diff mbox series

[4/5] mm/swap: remove unused global variable nr_swapper_spaces

Message ID 20210518135352.3705306-5-linmiaohe@huawei.com (mailing list archive)
State New, archived
Headers show
Series Cleanups for swap | expand

Commit Message

Miaohe Lin May 18, 2021, 1:53 p.m. UTC 
Since commit b6038942480e ("mm: memcg: add swapcache stat for memcg v2"),
the last user of nr_swapper_spaces is gone. So we remove this unused one.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
 mm/swap_state.c | 3 ---
 1 file changed, 3 deletions(-)
diff mbox series

Patch

diff --git a/mm/swap_state.c b/mm/swap_state.c
index bab386c7b655..a55b7b74b0e6 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -37,7 +37,6 @@  static const struct address_space_operations swap_aops = {
 };
 
 struct address_space *swapper_spaces[MAX_SWAPFILES] __read_mostly;
-static unsigned int nr_swapper_spaces[MAX_SWAPFILES] __read_mostly;
 static bool enable_vma_readahead __read_mostly = true;
 
 #define SWAP_RA_WIN_SHIFT	(PAGE_SHIFT / 2)
@@ -686,7 +685,6 @@  int init_swap_address_space(unsigned int type, unsigned long nr_pages)
 		/* swap cache doesn't use writeback related tags */
 		mapping_set_no_writeback_tags(space);
 	}
-	nr_swapper_spaces[type] = nr;
 	swapper_spaces[type] = spaces;
 
 	return 0;
@@ -695,7 +693,6 @@  int init_swap_address_space(unsigned int type, unsigned long nr_pages)
 void exit_swap_address_space(unsigned int type)
 {
 	kvfree(swapper_spaces[type]);
-	nr_swapper_spaces[type] = 0;
 	swapper_spaces[type] = NULL;
 }