[PATCH] knfsd: SUNRPC: Cache remote peer's address in svc_sock

The remote peer's address won't change after the socket has been accepted.  We
don't need to call ->getname on every incoming request.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index f030409d2994..cccea0a0feb4 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -57,6 +57,9 @@ struct svc_sock {
 
         /* cache of various info for TCP sockets */
         void                    *sk_info_authunix;
+
+        struct sockaddr_storage sk_remote;      /* remote peer's address */
+        int                     sk_remotelen;   /* length of address */
 };
 
 /*