xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: Use non-zero allocations in dst_alloc().

Browse Source 
Make dst_alloc() and it's users explicitly initialize the entire
entry.

The zero'ing done by kmem_cache_zalloc() was almost entirely
redundant.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2011-04-28 14:31:47 -07:00
parent 5c1e6aa300
commit cf91166223
5 changed files with 78 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
net/core/dst.c
View File

@@ -175,22 +175,36 @@ void *dst_alloc(struct dst_ops *ops, struct net_device *dev,
if (ops->gc(ops))
return NULL;
}
dst = kmem_cache_zalloc(ops->kmem_cachep, GFP_ATOMIC);
dst = kmem_cache_alloc(ops->kmem_cachep, GFP_ATOMIC);
if (!dst)
return NULL;
dst->ops = ops;
dst->child = NULL;
dst->dev = dev;
if (dev)
dev_hold(dev);
dst->ops = ops;
dst_init_metrics(dst, dst_default_metrics, true);
dst->expires = 0UL;
dst->path = dst;
dst->neighbour = NULL;
dst->hh = NULL;
#ifdef CONFIG_XFRM
dst->xfrm = NULL;
#endif
dst->input = dst_discard;
dst->output = dst_discard;
dst->error = 0;
dst->obsolete = initial_obsolete;
dst->header_len = 0;
dst->trailer_len = 0;
#ifdef CONFIG_IP_ROUTE_CLASSID
dst->tclassid = 0;
#endif
atomic_set(&dst->__refcnt, initial_ref);
dst->__use = 0;
dst->lastuse = jiffies;
dst->flags = flags;
dst->next = NULL;
#if RT_CACHE_DEBUG >= 2
atomic_inc(&dst_total);
#endif