Julian Anastasov 9e4e948a3e ipvs: avoid rcu_barrier during netns cleanup ... commit 578bc3ef1e ("ipvs: reorganize dest trash") added rcu_barrier() on cleanup to wait dest users and schedulers like LBLC and LBLCR to put their last dest reference. Using rcu_barrier with many namespaces is problematic. Trying to fix it by freeing dest with kfree_rcu is not a solution, RCU callbacks can run in parallel and execution order is random. Fix it by creating new function ip_vs_dest_put_and_free() which is heavier than ip_vs_dest_put(). We will use it just for schedulers like LBLC, LBLCR that can delay their dest release. By default, dests reference is above 0 if they are present in service and it is 0 when deleted but still in trash list. Change the dest trash code to use ip_vs_dest_put_and_free(), so that refcnt -1 can be used for freeing. As result, such checks remain in slow path and the rcu_barrier() from netns cleanup can be removed. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>		2013-10-15 10:36:01 +09:00
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acpi	Merge branch 'acpi-hotplug'	2013-08-30 14:14:25 +02:00
asm-generic	include/asm-generic/vtime.h: avoid zero-length file	2013-09-30 14:31:02 -07:00
clocksource	ARM: SoC cleanups for 3.12	2013-09-06 13:21:16 -07:00
crypto
drm	Revert "drm: mark context support as a legacy subsystem"	2013-09-20 08:32:59 +10:00
dt-bindings	Device tree core updates for v3.12	2013-09-10 13:53:52 -07:00
keys
kvm	ARM: KVM: vgic: Bump VGIC_NR_IRQS to 256	2013-08-30 16:12:39 +03:00
linux	inet: includes a sock_common in request_sock	2013-10-10 00:08:07 -04:00
math-emu
media	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-09-05 14:54:29 -07:00
memory
misc
net	ipvs: avoid rcu_barrier during netns cleanup	2013-10-15 10:36:01 +09:00
pcmcia
ras
rdma	Merge branches 'cxgb4', 'flowsteer', 'ipoib', 'iser', 'mlx4', 'ocrdma' and 'qib' into for-next	2013-09-03 09:01:08 -07:00
rxrpc
scsi	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2013-09-12 16:11:45 -07:00
sound	sound fixes for 3.12-rc1	2013-09-12 08:52:41 -07:00
target	target/iscsi: Bump versions to v4.1.0	2013-09-10 20:23:37 -07:00
trace	Merge branch 'for-3.12/core' of git://git.kernel.dk/linux-block	2013-09-22 15:00:11 -07:00
uapi	ipvs: fix the IPVS_CMD_ATTR_MAX definition	2013-10-15 10:36:01 +09:00
video	fbdev changes for 3.12:	2013-09-05 09:49:32 -07:00
xen	Features:	2013-09-04 17:45:39 -07:00
Kbuild