diff options
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 40 |
1 files changed, 35 insertions, 5 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index dcde2d9268cd..a6ba1f8871fd 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -56,6 +56,8 @@ #include <linux/memcontrol.h> #include <linux/res_counter.h> #include <linux/static_key.h> +#include <linux/aio.h> +#include <linux/sched.h> #include <linux/filter.h> #include <linux/rculist_nulls.h> @@ -69,7 +71,7 @@ struct cgroup; struct cgroup_subsys; #ifdef CONFIG_NET int mem_cgroup_sockets_init(struct cgroup *cgrp, struct cgroup_subsys *ss); -void mem_cgroup_sockets_destroy(struct cgroup *cgrp, struct cgroup_subsys *ss); +void mem_cgroup_sockets_destroy(struct cgroup *cgrp); #else static inline int mem_cgroup_sockets_init(struct cgroup *cgrp, struct cgroup_subsys *ss) @@ -77,7 +79,7 @@ int mem_cgroup_sockets_init(struct cgroup *cgrp, struct cgroup_subsys *ss) return 0; } static inline -void mem_cgroup_sockets_destroy(struct cgroup *cgrp, struct cgroup_subsys *ss) +void mem_cgroup_sockets_destroy(struct cgroup *cgrp) { } #endif @@ -357,6 +359,7 @@ struct sock { struct page *sk_sndmsg_page; struct sk_buff *sk_send_head; __u32 sk_sndmsg_off; + __s32 sk_peek_off; int sk_write_pending; #ifdef CONFIG_SECURITY void *sk_security; @@ -373,6 +376,30 @@ struct sock { void (*sk_destruct)(struct sock *sk); }; +static inline int sk_peek_offset(struct sock *sk, int flags) +{ + if ((flags & MSG_PEEK) && (sk->sk_peek_off >= 0)) + return sk->sk_peek_off; + else + return 0; +} + +static inline void sk_peek_offset_bwd(struct sock *sk, int val) +{ + if (sk->sk_peek_off >= 0) { + if (sk->sk_peek_off >= val) + sk->sk_peek_off -= val; + else + sk->sk_peek_off = 0; + } +} + +static inline void sk_peek_offset_fwd(struct sock *sk, int val) +{ + if (sk->sk_peek_off >= 0) + sk->sk_peek_off += val; +} + /* * Hashed lists helper routines */ @@ -590,6 +617,10 @@ enum sock_flags { SOCK_RXQ_OVFL, SOCK_ZEROCOPY, /* buffers from userspace */ SOCK_WIFI_STATUS, /* push wifi status to userspace */ + SOCK_NOFCS, /* Tell NIC not to do the Ethernet FCS. + * Will use last 4 bytes of packet sent from + * user-space instead. + */ }; static inline void sock_copy_flags(struct sock *nsk, struct sock *osk) @@ -871,8 +902,7 @@ struct proto { */ int (*init_cgroup)(struct cgroup *cgrp, struct cgroup_subsys *ss); - void (*destroy_cgroup)(struct cgroup *cgrp, - struct cgroup_subsys *ss); + void (*destroy_cgroup)(struct cgroup *cgrp); struct cg_proto *(*proto_cgroup)(struct mem_cgroup *memcg); #endif }; @@ -1824,7 +1854,7 @@ static inline bool wq_has_sleeper(struct socket_wq *wq) static inline void sock_poll_wait(struct file *filp, wait_queue_head_t *wait_address, poll_table *p) { - if (p && wait_address) { + if (!poll_does_not_wait(p) && wait_address) { poll_wait(filp, wait_address, p); /* * We need to be sure we are in sync with the |