These flag is meant the bit numbers, they are used like '(type & SLOTS_CACHE)' and so on. Define these flags using bit numbers instead of hardcoding powers of 2, which maybe better. No change in the actual values. Signed-off-by: Hui Su <sh_def@xxxxxxx> --- mm/swap_slots.c | 4 ++-- mm/swapfile.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/mm/swap_slots.c b/mm/swap_slots.c index 0357fbe70645..18e7a01fd35c 100644 --- a/mm/swap_slots.c +++ b/mm/swap_slots.c @@ -47,8 +47,8 @@ static void deactivate_swap_slots_cache(void); static void reactivate_swap_slots_cache(void); #define use_swap_slot_cache (swap_slot_cache_active && swap_slot_cache_enabled) -#define SLOTS_CACHE 0x1 -#define SLOTS_CACHE_RET 0x2 +#define SLOTS_CACHE (1 << 0) +#define SLOTS_CACHE_RET (1 << 1) static void deactivate_swap_slots_cache(void) { diff --git a/mm/swapfile.c b/mm/swapfile.c index c4a613688a17..a0476c121c0e 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -113,14 +113,14 @@ static inline unsigned char swap_count(unsigned char ent) } /* Reclaim the swap entry anyway if possible */ -#define TTRS_ANYWAY 0x1 +#define TTRS_ANYWAY (1 << 0) /* * Reclaim the swap entry if there are no more mappings of the * corresponding page */ -#define TTRS_UNMAPPED 0x2 +#define TTRS_UNMAPPED (1 << 1) /* Reclaim the swap entry if swap is getting full*/ -#define TTRS_FULL 0x4 +#define TTRS_FULL (1 << 2) /* returns 1 if swap entry is freed */ static int __try_to_reclaim_swap(struct swap_info_struct *si, -- 2.29.0