Commit 1470ddf7 authored by Herbert Xu's avatar Herbert Xu Committed by David S. Miller

inet: Remove explicit write references to sk/inet in ip_append_data

In order to allow simultaneous calls to ip_append_data on the same
socket, it must not modify any shared state in sk or inet (other
than those that are designed to allow that such as atomic counters).

This patch abstracts out write references to sk and inet_sk in
ip_append_data and its friends so that we may use the underlying
code in parallel.
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Acked-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5a2ef920
...@@ -86,6 +86,19 @@ static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk) ...@@ -86,6 +86,19 @@ static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk)
return (struct inet_request_sock *)sk; return (struct inet_request_sock *)sk;
} }
struct inet_cork {
unsigned int flags;
unsigned int fragsize;
struct ip_options *opt;
struct dst_entry *dst;
int length; /* Total length of all frames */
__be32 addr;
struct flowi fl;
struct page *page;
u32 off;
u8 tx_flags;
};
struct ip_mc_socklist; struct ip_mc_socklist;
struct ipv6_pinfo; struct ipv6_pinfo;
struct rtable; struct rtable;
...@@ -143,15 +156,7 @@ struct inet_sock { ...@@ -143,15 +156,7 @@ struct inet_sock {
int mc_index; int mc_index;
__be32 mc_addr; __be32 mc_addr;
struct ip_mc_socklist __rcu *mc_list; struct ip_mc_socklist __rcu *mc_list;
struct { struct inet_cork cork;
unsigned int flags;
unsigned int fragsize;
struct ip_options *opt;
struct dst_entry *dst;
int length; /* Total length of all frames */
__be32 addr;
struct flowi fl;
} cork;
}; };
#define IPCORK_OPT 1 /* ip-options has been held in ipcork.opt */ #define IPCORK_OPT 1 /* ip-options has been held in ipcork.opt */
......
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