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sock_diag: Introduce the meminfo nla core (v2)

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Add a routine that dumps memory-related values of a socket.
It's made as an array to make it possible to add more stuff
here later without breaking compatibility.

Since v1: The SK_MEMINFO_ constants are in userspace
visible part of sock_diag.h, the rest is under __KERNEL__.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov
2011-12-30 00:53:13 +00:00
committed by David S. Miller
parent 288461e154
commit 5d2e5f274f
2 changed files with 38 additions and 0 deletions
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15
include/linux/sock_diag.h
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@@ -10,9 +10,22 @@ struct sock_diag_req {
__u8 sdiag_protocol;
};
enum {
SK_MEMINFO_RMEM_ALLOC,
SK_MEMINFO_RCVBUF,
SK_MEMINFO_WMEM_ALLOC,
SK_MEMINFO_SNDBUF,
SK_MEMINFO_FWD_ALLOC,
SK_MEMINFO_WMEM_QUEUED,
SK_MEMINFO_OPTMEM,
SK_MEMINFO_VARS,
};
#ifdef __KERNEL__
struct sk_buff;
struct nlmsghdr;
struct sock;
struct sock_diag_handler {
__u8 family;
@@ -28,6 +41,8 @@ void sock_diag_unregister_inet_compat(int (*fn)(struct sk_buff *skb, struct nlms
int sock_diag_check_cookie(void *sk, __u32 *cookie);
void sock_diag_save_cookie(void *sk, __u32 *cookie);
int sock_diag_put_meminfo(struct sock *sk, struct sk_buff *skb, int attr);
extern struct sock *sock_diag_nlsk;
#endif /* KERNEL */
#endif