diff options
Diffstat (limited to 'net/core/dst.c')
| -rw-r--r-- | net/core/dst.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/net/core/dst.c b/net/core/dst.c index 836ec6606925..61dd9d3951f1 100644 --- a/net/core/dst.c +++ b/net/core/dst.c @@ -29,7 +29,7 @@ * 4) All operations modify state, so a spinlock is used. */ static struct dst_entry *dst_garbage_list; -#if RT_CACHE_DEBUG >= 2 +#if RT_CACHE_DEBUG >= 2 static atomic_t dst_total = ATOMIC_INIT(0); #endif static DEFINE_SPINLOCK(dst_lock); @@ -99,7 +99,14 @@ static void dst_run_gc(unsigned long dummy) printk("dst_total: %d/%d %ld\n", atomic_read(&dst_total), delayed, dst_gc_timer_expires); #endif - mod_timer(&dst_gc_timer, jiffies + dst_gc_timer_expires); + /* if the next desired timer is more than 4 seconds in the future + * then round the timer to whole seconds + */ + if (dst_gc_timer_expires > 4*HZ) + mod_timer(&dst_gc_timer, + round_jiffies(jiffies + dst_gc_timer_expires)); + else + mod_timer(&dst_gc_timer, jiffies + dst_gc_timer_expires); out: spin_unlock(&dst_lock); @@ -125,17 +132,16 @@ void * dst_alloc(struct dst_ops * ops) if (ops->gc()) return NULL; } - dst = kmem_cache_alloc(ops->kmem_cachep, GFP_ATOMIC); + dst = kmem_cache_zalloc(ops->kmem_cachep, GFP_ATOMIC); if (!dst) return NULL; - memset(dst, 0, ops->entry_size); atomic_set(&dst->__refcnt, 0); dst->ops = ops; dst->lastuse = jiffies; dst->path = dst; dst->input = dst_discard_in; dst->output = dst_discard_out; -#if RT_CACHE_DEBUG >= 2 +#if RT_CACHE_DEBUG >= 2 atomic_inc(&dst_total); #endif atomic_inc(&ops->entries); @@ -196,7 +202,7 @@ again: dst->ops->destroy(dst); if (dst->dev) dev_put(dst->dev); -#if RT_CACHE_DEBUG >= 2 +#if RT_CACHE_DEBUG >= 2 atomic_dec(&dst_total); #endif kmem_cache_free(dst->ops->kmem_cachep, dst); |