diff options
| author | Ying Xue <ying.xue@windriver.com> | 2015-01-09 07:27:01 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-12 21:24:31 (GMT) |
| commit | 859fc7c0cedca0f84dac471fa31e9512259e1ecd (patch) | |
| tree | f2a691e4a01426aa4c44f202a409eca43e18f7c6 /net/tipc/msg.c | |
| parent | 2f55c43788df7358be8c6e78ae2a3d3268e7afb6 (diff) | |
| download | linux-859fc7c0cedca0f84dac471fa31e9512259e1ecd.tar.xz | |
tipc: cleanup core.c and core.h files
Only the works of initializing and shutting down tipc module are done
in core.h and core.c files, so all stuffs which are not closely
associated with the two tasks should be moved to appropriate places.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Tested-by: Tero Aho <Tero.Aho@coriant.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/msg.c')
| -rw-r--r-- | net/tipc/msg.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/net/tipc/msg.c b/net/tipc/msg.c index a687b30..35523fb 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -46,6 +46,29 @@ static unsigned int align(unsigned int i) return (i + 3) & ~3u; } +/** + * tipc_buf_acquire - creates a TIPC message buffer + * @size: message size (including TIPC header) + * + * Returns a new buffer with data pointers set to the specified size. + * + * NOTE: Headroom is reserved to allow prepending of a data link header. + * There may also be unrequested tailroom present at the buffer's end. + */ +struct sk_buff *tipc_buf_acquire(u32 size) +{ + struct sk_buff *skb; + unsigned int buf_size = (BUF_HEADROOM + size + 3) & ~3u; + + skb = alloc_skb_fclone(buf_size, GFP_ATOMIC); + if (skb) { + skb_reserve(skb, BUF_HEADROOM); + skb_put(skb, size); + skb->next = NULL; + } + return skb; +} + void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize, u32 destnode) { |