From 0b97235b9f28c02060ef88c6b7bc5f92189ffa3a Mon Sep 17 00:00:00 2001
From: NAKAMURA Gou <go.nakamura.yw@hitachi-solutions.com>
Date: Tue, 28 May 2013 11:01:52 +0900
Subject: [PATCH] fix release leakage of extra pages

---
 kernel/process.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/process.c b/kernel/process.c
index fb0de1e2..b42e5daa 100644
--- a/kernel/process.c
+++ b/kernel/process.c
@@ -349,6 +349,9 @@ unsigned long extend_process_region(struct process *proc,
 		if (p_aligned > (unsigned long)p) {
 			free_pages(p, (p_aligned - (unsigned long)p) >> PAGE_SHIFT);
 		}
+		free_pages(
+			(void *)(p_aligned + aligned_new_end - aligned_end),
+			(LARGE_PAGE_SIZE - (p_aligned - (unsigned long)p)) >> PAGE_SHIFT);
 
 		add_process_memory_range(proc, aligned_end, aligned_new_end,
 				virt_to_phys((void *)p_aligned), flag);