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Merge "mm: swap: free up swap on mm reap"

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qctecmdr 2019-10-24 16:42:58 -07:00 • committed by Gerrit - the friendly Code Review server
commit b8a219dfca
1 changed files with 4 additions and 1 deletions
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5
mm/swap_slots.c
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@ -278,9 +278,12 @@ static int refill_swap_slots_cache(struct swap_slots_cache *cache)
int free_swap_slot(swp_entry_t entry)
{
struct swap_slots_cache *cache;
struct swap_info_struct *si;
si = swp_swap_info(entry);
cache = raw_cpu_ptr(&swp_slots);
if (likely(use_swap_slot_cache && cache->slots_ret)) {
if (!(si->flags & SWP_SYNCHRONOUS_IO) &&
use_swap_slot_cache && cache->slots_ret) {
spin_lock_irq(&cache->free_lock);
/* Swap slots cache may be deactivated before acquiring lock */
if (!use_swap_slot_cache || !cache->slots_ret) {