linux - Linux Kernel (branches are rebased on master from time to time)

Age	Commit message (Collapse)	Author	Files	Lines
2010-09-08	rds: Use RCU for the bind lookup searches	Chris Mason	1	-44/+46
	The RDS bind lookups are somewhat expensive in terms of CPU time and locking overhead. This commit changes them into a faster RCU based hash tree instead of the rbtrees they were using before. On large NUMA systems it is a significant improvement. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2010-09-08	rds: switch to rwlock on bind_lock	Chris Mason	1	-7/+7
	The bind_lock is almost entirely readonly, but it gets hammered during normal operations and is a major bottleneck. This commit changes it to an rwlock, which takes it from 80% of the system time on a big numa machine down to much lower numbers. A better fix would involve RCU, which is done in a later commit Signed-off-by: Chris Mason <chris.mason@oracle.com>
2010-09-08	RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons	Andy Grover	1	-2/+2
	Favor "if (foo)" style over "if (foo != NULL)". Signed-off-by: Andy Grover <andy.grover@oracle.com>
2009-08-23	RDS: Add a debug message suggesting to load transport modules	Andy Grover	1	-0/+3
	Now that RDS transports are no longer compiled-in to RDS core, there is now the possibility that they will not be loaded. This adds a helpful suggestion when rds_bind() fails to find a transport. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-26	RDS: Socket interface	Andy Grover	1	-0/+199
	Implement the RDS (Reliable Datagram Sockets) interface. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>