-void drop_slab_node(int nid)
+static void drop_slab_node(int nid)
 {
 	unsigned long freed;
 	int shift = 0;
-- 
2.20.1