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rxrpc: Allow the reply time to be obtained on a client call

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Allow the timestamp on the sk_buff holding the first DATA packet of a reply
to be queried.  This can then be used as a base for the expiry time
calculation on the callback promise duration indicated by an operation
result.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2018-10-04 09:42:29 +01:00
parent 5a790b7375
commit 2070a3e449
3 changed files with 57 additions and 0 deletions
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3
include/net/af_rxrpc.h
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@ -13,6 +13,7 @@
#define _NET_RXRPC_H
#include <linux/rxrpc.h>
#include <linux/ktime.h>
struct key;
struct sock;
@ -77,5 +78,7 @@ int rxrpc_kernel_retry_call(struct socket *, struct rxrpc_call *,
int rxrpc_kernel_check_call(struct socket *, struct rxrpc_call *,
enum rxrpc_call_completion *, u32 *);
u32 rxrpc_kernel_check_life(struct socket *, struct rxrpc_call *);
bool rxrpc_kernel_get_reply_time(struct socket *, struct rxrpc_call *,
ktime_t *);
#endif /* _NET_RXRPC_H */