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Herbert Xu 5b057c6b1a [NET]: Avoid allocating skb in skb_pad 
First of all it is unnecessary to allocate a new skb in skb_pad since
the existing one is not shared.  More importantly, our hard_start_xmit
interface does not allow a new skb to be allocated since that breaks
requeueing.

This patch uses pskb_expand_head to expand the existing skb and linearize
it if needed.  Actually, someone should sift through every instance of
skb_pad on a non-linear skb as they do not fit the reasons why this was
originally created.

Incidentally, this fixes a minor bug when the skb is cloned (tcpdump,
TCP, etc.).  As it is skb_pad will simply write over a cloned skb.  Because
of the position of the write it is unlikely to cause problems but still
it's best if we don't do it.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2006-06-23 02:06:41 -07:00
..
802 [TR]: Remove an unused export. 2006-05-16 15:23:40 -07:00
8021q [NET]: Replace skb_pull/skb_postpull_rcsum with skb_pull_rcsum 2006-03-20 22:43:56 -08:00
appletalk [NET]: Fix ipx/econet/appletalk/irda ioctl crashes 2006-03-28 17:02:43 -08:00
atm [ATM]: fix broken uses of NIPQUAD in net/atm 2006-06-20 03:27:27 -07:00
ax25 [AX.25]: Eleminate HZ from AX.25 kernel interfaces 2006-05-03 23:27:16 -07:00
bluetooth [BLUETOOTH] sco: Possible double free. 2006-04-09 22:25:29 -07:00
bridge [BRIDGE]: Add support for NETIF_F_HW_CSUM devices 2006-06-17 22:06:45 -07:00
core [NET]: Avoid allocating skb in skb_pad 2006-06-23 02:06:41 -07:00
dccp [I/OAT]: Make sk_eat_skb I/OAT aware. 2006-06-17 21:25:52 -07:00
decnet [NET]: Clean up skb_linearize 2006-06-17 21:30:16 -07:00
econet [ECONET]: Convert away from SOCKOPS_WRAPPED 2006-03-28 17:02:43 -08:00
ethernet [NET]: Eliminate unused /proc/sys/net/ethernet 2006-06-05 15:34:11 -07:00
ieee80211 [PATCH] wireless: correct dump of WPA IE 2006-06-15 15:48:14 -04:00
ipv4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2006-06-19 19:01:59 -07:00
ipv6 [IPV6]: Sum real space for RTAs. 2006-06-17 22:48:48 -07:00
ipx [IPX]: Endian bug in ipxrtr_route_packet() 2006-06-17 21:30:24 -07:00
irda [IRDA]: Use put_unaligned() in irlmp_do_discovery(). 2006-06-17 22:16:13 -07:00
key [LSM-IPsec]: SELinux Authorize 2006-06-17 21:29:45 -07:00
lapb [NET]: Kill skb->list 2005-08-29 15:31:14 -07:00
llc [LLC]: Fix double receive of SKB. 2006-06-17 21:29:19 -07:00
netfilter [NETFILTER]: xt_sctp: fix endless loop caused by 0 chunk length 2006-06-19 23:39:45 -07:00
netlink Merge branch 'audit.b10' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current 2006-05-01 21:43:05 -07:00
netrom [NETROM/ROSE]: Kill module init version kernel log messages. 2006-05-05 17:19:26 -07:00
packet [NET]: Fix some whitespace issues in af_packet.c 2006-01-23 16:28:02 -08:00
rose [NETROM/ROSE]: Kill module init version kernel log messages. 2006-05-05 17:19:26 -07:00
rxrpc [PATCH] fix 'defined but not used' warning in net/rxrpc/main.c::rxrpc_initialise 2006-03-25 08:22:52 -08:00
sched [NET]: Prevent multiple qdisc runs 2006-06-19 23:57:59 -07:00
sctp [SCTP]: sctp_unpack_cookie() fix 2006-06-20 03:26:14 -07:00
sunrpc [PATCH] knfsd: Fix two problems that can cause rmmod nfsd to die 2006-05-23 10:35:31 -07:00
tipc [NET]: Remove redundant NULL checks before [kv]free 2006-04-18 15:57:55 -07:00
unix [PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications 2006-03-25 08:22:56 -08:00
wanrouter [WAN]: Remove broken and unmaintained Sangoma drivers. 2006-04-11 17:28:33 -07:00
x25 [X25]: fix for spinlock recurse and spinlock lockup with timer handler 2006-04-29 18:33:11 -07:00
xfrm [NET]: Fix warnings after LSM-IPSEC changes. 2006-06-17 21:29:49 -07:00
Kconfig [SECMARK]: Add secmark support to core networking. 2006-06-17 21:29:57 -07:00
Makefile [TIPC] Initial merge 2006-01-12 14:06:31 -08:00
TUNABLE Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compat.c [NETFILTER]: iptables 32bit compat layer 2006-04-01 02:25:19 -08:00
nonet.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
socket.c [PATCH] sockaddr patch 2006-05-01 06:06:10 -04:00
sysctl_net.c [NET]: Eliminate unused /proc/sys/net/ethernet 2006-06-05 15:34:11 -07:00