diff options
| -rw-r--r-- | mm/zswap.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/mm/zswap.c b/mm/zswap.c index 59da2a415fbb..bcb82e09eb64 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -37,6 +37,7 @@ #include <linux/workqueue.h> #include "swap.h" +#include "internal.h" /********************************* * statistics @@ -587,9 +588,19 @@ static void shrink_worker(struct work_struct *w) { struct zswap_pool *pool = container_of(w, typeof(*pool), shrink_work); + int ret, failures = 0; - if (zpool_shrink(pool->zpool, 1, NULL)) - zswap_reject_reclaim_fail++; + do { + ret = zpool_shrink(pool->zpool, 1, NULL); + if (ret) { + zswap_reject_reclaim_fail++; + if (ret != -EAGAIN) + break; + if (++failures == MAX_RECLAIM_RETRIES) + break; + } + cond_resched(); + } while (!zswap_can_accept()); zswap_pool_put(pool); } @@ -1188,7 +1199,7 @@ static int zswap_frontswap_store(unsigned type, pgoff_t offset, if (zswap_pool_reached_full) { if (!zswap_can_accept()) { ret = -ENOMEM; - goto reject; + goto shrink; } else zswap_pool_reached_full = false; } |