diff options
Diffstat (limited to 'kernel/mm/mempool.c')
| -rw-r--r-- | kernel/mm/mempool.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/kernel/mm/mempool.c b/kernel/mm/mempool.c index 2cc08de8b..004d42b1d 100644 --- a/kernel/mm/mempool.c +++ b/kernel/mm/mempool.c @@ -150,6 +150,9 @@ static void *remove_element(mempool_t *pool) */ void mempool_destroy(mempool_t *pool) { + if (unlikely(!pool)) + return; + while (pool->curr_nr) { void *element = remove_element(pool); pool->free(element, pool->pool_data); @@ -317,13 +320,13 @@ void * mempool_alloc(mempool_t *pool, gfp_t gfp_mask) gfp_t gfp_temp; VM_WARN_ON_ONCE(gfp_mask & __GFP_ZERO); - might_sleep_if(gfp_mask & __GFP_WAIT); + might_sleep_if(gfp_mask & __GFP_DIRECT_RECLAIM); gfp_mask |= __GFP_NOMEMALLOC; /* don't allocate emergency reserves */ gfp_mask |= __GFP_NORETRY; /* don't loop in __alloc_pages */ gfp_mask |= __GFP_NOWARN; /* failures are OK */ - gfp_temp = gfp_mask & ~(__GFP_WAIT|__GFP_IO); + gfp_temp = gfp_mask & ~(__GFP_DIRECT_RECLAIM|__GFP_IO); repeat_alloc: @@ -346,7 +349,7 @@ repeat_alloc: } /* - * We use gfp mask w/o __GFP_WAIT or IO for the first round. If + * We use gfp mask w/o direct reclaim or IO for the first round. If * alloc failed with that and @pool was empty, retry immediately. */ if (gfp_temp != gfp_mask) { @@ -355,8 +358,8 @@ repeat_alloc: goto repeat_alloc; } - /* We must not sleep if !__GFP_WAIT */ - if (!(gfp_mask & __GFP_WAIT)) { + /* We must not sleep if !__GFP_DIRECT_RECLAIM */ + if (!(gfp_mask & __GFP_DIRECT_RECLAIM)) { spin_unlock_irqrestore(&pool->lock, flags); return NULL; } |