/* -*- linux-c -*- * sysctl_net_x25.c: sysctl interface to net X.25 subsystem. * * Begun April 1, 1996, Mike Shaver. * Added /proc/sys/net/x25 directory entry (empty =) ). [MS] */ #include #include #include #include #include #include static int min_timer[] = { 1 * HZ }; static int max_timer[] = { 300 * HZ }; static struct ctl_table_header *x25_table_header; static struct ctl_table x25_table[] = { { .procname = "restart_request_timeout", .data = &sysctl_x25_restart_request_timeout, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_timer, .extra2 = &max_timer, }, { .procname = "call_request_timeout", .data = &sysctl_x25_call_request_timeout, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_timer, .extra2 = &max_timer, }, { .procname = "reset_request_timeout", .data = &sysctl_x25_reset_request_timeout, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_timer, .extra2 = &max_timer, }, { .procname = "clear_request_timeout", .data = &sysctl_x25_clear_request_timeout, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_timer, .extra2 = &max_timer, }, { .procname = "acknowledgement_hold_back_timeout", .data = &sysctl_x25_ack_holdback_timeout, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_timer, .extra2 = &max_timer, }, { .procname = "x25_forward", .data = &sysctl_x25_forward, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec, }, { }, }; void __init x25_register_sysctl(void) { x25_table_header = register_net_sysctl(&init_net, "net/x25", x25_table); } void x25_unregister_sysctl(void) { unregister_net_sysctl_table(x25_table_header); } /diff/net/ipx?id=f63cf464fc379382a271f94ddef36e8c5a0628eb'>diff
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authorDexuan Cui <decui@microsoft.com>2017-01-28 11:46:02 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-31 10:59:48 +0100
commit433e19cf33d34bb6751c874a9c00980552fe508c (patch)
treece6547ef2987fbb289fa28f03536328a42781651 /include/net/udp_tunnel.h
parent191e885a2e130e639bb0c8ee350d7047294f2ce6 (diff)
Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") added the proper mb(), but removed the test "prev_write_sz < pending_sz" when making the signal decision. As a result, the guest can signal the host unnecessarily, and then the host can throttle the guest because the host thinks the guest is buggy or malicious; finally the user running stress test can perceive intermittent freeze of the guest. This patch brings back the test, and properly handles the in-place consumption APIs used by NetVSC (see get_next_pkt_raw(), put_pkt_raw() and commit_rd_index()). Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: <stable@vger.kernel.org> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/udp_tunnel.h')