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Tom Herbert 97a6ec4ac0 rhashtable: Change rhashtable_walk_start to return void 
Most callers of rhashtable_walk_start don't care about a resize event
which is indicated by a return value of -EAGAIN. So calls to
rhashtable_walk_start are wrapped wih code to ignore -EAGAIN. Something
like this is common:

       ret = rhashtable_walk_start(rhiter);
       if (ret && ret != -EAGAIN)
               goto out;

Since zero and -EAGAIN are the only possible return values from the
function this check is pointless. The condition never evaluates to true.

This patch changes rhashtable_walk_start to return void. This simplifies
code for the callers that ignore -EAGAIN. For the few cases where the
caller cares about the resize event, particularly where the table can be
walked in mulitple parts for netlink or seq file dump, the function
rhashtable_walk_start_check has been added that returns -EAGAIN on a
resize event.

Signed-off-by: Tom Herbert <tom@quantonium.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-12-11 09:58:38 -05:00
..
ila rhashtable: Change rhashtable_walk_start to return void 2017-12-11 09:58:38 -05:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2017-11-08 14:22:50 +09:00
Kconfig
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Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
addrconf.c rtnetlink: ipv6: convert remaining users to rtnl_register_module 2017-12-04 13:35:36 -05:00
addrconf_core.c net: ipv6: Make inet6addr_validator a blocking notifier 2017-10-20 13:15:07 +01:00
addrlabel.c rtnetlink: ipv6: convert remaining users to rtnl_register_module 2017-12-04 13:35:36 -05:00
af_inet6.c ipv6: Implement limits on Hop-by-Hop and Destination options 2017-11-03 09:50:22 +09:00
ah6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
anycast.c
…
calipso.c
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datagram.c
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esp6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
esp6_offload.c
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exthdrs.c ipv6: Implement limits on Hop-by-Hop and Destination options 2017-11-03 09:50:22 +09:00
exthdrs_core.c
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exthdrs_offload.c
…
fib6_notifier.c
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fib6_rules.c
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fou6.c
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icmp.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
inet6_connection_sock.c
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inet6_hashtables.c inet: Add a 2nd listener hashtable (port+addr) 2017-12-03 10:18:28 -05:00
ip6_checksum.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ip6_fib.c rtnetlink: remove __rtnl_register 2017-12-04 11:32:53 -05:00
ip6_flowlabel.c treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
ip6_gre.c ip6_gre: add ip6 erspan collect_md mode 2017-12-06 14:45:29 -05:00
ip6_icmp.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ip6_input.c
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ip6_offload.c gso: fix payload length when gso_size is zero 2017-10-08 10:12:15 -07:00
ip6_offload.h
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ip6_output.c xfrm: Move dst->path into struct xfrm_dst 2017-11-30 09:54:26 -05:00
ip6_tunnel.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-12-09 22:09:55 -05:00
ip6_udp_tunnel.c
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ip6_vti.c
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ip6mr.c rtnetlink: ipv6: convert remaining users to rtnl_register_module 2017-12-04 13:35:36 -05:00
ipcomp6.c
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ipv6_sockglue.c
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mcast.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
mcast_snoop.c
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mip6.c
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ndisc.c net: ipv6: sysctl to specify IPv6 ND traffic class 2017-11-11 15:13:02 +09:00
netfilter.c
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output_core.c net: accept UFO datagrams from tuntap and packet 2017-11-24 01:37:35 +09:00
ping.c
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proc.c
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protocol.c
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raw.c ipv6: mark expected switch fall-throughs 2017-10-18 14:13:08 +01:00
reassembly.c inet: frags: Convert timers to use timer_setup() 2017-10-18 12:39:55 +01:00
route.c rtnetlink: remove __rtnl_register 2017-12-04 11:32:53 -05:00
seg6.c rhashtable: Change rhashtable_walk_start to return void 2017-12-11 09:58:38 -05:00
seg6_hmac.c
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seg6_iptunnel.c
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seg6_local.c
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sit.c sit: update frag_off info 2017-11-30 10:25:41 -05:00
syncookies.c tcp: Namespace-ify sysctl_tcp_workaround_signed_windows 2017-10-28 19:24:38 +09:00
sysctl_net_ipv6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
tcp_ipv6.c tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb() 2017-12-03 12:39:14 -05:00
tcpv6_offload.c
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tunnel6.c
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udp.c udp: Move udp[46]_portaddr_hash() to net/ip[v6].h 2017-12-03 10:18:28 -05:00
udp_impl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
udp_offload.c net: accept UFO datagrams from tuntap and packet 2017-11-24 01:37:35 +09:00
udplite.c
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xfrm6_input.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfrm6_mode_beet.c
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xfrm6_mode_ro.c
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xfrm6_mode_transport.c
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xfrm6_mode_tunnel.c net: Create and use new helper xfrm_dst_child(). 2017-11-30 09:54:25 -05:00
xfrm6_output.c
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xfrm6_policy.c net: Create and use new helper xfrm_dst_child(). 2017-11-30 09:54:25 -05:00
xfrm6_protocol.c
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xfrm6_state.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xfrm6_tunnel.c xfrm6_tunnel: exit_net cleanup check added 2017-11-14 15:46:17 +09:00