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Message-ID: <20210114070817.GA2868715@AD01715016>
Date: Thu, 14 Jan 2021 16:08:17 +0900
From: Daeseok Youn <daeseok.youn@...il.com>
To: rppt@...nel.org, akpm@...ux-foundation.org, linux-mm@...ck.org,
linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH] mm: memblock: remove return value of memblock_free_all()
No one checks the return value of memblock_free_all().
Make the return value void.
memblock_free_all() is used on mem_init() for each
architecture, and the total count of freed pages will be added
to _totalram_pages variable by calling totalram_pages_add().
so do not need to return total count of freed pages.
Signed-off-by: Daeseok Youn <daeseok.youn@...il.com>
---
include/linux/memblock.h | 2 +-
mm/memblock.c | 6 +-----
2 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 9c5cc95c7cee..076fda398dff 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -117,7 +117,7 @@ int memblock_mark_mirror(phys_addr_t base, phys_addr_t size);
int memblock_mark_nomap(phys_addr_t base, phys_addr_t size);
int memblock_clear_nomap(phys_addr_t base, phys_addr_t size);
-unsigned long memblock_free_all(void);
+void memblock_free_all(void);
void reset_node_managed_pages(pg_data_t *pgdat);
void reset_all_zones_managed_pages(void);
void memblock_enforce_memory_reserved_overlap(void);
diff --git a/mm/memblock.c b/mm/memblock.c
index 40ca30bfa387..2a2b1fe4b659 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -2074,10 +2074,8 @@ void __init reset_all_zones_managed_pages(void)
/**
* memblock_free_all - release free pages to the buddy allocator
- *
- * Return: the number of pages actually released.
*/
-unsigned long __init memblock_free_all(void)
+void __init memblock_free_all(void)
{
unsigned long pages;
@@ -2086,8 +2084,6 @@ unsigned long __init memblock_free_all(void)
pages = free_low_memory_core_early();
totalram_pages_add(pages);
-
- return pages;
}
#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_ARCH_KEEP_MEMBLOCK)
--
2.25.1
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