/* * Generic implementation of 64-bit atomics using spinlocks, * useful on processors that don't have 64-bit atomic instructions. * * Copyright © 2009 Paul Mackerras, IBM Corp. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #ifndef _ASM_GENERIC_ATOMIC64_H #define _ASM_GENERIC_ATOMIC64_H typedef struct { long long counter; } atomic64_t; #define ATOMIC64_INIT(i) { (i) } extern long long atomic64_read(const atomic64_t *v); extern void atomic64_set(atomic64_t *v, long long i); #define ATOMIC64_OP(op) \ extern void atomic64_##op(long long a, atomic64_t *v); #define ATOMIC64_OP_RETURN(op) \ extern long long atomic64_##op##_return(long long a, atomic64_t *v); #define ATOMIC64_FETCH_OP(op) \ extern long long atomic64_fetch_##op(long long a, atomic64_t *v); #define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op) ATOMIC64_FETCH_OP(op) ATOMIC64_OPS(add) ATOMIC64_OPS(sub) #undef ATOMIC64_OPS #define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_FETCH_OP(op) ATOMIC64_OPS(and) ATOMIC64_OPS(or) ATOMIC64_OPS(xor) #undef ATOMIC64_OPS #undef ATOMIC64_FETCH_OP #undef ATOMIC64_OP_RETURN #undef ATOMIC64_OP extern long long atomic64_dec_if_positive(atomic64_t *v); extern long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n); extern long long atomic64_xchg(atomic64_t *v, long long new); extern int atomic64_add_unless(atomic64_t *v, long long a, long long u); #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0) #define atomic64_inc(v) atomic64_add(1LL, (v)) #define atomic64_inc_return(v) atomic64_add_return(1LL, (v)) #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0) #define atomic64_sub_and_test(a, v) (atomic64_sub_return((a), (v)) == 0) #define atomic64_dec(v) atomic64_sub(1LL, (v)) #define atomic64_dec_return(v) atomic64_sub_return(1LL, (v)) #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0) #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL) #endif /* _ASM_GENERIC_ATOMIC64_H */ '>author
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AgeCommit message (Expand)AuthorFilesLines
2017-02-09openvswitch: Add force commit.Jarno Rajahalme1-0/+5
2017-02-09openvswitch: Add original direction conntrack tuple to sw_flow_key.Jarno Rajahalme1-1/+19
2017-02-09openvswitch: Unionize ovs_key_ct_label with a u32 array.Jarno Rajahalme1-2/+6
2017-02-09sctp: implement sender-side procedures for Add Incoming/Outgoing Streams Requ...Xin Long2-0/+9
2017-02-09sctp: add support for generating stream reconf add incoming/outgoing streams ...Xin Long2-0/+10
2017-02-09sctp: implement sender-side procedures for SSN/TSN Reset Request ParameterXin Long2-0/+2
2017-02-09sctp: add support for generating stream reconf ssn/tsn reset request chunkXin Long2-0/+7
2017-02-09sctp: drop unnecessary __packed from some stream reconf structuresXin Long1-3/+3
2017-02-08ipv4: fib: Notify about nexthop status changesIdo Schimmel1-0/+7
2017-02-08net: stmmac: Remove the bus_setup function pointerLABBE Corentin1-1/+0
2017-02-08gro_cells: move to net/core/gro_cells.cEric Dumazet1-82/+4
2017-02-08net: phy: Add LED mode driver for Microsemi PHYs.Raju Lakkaraju