From: Bjorn Steinbrink <B.Steinbrink@gmx.de>
Date: Tue, 17 May 2005 04:53:17 +0000 (-0700)
Subject: [PATCH] mm: fix rss counter being incremented when unmapping
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=202d182a92c60416680e31baa697faa60b0882f5;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PATCH] mm: fix rss counter being incremented when unmapping

This patch fixes a bug introduced by the "mm counter operations through
macros" patch, which replaced a decrement operation in with an increment
macro in try_to_unmap_one().

Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/mm/rmap.c b/mm/rmap.c
index 378de234c12b..a6203b4e1278 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -586,7 +586,7 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma)
 		dec_mm_counter(mm, anon_rss);
 	}
 
-	inc_mm_counter(mm, rss);
+	dec_mm_counter(mm, rss);
 	page_remove_rmap(page);
 	page_cache_release(page);