Eric Dumazet 54764bb647 ipv4: Restore old dst_free() behavior. ... commit 404e0a8b6a (net: ipv4: fix RCU races on dst refcounts) tried to solve a race but added a problem at device/fib dismantle time : We really want to call dst_free() as soon as possible, even if sockets still have dst in their cache. dst_release() calls in free_fib_info_rcu() are not welcomed. Root of the problem was that now we also cache output routes (in nh_rth_output), we must use call_rcu() instead of call_rcu_bh() in rt_free(), because output route lookups are done in process context. Based on feedback and initial patch from David Miller (adding another call_rcu_bh() call in fib, but it appears it was not the right fix) I left the inet_sk_rx_dst_set() helper and added __rcu attributes to nh_rth_output and nh_rth_input to better document what is going on in this code. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2012-07-31 14:41:38 -07:00
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acpi	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	2012-07-26 14:28:55 -07:00
asm-generic	Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm	2012-07-27 15:14:26 -07:00
crypto
drm	Merge branch 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next	2012-07-26 10:35:44 +10:00
keys
linux	Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm	2012-07-27 15:14:26 -07:00
math-emu
media
memory
misc
mtd
net	ipv4: Restore old dst_free() behavior.	2012-07-31 14:41:38 -07:00
pcmcia
rdma	Merge branches 'cma', 'cxgb4', 'misc', 'mlx4-sriov', 'mlx-cleanups', 'ocrdma' and 'qib' into for-linus	2012-07-22 23:26:17 -07:00
rxrpc
scsi	Merge branch 'master' [vanilla Linus master] into libata-dev.git/upstream	2012-07-25 15:58:48 -04:00
sound	Merge branch 'topic/pm-convert' into for-next	2012-07-19 08:21:57 +02:00
target	target: Allow for target_submit_cmd() returning errors	2012-07-17 17:05:05 -07:00
trace	Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-07-26 13:17:17 -07:00
video
xen	xen PVonHVM: move shared_info to MMIO before kexec	2012-07-19 15:52:05 -04:00
Kbuild