net: Add a flow_cache_flush_deferred function
authorSteffen Klassert <steffen.klassert@secunet.com>
Wed, 21 Dec 2011 21:48:08 +0000 (16:48 -0500)
committerRohan Somvanshi <rsomvanshi@nvidia.com>
Wed, 11 Jan 2012 18:25:00 +0000 (10:25 -0800)
commitb4758165fe80041d797687f58e94b08bfbae3fd4
tree14609844ce2ef7b77ab7361c507e6c9ff8081033
parent70ad9207b3bb735afe9bd3b94bd0fdf99ea91ae4
net: Add a flow_cache_flush_deferred function

[ Upstream commit c0ed1c14a72ca9ebacd51fb94a8aca488b0d361e ]

flow_cach_flush() might sleep but can be called from
atomic context via the xfrm garbage collector. So add
a flow_cache_flush_deferred() function and use this if
the xfrm garbage colector is invoked from within the
packet path.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Change-Id: I6561c4fa576a9e83f4e2faf7b62dbd1d9b598c39
Reviewed-on: http://git-master/r/74221
Reviewed-by: Varun Wadekar <vwadekar@nvidia.com>
Tested-by: Varun Wadekar <vwadekar@nvidia.com>
include/net/flow.h
net/core/flow.c
net/xfrm/xfrm_policy.c