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net: snmp: kill STATS_BH macros

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There is nothing related to BH in SNMP counters anymore,
since linux-3.0.

Rename helpers to use __ prefix instead of _BH prefix,
for contexts where preemption is disabled.

This more closely matches convention used to update
percpu variables.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2016-04-27 16:44:43 -07:00 committed by David S. Miller
parent f3832ed2c2
commit 13415e46c5
8 changed files with 45 additions and 45 deletions
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2
include/net/icmp.h
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@ -30,7 +30,7 @@ struct icmp_err {
extern const struct icmp_err icmp_err_convert[];
#define ICMP_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.icmp_statistics, field)
#define __ICMP_INC_STATS(net, field) SNMP_INC_STATS_BH((net)->mib.icmp_statistics, field)
#define __ICMP_INC_STATS(net, field) __SNMP_INC_STATS((net)->mib.icmp_statistics, field)
#define ICMPMSGOUT_INC_STATS(net, field) SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field+256)
#define ICMPMSGIN_INC_STATS(net, field) SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field)

10
include/net/ip.h
View File

@ -187,15 +187,15 @@ void ip_send_unicast_reply(struct sock *sk, struct sk_buff *skb,
unsigned int len);
#define IP_INC_STATS(net, field) SNMP_INC_STATS64((net)->mib.ip_statistics, field)
#define __IP_INC_STATS(net, field) SNMP_INC_STATS64_BH((net)->mib.ip_statistics, field)
#define __IP_INC_STATS(net, field) __SNMP_INC_STATS64((net)->mib.ip_statistics, field)
#define IP_ADD_STATS(net, field, val) SNMP_ADD_STATS64((net)->mib.ip_statistics, field, val)
#define __IP_ADD_STATS(net, field, val) SNMP_ADD_STATS64_BH((net)->mib.ip_statistics, field, val)
#define __IP_ADD_STATS(net, field, val) __SNMP_ADD_STATS64((net)->mib.ip_statistics, field, val)
#define IP_UPD_PO_STATS(net, field, val) SNMP_UPD_PO_STATS64((net)->mib.ip_statistics, field, val)
#define __IP_UPD_PO_STATS(net, field, val) SNMP_UPD_PO_STATS64_BH((net)->mib.ip_statistics, field, val)
#define __IP_UPD_PO_STATS(net, field, val) __SNMP_UPD_PO_STATS64((net)->mib.ip_statistics, field, val)
#define NET_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.net_statistics, field)
#define __NET_INC_STATS(net, field) SNMP_INC_STATS_BH((net)->mib.net_statistics, field)
#define __NET_INC_STATS(net, field) __SNMP_INC_STATS((net)->mib.net_statistics, field)
#define NET_ADD_STATS(net, field, adnd) SNMP_ADD_STATS((net)->mib.net_statistics, field, adnd)
#define __NET_ADD_STATS(net, field, adnd) SNMP_ADD_STATS_BH((net)->mib.net_statistics, field, adnd)
#define __NET_ADD_STATS(net, field, adnd) __SNMP_ADD_STATS((net)->mib.net_statistics, field, adnd)
u64 snmp_get_cpu_field(void __percpu *mib, int cpu, int offct);
unsigned long snmp_fold_field(void __percpu *mib, int offt);

36
include/net/ipv6.h
View File

@ -121,21 +121,21 @@ struct frag_hdr {
extern int sysctl_mld_max_msf;
extern int sysctl_mld_qrv;
#define _DEVINC(net, statname, modifier, idev, field) \
#define _DEVINC(net, statname, mod, idev, field) \
({ \
struct inet6_dev *_idev = (idev); \
if (likely(_idev != NULL)) \
SNMP_INC_STATS##modifier((_idev)->stats.statname, (field)); \
SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\
mod##SNMP_INC_STATS64((_idev)->stats.statname, (field));\
mod##SNMP_INC_STATS64((net)->mib.statname##_statistics, (field));\
})
/* per device counters are atomic_long_t */
#define _DEVINCATOMIC(net, statname, modifier, idev, field) \
#define _DEVINCATOMIC(net, statname, mod, idev, field) \
({ \
struct inet6_dev *_idev = (idev); \
if (likely(_idev != NULL)) \
SNMP_INC_STATS_ATOMIC_LONG((_idev)->stats.statname##dev, (field)); \
SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\
mod##SNMP_INC_STATS((net)->mib.statname##_statistics, (field));\
})
/* per device and per net counters are atomic_long_t */
@ -147,40 +147,40 @@ extern int sysctl_mld_qrv;
SNMP_INC_STATS_ATOMIC_LONG((net)->mib.statname##_statistics, (field));\
})
#define _DEVADD(net, statname, modifier, idev, field, val) \
#define _DEVADD(net, statname, mod, idev, field, val) \
({ \
struct inet6_dev *_idev = (idev); \
if (likely(_idev != NULL)) \
SNMP_ADD_STATS##modifier((_idev)->stats.statname, (field), (val)); \
SNMP_ADD_STATS##modifier((net)->mib.statname##_statistics, (field), (val));\
mod##SNMP_ADD_STATS((_idev)->stats.statname, (field), (val)); \
mod##SNMP_ADD_STATS((net)->mib.statname##_statistics, (field), (val));\
})
#define _DEVUPD(net, statname, modifier, idev, field, val) \
#define _DEVUPD(net, statname, mod, idev, field, val) \
({ \
struct inet6_dev *_idev = (idev); \
if (likely(_idev != NULL)) \
SNMP_UPD_PO_STATS##modifier((_idev)->stats.statname, field, (val)); \
SNMP_UPD_PO_STATS##modifier((net)->mib.statname##_statistics, field, (val));\
mod##SNMP_UPD_PO_STATS((_idev)->stats.statname, field, (val)); \
mod##SNMP_UPD_PO_STATS((net)->mib.statname##_statistics, field, (val));\
})
/* MIBs */
#define IP6_INC_STATS(net, idev,field) \
_DEVINC(net, ipv6, 64, idev, field)
_DEVINC(net, ipv6, , idev, field)
#define __IP6_INC_STATS(net, idev,field) \
_DEVINC(net, ipv6, 64_BH, idev, field)
_DEVINC(net, ipv6, __, idev, field)
#define IP6_ADD_STATS(net, idev,field,val) \
_DEVADD(net, ipv6, 64, idev, field, val)
_DEVADD(net, ipv6, , idev, field, val)
#define __IP6_ADD_STATS(net, idev,field,val) \
_DEVADD(net, ipv6, 64_BH, idev, field, val)
_DEVADD(net, ipv6, __, idev, field, val)
#define IP6_UPD_PO_STATS(net, idev,field,val) \
_DEVUPD(net, ipv6, 64, idev, field, val)
_DEVUPD(net, ipv6, , idev, field, val)
#define __IP6_UPD_PO_STATS(net, idev,field,val) \
_DEVUPD(net, ipv6, 64_BH, idev, field, val)
_DEVUPD(net, ipv6, __, idev, field, val)
#define ICMP6_INC_STATS(net, idev, field) \
_DEVINCATOMIC(net, icmpv6, , idev, field)
#define __ICMP6_INC_STATS(net, idev, field) \
_DEVINCATOMIC(net, icmpv6, _BH, idev, field)
_DEVINCATOMIC(net, icmpv6, __, idev, field)
#define ICMP6MSGOUT_INC_STATS(net, idev, field) \
_DEVINC_ATOMIC_ATOMIC(net, icmpv6msg, idev, field +256)

6
include/net/sctp/sctp.h
View File

@ -205,9 +205,9 @@ extern int sysctl_sctp_wmem[3];
*/
/* SCTP SNMP MIB stats handlers */
#define SCTP_INC_STATS(net, field) SNMP_INC_STATS((net)->sctp.sctp_statistics, field)
#define __SCTP_INC_STATS(net, field) SNMP_INC_STATS_BH((net)->sctp.sctp_statistics, field)
#define SCTP_DEC_STATS(net, field) SNMP_DEC_STATS((net)->sctp.sctp_statistics, field)
#define SCTP_INC_STATS(net, field) SNMP_INC_STATS((net)->sctp.sctp_statistics, field)
#define __SCTP_INC_STATS(net, field) __SNMP_INC_STATS((net)->sctp.sctp_statistics, field)
#define SCTP_DEC_STATS(net, field) SNMP_DEC_STATS((net)->sctp.sctp_statistics, field)
/* sctp mib definitions */
enum {

24
include/net/snmp.h
View File

@ -123,7 +123,7 @@ struct linux_xfrm_mib {
#define DECLARE_SNMP_STAT(type, name) \
extern __typeof__(type) __percpu *name
#define SNMP_INC_STATS_BH(mib, field) \
#define __SNMP_INC_STATS(mib, field) \
__this_cpu_inc(mib->mibs[field])
#define SNMP_INC_STATS_ATOMIC_LONG(mib, field) \
@ -135,7 +135,7 @@ struct linux_xfrm_mib {
#define SNMP_DEC_STATS(mib, field) \
this_cpu_dec(mib->mibs[field])
#define SNMP_ADD_STATS_BH(mib, field, addend) \
#define __SNMP_ADD_STATS(mib, field, addend) \
__this_cpu_add(mib->mibs[field], addend)
#define SNMP_ADD_STATS(mib, field, addend) \
@ -146,7 +146,7 @@ struct linux_xfrm_mib {
this_cpu_inc(ptr[basefield##PKTS]); \
this_cpu_add(ptr[basefield##OCTETS], addend); \
} while (0)
#define SNMP_UPD_PO_STATS_BH(mib, basefield, addend) \
#define __SNMP_UPD_PO_STATS(mib, basefield, addend) \
do { \
__typeof__((mib->mibs) + 0) ptr = mib->mibs; \
__this_cpu_inc(ptr[basefield##PKTS]); \
@ -156,7 +156,7 @@ struct linux_xfrm_mib {
#if BITS_PER_LONG==32
#define SNMP_ADD_STATS64_BH(mib, field, addend) \
#define __SNMP_ADD_STATS64(mib, field, addend) \
do { \
__typeof__(*mib) *ptr = raw_cpu_ptr(mib); \
u64_stats_update_begin(&ptr->syncp); \
@ -164,16 +164,16 @@ struct linux_xfrm_mib {
u64_stats_update_end(&ptr->syncp); \
} while (0)
#define SNMP_ADD_STATS64(mib, field, addend) \
#define SNMP_ADD_STATS64(mib, field, addend) \
do { \
preempt_disable(); \
SNMP_ADD_STATS64_BH(mib, field, addend); \
__SNMP_ADD_STATS64(mib, field, addend); \
preempt_enable(); \
} while (0)
#define SNMP_INC_STATS64_BH(mib, field) SNMP_ADD_STATS64_BH(mib, field, 1)
#define __SNMP_INC_STATS64(mib, field) SNMP_ADD_STATS64(mib, field, 1)
#define SNMP_INC_STATS64(mib, field) SNMP_ADD_STATS64(mib, field, 1)
#define SNMP_UPD_PO_STATS64_BH(mib, basefield, addend) \
#define __SNMP_UPD_PO_STATS64(mib, basefield, addend) \
do { \
__typeof__(*mib) *ptr; \
ptr = raw_cpu_ptr((mib)); \
@ -185,17 +185,17 @@ struct linux_xfrm_mib {
#define SNMP_UPD_PO_STATS64(mib, basefield, addend) \
do { \
preempt_disable(); \
SNMP_UPD_PO_STATS64_BH(mib, basefield, addend); \
__SNMP_UPD_PO_STATS64(mib, basefield, addend); \
preempt_enable(); \
} while (0)
#else
#define SNMP_INC_STATS64_BH(mib, field) SNMP_INC_STATS_BH(mib, field)
#define __SNMP_INC_STATS64(mib, field) __SNMP_INC_STATS(mib, field)
#define SNMP_INC_STATS64(mib, field) SNMP_INC_STATS(mib, field)
#define SNMP_DEC_STATS64(mib, field) SNMP_DEC_STATS(mib, field)
#define SNMP_ADD_STATS64_BH(mib, field, addend) SNMP_ADD_STATS_BH(mib, field, addend)
#define __SNMP_ADD_STATS64(mib, field, addend) __SNMP_ADD_STATS(mib, field, addend)
#define SNMP_ADD_STATS64(mib, field, addend) SNMP_ADD_STATS(mib, field, addend)
#define SNMP_UPD_PO_STATS64(mib, basefield, addend) SNMP_UPD_PO_STATS(mib, basefield, addend)
#define SNMP_UPD_PO_STATS64_BH(mib, basefield, addend) SNMP_UPD_PO_STATS_BH(mib, basefield, addend)
#define __SNMP_UPD_PO_STATS64(mib, basefield, addend) __SNMP_UPD_PO_STATS(mib, basefield, addend)
#endif
#endif

2
include/net/tcp.h
View File

@ -332,7 +332,7 @@ bool tcp_check_oom(struct sock *sk, int shift);
extern struct proto tcp_prot;
#define TCP_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.tcp_statistics, field)
#define __TCP_INC_STATS(net, field) SNMP_INC_STATS_BH((net)->mib.tcp_statistics, field)
#define __TCP_INC_STATS(net, field) __SNMP_INC_STATS((net)->mib.tcp_statistics, field)
#define TCP_DEC_STATS(net, field) SNMP_DEC_STATS((net)->mib.tcp_statistics, field)
#define TCP_ADD_STATS(net, field, val) SNMP_ADD_STATS((net)->mib.tcp_statistics, field, val)

8
include/net/udp.h
View File

@ -293,12 +293,12 @@ struct sock *udp6_lib_lookup_skb(struct sk_buff *skb,
if (is_udplite) SNMP_INC_STATS((net)->mib.udplite_statistics, field); \
else SNMP_INC_STATS((net)->mib.udp_statistics, field); } while(0)
#define __UDP_INC_STATS(net, field, is_udplite) do { \
if (is_udplite) SNMP_INC_STATS_BH((net)->mib.udplite_statistics, field); \
else SNMP_INC_STATS_BH((net)->mib.udp_statistics, field); } while(0)
if (is_udplite) __SNMP_INC_STATS((net)->mib.udplite_statistics, field); \
else __SNMP_INC_STATS((net)->mib.udp_statistics, field); } while(0)
#define __UDP6_INC_STATS(net, field, is_udplite) do { \
if (is_udplite) SNMP_INC_STATS_BH((net)->mib.udplite_stats_in6, field);\
else SNMP_INC_STATS_BH((net)->mib.udp_stats_in6, field); \
if (is_udplite) __SNMP_INC_STATS((net)->mib.udplite_stats_in6, field);\
else __SNMP_INC_STATS((net)->mib.udp_stats_in6, field); \
} while(0)
#define UDP6_INC_STATS(net, field, __lite) do { \
if (__lite) SNMP_INC_STATS((net)->mib.udplite_stats_in6, field); \

2
net/dccp/dccp.h
View File

@ -199,7 +199,7 @@ struct dccp_mib {
DECLARE_SNMP_STAT(struct dccp_mib, dccp_statistics);
#define DCCP_INC_STATS(field) SNMP_INC_STATS(dccp_statistics, field)
#define __DCCP_INC_STATS(field) SNMP_INC_STATS_BH(dccp_statistics, field)
#define __DCCP_INC_STATS(field) __SNMP_INC_STATS(dccp_statistics, field)
#define DCCP_DEC_STATS(field) SNMP_DEC_STATS(dccp_statistics, field)
/*