#ifndef _ASM_GENERIC_LOCAL_H #define _ASM_GENERIC_LOCAL_H #include #include #include /* * A signed long type for operations which are atomic for a single CPU. * Usually used in combination with per-cpu variables. * * This is the default implementation, which uses atomic_long_t. Which is * rather pointless. The whole point behind local_t is that some processors * can perform atomic adds and subtracts in a manner which is atomic wrt IRQs * running on this CPU. local_t allows exploitation of such capabilities. */ /* Implement in terms of atomics. */ /* Don't use typedef: don't want them to be mixed with atomic_t's. */ typedef struct { atomic_long_t a; } local_t; #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) } #define local_read(l) atomic_long_read(&(l)->a) #define local_set(l,i) atomic_long_set((&(l)->a),(i)) #define local_inc(l) atomic_long_inc(&(l)->a) #define local_dec(l) atomic_long_dec(&(l)->a) #define local_add(i,l) atomic_long_add((i),(&(l)->a)) #define local_sub(i,l) atomic_long_sub((i),(&(l)->a)) #define local_sub_and_test(i, l) atomic_long_sub_and_test((i), (&(l)->a)) #define local_dec_and_test(l) atomic_long_dec_and_test(&(l)->a) #define local_inc_and_test(l) atomic_long_inc_and_test(&(l)->a) #define local_add_negative(i, l) atomic_long_add_negative((i), (&(l)->a)) #define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a)) #define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a)) #define local_inc_return(l) atomic_long_inc_return(&(l)->a) #define local_cmpxchg(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n)) #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n)) #define local_add_unless(l, _a, u) atomic_long_add_unless((&(l)->a), (_a), (u)) #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a) /* Non-atomic variants, ie. preemption disabled and won't be touched * in interrupt, etc. Some archs can optimize this case well. */ #define __local_inc(l) local_set((l), local_read(l) + 1) #define __local_dec(l) local_set((l), local_read(l) - 1) #define __local_add(i,l) local_set((l), local_read(l) + (i)) #define __local_sub(i,l) local_set((l), local_read(l) - (i)) #endif /* _ASM_GENERIC_LOCAL_H */ /include'>
path: root/include
AgeCommit message (Expand)AuthorFilesLines
2017-02-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller11-40/+60
2017-02-03sched: cls_flower: expose priority to offloading netdeviceJiri Pirko1-0/+1
2017-02-03lib: Introduce priority array area managerJiri Pirko1-0/+76
2017-02-03list: introduce list_for_each_entry_from_reverse helperJiri Pirko1-0/+13
2017-02-03trace: rename trace_print_hex_seq arg and add kdocDaniel Borkmann2-3/+3
2017-02-03bridge: uapi: add per vlan tunnel infoRoopa Prabhu3-0/+13
2017-02-03vxlan: support fdb and learning in COLLECT_METADATA modeRoopa Prabhu1-0/+1
2017-02-03ip_tunnels: new IP_TUNNEL_INFO_BRIDGE flag for ip_tunnel_info modeRoopa Prabhu1-0/+1
2017-02-03net/sched: act_ife: Change to use ife moduleYotam Gigi2-10/+1
2017-02-03net: Introduce ife encapsulation moduleYotam Gigi3-0/+70
2017-02-03net/sched: act_ife: Unexport ife_tlv_meta_encodeYotam Gigi1-2/+0
2017-02-03tcp: add tcp_mss_clamp() helperEric Dumazet1-0/+9
2017-02-02net: add LINUX_MIB_PFMEMALLOCDROP counterEric Dumazet1-0/+1
2017-02-02net: phy: marvell: Add support for 88e1545 PHYAndrew Lunn1-0/+1
2017-02-02unix: add ioctl to open a unix socket file with O_PATHAndrey Vagin1-0/+2
2017-02-02net: phy: Marvell: Add mv88e6390 internal PHYAndrew Lunn1-0/+6
2017-02-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller9-30/+40
2017-02-02netfilter: allow logging from non-init namespacesMichal Kubeček1-0/+3
2017-02-02ipvs: free ip_vs_dest structs when refcnt=0David Windsor1-1/+1
2017-02-02netfilter: merge ctinfo into nfct pointer storage areaFlorian Westphal2-17/+15
2017-02-02netfilter: guarantee 8 byte minalign for template addressesFlorian Westphal1-0/+2
2017-02-02netfilter: add and use nf_ct_set helperFlorian Westphal2-2/+9
2017-02-02skbuff: add and use skb_nfct helperFlorian Westphal2-4/+11
2017-02-02netfilter: reduce direct skb->nfct usageFlorian Westphal1-3/+6
2017-02-02netfilter: conntrack: no need to pass ctinfo to error handlerFlorian Westphal1-1/+1