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3324412587
linux/net
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Chris Mason 3324412587 RDS/IB: Add caching of frags and incs 
This patch is based heavily on an initial patch by Chris Mason.
Instead of freeing slab memory and pages, it keeps them, and
funnels them back to be reused.

The lock minimization strategy uses xchg and cmpxchg atomic ops
for manipulation of pointers to list heads. We anchor the lists with a
pointer to a list_head struct instead of a static list_head struct.
We just have to carefully use the existing primitives with
the difference between a pointer and a static head struct.

For example, 'list_empty()' means that our anchor pointer points to a list with
a single item instead of meaning that our static head element doesn't point to
any list items.

Original patch by Chris, with significant mods and fixes by Andy and Zach.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: Zach Brown <zach.brown@oracle.com>
2010-09-08 18:15:23 -07:00
..
9p net/9p/trans_fd.c: Fix unsigned return type 2010-09-06 18:48:42 -07:00
802 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-04-11 14:53:53 -07:00
8021q vlan: Use vlan_dev_real_dev in vlan_hwaccel_do_receive 2010-08-31 13:37:05 -07:00
appletalk Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-04-11 14:53:53 -07:00
atm atm: remove a net_device_stats clear 2010-08-19 00:14:36 -07:00
ax25 net/ax25: Use available error codes 2010-08-18 14:26:31 -07:00
bluetooth net: poll() optimizations 2010-09-06 18:48:45 -07:00
bridge bridge: avoid ethtool on non running interface 2010-08-25 16:36:51 -07:00
caif net/caifcaif_dev.c: Use netdev_<level> 2010-09-06 18:48:43 -07:00
can net: simplify flags for tx timestamping 2010-08-19 00:08:30 -07:00
core net: poll() optimizations 2010-09-06 18:48:45 -07:00
dcb include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dccp dccp ccid-3: use per-route RTO or TCP RTO as fallback 2010-08-30 13:45:28 -07:00
decnet net/decnet: Adjust confusing if indentation 2010-08-16 21:06:30 -07:00
dns_resolver DNS: If the DNS server returns an error, allow that to be cached [ver #2] 2010-08-11 17:11:28 +00:00
dsa phylib: available for any speed ethernet 2010-08-11 23:03:50 -07:00
econet econet: kill unnecessary spin_lock_init() 2010-08-28 15:37:03 -07:00
ethernet net: use scnprintf() to avoid potential buffer overflow 2010-08-26 14:11:49 -07:00
ieee802154 ieee802154: Fix possible NULL pointer dereference in wpan_phy_alloc 2010-05-23 23:11:07 -07:00
ipv4 net: arp: code cleanup 2010-09-02 10:12:06 -07:00
ipv6 ipv6: add special mode forwarding=2 to send RS while configured as router 2010-09-03 09:43:14 -07:00
ipx include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
irda irda: use net_device_stats from struct net_device 2010-08-21 23:32:31 -07:00
iucv net: use __packed annotation 2010-06-03 03:21:52 -07:00
key pfkey: add severity to printk 2010-05-17 23:23:13 -07:00
l2tp net: another last_rx round 2010-09-02 09:19:32 -07:00
lapb include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
llc Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-05-12 00:05:35 -07:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2010-09-02 13:30:07 -04:00
netfilter ipvs: use pkts for SCTP too 2010-09-02 10:04:18 -07:00
netlabel net: Remove unnecessary returns from void function()s 2010-05-17 23:23:14 -07:00
netlink netlink: fix compat recvmsg 2010-08-18 23:35:58 -07:00
netrom net: sk_sleep() helper 2010-04-20 16:37:13 -07:00
packet net: simplify flags for tx timestamping 2010-08-19 00:08:30 -07:00
phonet Phonet: do not set POLLOUT in case of send buffer overflow 2010-08-31 13:04:33 -07:00
rds RDS/IB: Add caching of frags and incs 2010-09-08 18:15:23 -07:00
rfkill Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-04-11 14:53:53 -07:00
rose net/rose: Use GFP_ATOMIC 2010-08-01 00:32:12 -07:00
rxrpc Add a dummy printk function for the maintenance of unused printks 2010-08-12 09:51:35 -07:00
sched tc: add meta match on receive hash 2010-08-24 14:48:10 -07:00
sctp net: poll() optimizations 2010-09-06 18:48:45 -07:00
sunrpc nfs: update for module_param_named API change 2010-08-11 23:04:15 +09:30
tipc tipc: Fix misleading error code when enabling Ethernet bearers 2010-09-06 18:12:57 -07:00
unix net: poll() optimizations 2010-09-06 18:48:45 -07:00
wanrouter net: autoconvert trivial BKL users to private mutex 2010-07-12 20:21:47 -07:00
wimax Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
wireless net/wireless: Remove double test 2010-08-31 14:20:40 -04:00
x25 X25: Remove bkl in sockopts 2010-05-17 17:39:28 -07:00
xfrm xfrm: Use GFP_ATOMIC in xfrm_compile_policy 2010-08-14 22:38:09 -07:00
compat.c From abbffa2aa9bd6f8df16d0d0a102af677510d8b9a Mon Sep 17 00:00:00 2001 2010-06-03 20:03:40 -07:00
Kconfig DNS: Separate out CIFS DNS Resolver code 2010-08-05 17:17:51 +00:00
Makefile DNS: Separate out CIFS DNS Resolver code 2010-08-05 17:17:51 +00:00
nonet.c
socket.c net: simplify flags for tx timestamping 2010-08-19 00:08:30 -07:00
sysctl_net.c net: Remove unnecessary returns from void function()s 2010-05-17 23:23:14 -07:00
TUNABLE