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mm/swap_slots.c: make swap_slots_cache_mutex and swap_slots_cache_enable_mutex static

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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>
This commit is contained in:
Colin Ian King 2018-08-17 15:46:54 -07:00 committed by Linus Torvalds
parent 4d0a5402f5
commit 31f21da181
1 changed files with 2 additions and 2 deletions
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4
mm/swap_slots.c
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@ -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);