From 31f21da18132fc971297175077fafa3bd4184dc1 Mon Sep 17 00:00:00 2001 From: Colin Ian King <colin.king@canonical.com> Date: Fri, 17 Aug 2018 15:46:54 -0700 Subject: [PATCH] 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> --- mm/swap_slots.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/swap_slots.c b/mm/swap_slots.c index a791411fed7166..008ccb22fee6c3 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); -- GitLab