diff options
Diffstat (limited to 'net/tipc/core.c')
| -rw-r--r-- | net/tipc/core.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/net/tipc/core.c b/net/tipc/core.c index 52c571fedbe..69646811798 100644 --- a/net/tipc/core.c +++ b/net/tipc/core.c @@ -49,8 +49,6 @@ #include "config.h" -#define TIPC_MOD_VER "1.6.4" - #ifndef CONFIG_TIPC_ZONES #define CONFIG_TIPC_ZONES 3 #endif @@ -104,6 +102,30 @@ int tipc_get_mode(void) } /** + * 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 *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; +} + +/** * tipc_core_stop_net - shut down TIPC networking sub-systems */ |