From 7d4c04fc170087119727119074e72445f2bb192b Mon Sep 17 00:00:00 2001 From: "Keller, Jacob E" Date: Thu, 28 Mar 2013 11:19:25 +0000 Subject: net: add option to enable error queue packets waking select Currently, when a socket receives something on the error queue it only wakes up the socket on select if it is in the "read" list, that is the socket has something to read. It is useful also to wake the socket if it is in the error list, which would enable software to wait on error queue packets without waking up for regular data on the socket. The main use case is for receiving timestamped transmit packets which return the timestamp to the socket via the error queue. This enables an application to select on the socket for the error queue only instead of for the regular traffic. -v2- * Added the SO_SELECT_ERR_QUEUE socket option to every architechture specific file * Modified every socket poll function that checks error queue Signed-off-by: Jacob Keller Cc: Jeffrey Kirsher Cc: Richard Cochran Cc: Matthew Vick Signed-off-by: David S. Miller --- arch/sparc/include/uapi/asm/socket.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/sparc/include/uapi/asm') diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h index cbbad74b2e0..89f49b68a21 100644 --- a/arch/sparc/include/uapi/asm/socket.h +++ b/arch/sparc/include/uapi/asm/socket.h @@ -68,6 +68,8 @@ #define SO_LOCK_FILTER 0x0028 +#define SO_SELECT_ERR_QUEUE 0x0029 + /* Security levels - as per NRL IPv6 - don't actually do anything */ #define SO_SECURITY_AUTHENTICATION 0x5001 #define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002 -- cgit v1.2.3-70-g09d2