diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-02 11:24:44 -0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-02 11:24:44 -0800 |
commit | bd1d462e13b278fc57752d0b9b15040e60e561a0 (patch) | |
tree | e2fdf1c18a93aab02830bcb8a5db8cdddfbb63a8 /net/core/net_namespace.c | |
parent | d5c38b137ac8a6e3dbed13bc494d60df5b69dfc4 (diff) | |
parent | 62aa2b537c6f5957afd98e29f96897419ed5ebab (diff) | |
download | op-kernel-dev-bd1d462e13b278fc57752d0b9b15040e60e561a0.zip op-kernel-dev-bd1d462e13b278fc57752d0b9b15040e60e561a0.tar.gz |
Merge 3.3-rc2 into the driver-core-next branch.
This was done to resolve a merge and build problem with the
drivers/acpi/processor_driver.c file.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core/net_namespace.c')
-rw-r--r-- | net/core/net_namespace.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index aefcd7a..0e950fd 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -30,6 +30,20 @@ EXPORT_SYMBOL(init_net); #define INITIAL_NET_GEN_PTRS 13 /* +1 for len +2 for rcu_head */ +static unsigned int max_gen_ptrs = INITIAL_NET_GEN_PTRS; + +static struct net_generic *net_alloc_generic(void) +{ + struct net_generic *ng; + size_t generic_size = offsetof(struct net_generic, ptr[max_gen_ptrs]); + + ng = kzalloc(generic_size, GFP_KERNEL); + if (ng) + ng->len = max_gen_ptrs; + + return ng; +} + static int net_assign_generic(struct net *net, int id, void *data) { struct net_generic *ng, *old_ng; @@ -43,8 +57,7 @@ static int net_assign_generic(struct net *net, int id, void *data) if (old_ng->len >= id) goto assign; - ng = kzalloc(sizeof(struct net_generic) + - id * sizeof(void *), GFP_KERNEL); + ng = net_alloc_generic(); if (ng == NULL) return -ENOMEM; @@ -59,7 +72,6 @@ static int net_assign_generic(struct net *net, int id, void *data) * the old copy for kfree after a grace period. */ - ng->len = id; memcpy(&ng->ptr, &old_ng->ptr, old_ng->len * sizeof(void*)); rcu_assign_pointer(net->gen, ng); @@ -161,18 +173,6 @@ out_undo: goto out; } -static struct net_generic *net_alloc_generic(void) -{ - struct net_generic *ng; - size_t generic_size = sizeof(struct net_generic) + - INITIAL_NET_GEN_PTRS * sizeof(void *); - - ng = kzalloc(generic_size, GFP_KERNEL); - if (ng) - ng->len = INITIAL_NET_GEN_PTRS; - - return ng; -} #ifdef CONFIG_NET_NS static struct kmem_cache *net_cachep; @@ -483,6 +483,7 @@ again: } return error; } + max_gen_ptrs = max_t(unsigned int, max_gen_ptrs, *ops->id); } error = __register_pernet_operations(list, ops); if (error) { |