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Wu Fengguang aa1330766c tcp: replace hard coded GFP_KERNEL with sk_allocation 
This fixed a lockdep warning which appeared when doing stress
memory tests over NFS:

	inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage.

	page reclaim => nfs_writepage => tcp_sendmsg => lock sk_lock

	mount_root => nfs_root_data => tcp_close => lock sk_lock =>
			tcp_send_fin => alloc_skb_fclone => page reclaim

David raised a concern that if the allocation fails in tcp_send_fin(), and it's
GFP_ATOMIC, we are going to yield() (which sleeps) and loop endlessly waiting
for the allocation to succeed.

But fact is, the original GFP_KERNEL also sleeps. GFP_ATOMIC+yield() looks
weird, but it is no worse the implicit sleep inside GFP_KERNEL. Both could
loop endlessly under memory pressure.

CC: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
CC: David S. Miller <davem@davemloft.net>
CC: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2009-09-02 23:45:45 -07:00
..
9p 9p: Possible regression in p9_client_stat 2009-07-14 15:54:41 -05:00
802
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8021q vlan: multiqueue vlan device 2009-09-02 18:03:00 -07:00
appletalk Use correct NET_RX_* returns for atalk_rcv() 2009-08-12 20:44:50 -07:00
atm net: make neigh_ops constant 2009-09-01 17:40:57 -07:00
ax25 net: Move rx skb_orphan call to where needed 2009-06-23 16:36:25 -07:00
bluetooth netdev: convert pseudo-devices to netdev_tx_t 2009-09-01 01:13:07 -07:00
bridge netdev: convert pseudo-devices to netdev_tx_t 2009-09-01 01:13:07 -07:00
can can: use correct NET_RX_ return values 2009-08-30 22:13:18 -07:00
core net/ethtool: Add support for the ethtool feature to flash firmware image from a specified file. 2009-09-02 23:07:39 -07:00
dcb dcbnl: Add implementations of dcbnl setapp/getapp commands 2009-09-01 01:24:36 -07:00
dccp inet: inet_connection_sock_af_ops const 2009-09-02 01:03:49 -07:00
decnet net: make neigh_ops constant 2009-09-01 17:40:57 -07:00
dsa netdev: convert pseudo-devices to netdev_tx_t 2009-09-01 01:13:07 -07:00
econet Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-08-12 17:44:53 -07:00
ethernet
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ieee802154 Drop ARPHRD_IEEE802154_PHY 2009-08-19 23:08:24 +04:00
ipv4 tcp: replace hard coded GFP_KERNEL with sk_allocation 2009-09-02 23:45:45 -07:00
ipv6 tcp: replace hard coded GFP_KERNEL with sk_allocation 2009-09-02 23:45:45 -07:00
ipx headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
irda net: file_operations should be const 2009-09-02 01:03:53 -07:00
iucv net: adding memory barrier to the poll and receive callbacks 2009-07-09 17:06:57 -07:00
key net: file_operations should be const 2009-09-02 01:03:53 -07:00
lapb net: remove NET_RX_BAD and NET_RX_CN* defines 2009-07-05 19:15:35 -07:00
llc Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-09-02 00:32:56 -07:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2009-09-02 14:18:09 -07:00
netfilter Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-09-02 00:32:56 -07:00
netlabel Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-07-30 19:22:43 -07:00
netlink net/compat/wext: send different messages to compat tasks 2009-07-15 08:53:39 -07:00
netrom Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-09-02 00:32:56 -07:00
packet af_packet: style cleanups 2009-07-23 18:01:10 -07:00
phonet netdev: convert pseudo drivers to netdev_tx_t 2009-09-01 01:13:40 -07:00
rds RDS: Add a debug message suggesting to load transport modules 2009-08-23 19:13:14 -07:00
rfkill rfkill: add the GPS radio type 2009-08-04 16:44:23 -04:00
rose convert hamradio drivers to netdev_txreturnt_t 2009-09-01 01:13:12 -07:00
rxrpc net: mark read-only arrays as const 2009-08-05 10:42:58 -07:00
sched Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-09-02 00:32:56 -07:00
sctp Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-08-12 17:44:53 -07:00
sunrpc headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
tipc tipc: fix test of bearer_priority range in tipc_register_media() 2009-08-29 00:19:42 -07:00
unix net: adding memory barrier to the poll and receive callbacks 2009-07-09 17:06:57 -07:00
wanrouter headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
wimax wimax: fix warning caused by not checking retval of rfkill_set_hw_state() 2009-06-11 11:12:48 -07:00
wireless cfg80211: fix looping soft lockup in find_ie() 2009-09-02 15:29:04 -04:00
x25 headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
xfrm net: file_operations should be const 2009-09-02 01:03:53 -07:00
Kconfig net/compat/wext: send different messages to compat tasks 2009-07-15 08:53:39 -07:00
Makefile net: remove redundant sched/ in net/Makefile 2009-07-12 20:11:14 -07:00
TUNABLE
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compat.c net/compat/wext: send different messages to compat tasks 2009-07-15 08:53:39 -07:00
nonet.c
…
socket.c
…
sysctl_net.c
…