diff options
| author | Patrick McHardy <kaber@trash.net> | 2007-07-07 22:27:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-07-10 22:17:39 -0700 |
| commit | 8e5105a0c36a059dfd0f0bb9e73ee7c97d306247 (patch) | |
| tree | b1bdbfeaa011544a3e1a5b3e44eca4bdd0bb8f7e /net | |
| parent | 61eb3107cd8e0302f95aae26206e552365daf290 (diff) | |
[NETFILTER]: nf_conntrack: round up hashsize to next multiple of PAGE_SIZE
Don't let the rest of the page go to waste.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nf_conntrack_core.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 035eb9f4a61..54acac5c6ea 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -965,12 +965,14 @@ void nf_conntrack_cleanup(void) nf_conntrack_helper_fini(); } -static struct list_head *alloc_hashtable(int size, int *vmalloced) +static struct list_head *alloc_hashtable(int *sizep, int *vmalloced) { struct list_head *hash; - unsigned int i; + unsigned int size, i; *vmalloced = 0; + + size = *sizep = roundup(*sizep, PAGE_SIZE / sizeof(struct list_head)); hash = (void*)__get_free_pages(GFP_KERNEL, get_order(sizeof(struct list_head) * size)); @@ -1003,7 +1005,7 @@ int set_hashsize(const char *val, struct kernel_param *kp) if (!hashsize) return -EINVAL; - hash = alloc_hashtable(hashsize, &vmalloced); + hash = alloc_hashtable(&hashsize, &vmalloced); if (!hash) return -ENOMEM; @@ -1053,19 +1055,19 @@ int __init nf_conntrack_init(void) if (nf_conntrack_htable_size < 16) nf_conntrack_htable_size = 16; } - nf_conntrack_max = 8 * nf_conntrack_htable_size; - - printk("nf_conntrack version %s (%u buckets, %d max)\n", - NF_CONNTRACK_VERSION, nf_conntrack_htable_size, - nf_conntrack_max); - - nf_conntrack_hash = alloc_hashtable(nf_conntrack_htable_size, + nf_conntrack_hash = alloc_hashtable(&nf_conntrack_htable_size, &nf_conntrack_vmalloc); if (!nf_conntrack_hash) { printk(KERN_ERR "Unable to create nf_conntrack_hash\n"); goto err_out; } + nf_conntrack_max = 8 * nf_conntrack_htable_size; + + printk("nf_conntrack version %s (%u buckets, %d max)\n", + NF_CONNTRACK_VERSION, nf_conntrack_htable_size, + nf_conntrack_max); + nf_conntrack_cachep = kmem_cache_create("nf_conntrack", sizeof(struct nf_conn), 0, 0, NULL, NULL); |