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authorColin Ian King <colin.king@canonical.com>2018-08-17 15:46:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-17 16:20:30 -0700
commit31f21da18132fc971297175077fafa3bd4184dc1 (patch)
treeb81e68c4fc17f16c43b2ea8466b9a71b2dc9182a
parent4d0a5402f505eafe5b0a77f2dc77bb6c2e25a714 (diff)
mm/swap_slots.c: make swap_slots_cache_mutex and swap_slots_cache_enable_mutex static
The mutexes swap_slots_cache_mutex and swap_slots_cache_enable_mutex are local to the source and do not need to be in global scope, so make them static. Cleans up sparse warnings: symbol 'swap_slots_cache_mutex' was not declared. Should it be static? symbol 'swap_slots_cache_enable_mutex' was not declared. Should it be static? Link: http://lkml.kernel.org/r/20180624182536.4937-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/swap_slots.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/swap_slots.c b/mm/swap_slots.c
index a791411fed71..008ccb22fee6 100644
--- a/mm/swap_slots.c
+++ b/mm/swap_slots.c
@@ -38,9 +38,9 @@ static DEFINE_PER_CPU(struct swap_slots_cache, swp_slots);
static bool swap_slot_cache_active;
bool swap_slot_cache_enabled;
static bool swap_slot_cache_initialized;
-DEFINE_MUTEX(swap_slots_cache_mutex);
+static DEFINE_MUTEX(swap_slots_cache_mutex);
/* Serialize swap slots cache enable/disable operations */
-DEFINE_MUTEX(swap_slots_cache_enable_mutex);
+static DEFINE_MUTEX(swap_slots_cache_enable_mutex);
static void __drain_swap_slots_cache(unsigned int type);
static void deactivate_swap_slots_cache(void);