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Changli Gao ca44ac3861 net: don't reallocate skb->head unless the current one hasn't the needed extra size or is shared 
skb head being allocated by kmalloc(), it might be larger than what
actually requested because of discrete kmem caches sizes. Before
reallocating a new skb head, check if the current one has the needed
extra size.

Do this check only if skb head is not shared.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-03 10:59:47 -08:00
..
9p
net/9p: Return error on read with NULL buffer
2010-10-28 09:08:49 -05:00
802
net/802: add __rcu annotations
2010-10-25 13:09:44 -07:00
8021q
8021q: vlan device is lockless do not transfer real_num_{tx|rx}_queues
2010-11-28 10:47:19 -08:00
appletalk
…
atm
net: use the macros defined for the members of flowi
2010-11-17 12:27:45 -08:00
ax25
net: ax25: fix information leak to userland
2010-11-10 10:14:33 -08:00
bluetooth
Net: bluetooth: Makefile: Remove deprecated kbuild goal definitions
2010-11-22 08:16:08 -08:00
bridge
net: use the macros defined for the members of flowi
2010-11-17 12:27:45 -08:00
caif
Net: caif: Makefile: Remove deprecated items
2010-11-22 08:16:09 -08:00
can
Net: can: Makefile: Remove deprecated kbuild goal definitions
2010-11-22 08:16:09 -08:00
ceph
Net: ceph: Makefile: remove deprecated kbuild goal definitions
2010-11-22 08:16:10 -08:00
core
net: don't reallocate skb->head unless the current one hasn't the needed extra size or is shared
2010-12-03 10:59:47 -08:00
dcb
…
dccp
dccp ccid-2: whitespace fix-up
2010-11-18 09:37:07 -08:00
decnet
net: use the macros defined for the members of flowi
2010-11-17 12:27:45 -08:00
dns_resolver
Net: dns_resolver: Makefile: Remove deprecated kbuild goal definitions
2010-11-22 08:16:10 -08:00
dsa
phylib: available for any speed ethernet
2010-08-11 23:03:50 -07:00
econet
Net: econet: Makefile: Remove deprecated kbuild goal definitions
2010-11-22 08:16:11 -08:00
ethernet
net: return operator cleanup
2010-09-23 14:33:39 -07:00
ieee802154
…
ipv4
tcp: use TCP_BASE_MSS to set basic mss value
2010-12-02 13:27:32 -08:00
ipv6
ipv6: use ND_REACHABLE_TIME and ND_RETRANS_TIMER instead of magic number
2010-12-02 13:27:32 -08:00
ipx
BKL: introduce CONFIG_BKL.
2010-10-21 15:44:13 +02:00
irda
Net: irda: irnet: Makefile: Remove deprecated kbuild goal definitions
2010-11-22 08:16:13 -08:00
iucv
[S390] cleanup lowcore access from external interrupts
2010-10-25 16:10:19 +02:00
key
net: return operator cleanup
2010-09-23 14:33:39 -07:00
l2tp
net: use the macros defined for the members of flowi
2010-11-17 12:27:45 -08:00
lapb
Net: lapb: Makefile: Remove deprecated kbuild goal definitions
2010-11-22 08:16:14 -08:00
llc
net/llc: storing negative error codes in unsigned short
2010-09-16 22:38:23 -07:00
mac80211
mac80211: implement packet loss notification
2010-11-24 16:19:36 -05:00
netfilter
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-11-19 13:13:47 -08:00
netlabel
…
netlink
netlink: fix netlink_change_ngroups()
2010-10-24 16:25:39 -07:00
netrom
…
packet
packet: use vzalloc()
2010-11-21 10:01:42 -08:00
phonet
Net: phonet: Makefile: Remove deprecated kbuild goal definitions
2010-11-22 08:16:14 -08:00
rds
Net: rds: Makefile: Remove deprecated items
2010-11-22 08:16:15 -08:00
rfkill
rfkill: remove dead code
2010-11-15 13:24:06 -05:00
rose
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-09-27 01:03:03 -07:00
rxrpc
Net: rxrpc: Makefile: Remove deprecated kbuild goal definitions
2010-11-22 08:16:15 -08:00
sched
net sched: use xps information for qdisc NUMA affinity
2010-12-01 12:47:42 -08:00
sctp
net: avoid limits overflow
2010-11-10 12:12:00 -08:00
sunrpc
Net: sunrpc: auth_gss: Makefile: Remove deprecated kbuild goal definitions
2010-11-22 08:16:16 -08:00
tipc
tipc: Delete tipc_ownidentity()
2010-12-02 13:34:06 -08:00
unix
af_unix: optimize unix_dgram_poll()
2010-11-08 13:50:09 -08:00
wanrouter
Net: wanrouter: Makefile: Remove deprecated kbuild goal definitions
2010-11-22 08:16:16 -08:00
wimax
…
wireless
cfg80211: allow using CQM event to notify packet loss
2010-11-24 16:19:36 -05:00
x25
X25 remove bkl in call user data length ioctl
2010-11-28 11:12:22 -08:00
xfrm
xfrm: make xfrm_bundle_ok local
2010-10-21 03:09:46 -07:00
compat.c
net: Limit socket I/O iovec total length to INT_MAX.
2010-10-28 11:47:52 -07:00
Kconfig
xps: Add CONFIG_XPS
2010-11-28 18:24:14 -08:00
Makefile
ceph: factor out libceph from Ceph file system
2010-10-20 15:37:28 -07:00
nonet.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
socket.c
net: net_families __rcu annotations
2010-11-12 13:27:25 -08:00
sysctl_net.c
…
TUNABLE
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