From 698365fa1874aa7635d51667a34a2842228e9837 Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Mon, 5 May 2014 15:55:55 -0700 Subject: net: clean up snmp stats code commit 8f0ea0fe3a036a47767f9c80e (snmp: reduce percpu needs by 50%) reduced snmp array size to 1, so technically it doesn't have to be an array any more. What's more, after the following commit: commit 933393f58fef9963eac61db8093689544e29a600 Date: Thu Dec 22 11:58:51 2011 -0600 percpu: Remove irqsafe_cpu_xxx variants We simply say that regular this_cpu use must be safe regardless of preemption and interrupt state. That has no material change for x86 and s390 implementations of this_cpu operations. However, arches that do not provide their own implementation for this_cpu operations will now get code generated that disables interrupts instead of preemption. probably no arch wants to have SNMP_ARRAY_SZ == 2. At least after almost 3 years, no one complains. So, just convert the array to a single pointer and remove snmp_mib_init() and snmp_mib_free() as well. Cc: Christoph Lameter Cc: Eric Dumazet Cc: David S. Miller Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/sctp/protocol.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'net/sctp/protocol.c') diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index c09757fbf803..074b60e2faab 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -1100,14 +1100,15 @@ int sctp_register_pf(struct sctp_pf *pf, sa_family_t family) static inline int init_sctp_mibs(struct net *net) { - return snmp_mib_init((void __percpu **)net->sctp.sctp_statistics, - sizeof(struct sctp_mib), - __alignof__(struct sctp_mib)); + net->sctp.sctp_statistics = alloc_percpu(struct sctp_mib); + if (!net->sctp.sctp_statistics) + return -ENOMEM; + return 0; } static inline void cleanup_sctp_mibs(struct net *net) { - snmp_mib_free((void __percpu **)net->sctp.sctp_statistics); + free_percpu(net->sctp.sctp_statistics); } static void sctp_v4_pf_init(void) -- cgit v1.2.3