kernel_optimize_test/include
David S. Miller 14deae4156 ipv6: Fix sporadic sendmsg -EINVAL when sending to multicast groups.
Thanks to excellent diagnosis by Eduard Guzovsky.

The core problem is that on a network with lots of active
multicast traffic, the neighbour cache can fill up.  If
we try to allocate a new route and thus neighbour cache
entry, the bog-standard GC attempt the neighbour layer does
in ineffective because route entries hold a reference
to the existing neighbour entries and GC can only liberate
entries with no references.

IPV4 already has a way to handle this, by doing a route cache
GC in such situations (when neigh attach returns -ENOBUFS).

So simply mimick this on the ipv6 side.

Tested-by: Eduard Guzovsky <eguzovsky@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-04 16:04:39 -08:00
..
acpi ACPI: don't cond_resched() when irqs_disabled() 2008-12-19 04:38:33 -05:00
asm-arm
asm-frv
asm-generic Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2008-12-28 12:33:21 -08:00
asm-h8300
asm-m32r
asm-m68k m68k: use the new byteorder headers 2008-12-28 20:00:07 +01:00
asm-mn10300 MN10300: Fix __put_user_asm8() 2008-12-10 13:34:33 -08:00
asm-xtensa
crypto crypto: aes - Precompute tables 2008-12-25 11:05:13 +11:00
drm drm: move drm vblank initialization/cleanup to driver load/unload 2008-11-25 09:49:03 +10:00
keys KEYS: Disperse linux/key_ui.h 2008-11-14 10:39:13 +11:00
linux Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-12-28 16:54:33 -08:00
math-emu
media
mtd
net ipv6: Fix sporadic sendmsg -EINVAL when sending to multicast groups. 2009-01-04 16:04:39 -08:00
pcmcia
rdma
rxrpc
scsi [SCSI] fc_transport: fix old bug on bitflag definitions 2008-11-21 17:30:53 +09:00
sound Merge branch 'topic/udev-id-rename' into to-push 2008-12-25 11:40:34 +01:00
trace sched, trace: update trace_sched_wakeup() 2008-12-25 13:10:21 +01:00
video video: sh_mobile_lcdcfb deferred io support 2008-12-22 18:44:48 +09:00
xen xen: clean up asm/xen/hypervisor.h 2008-12-16 21:50:31 +01:00
Kbuild