Chris Mason 9e29db0e36 RDS: Use a generation counter to avoid rds_send_xmit loop ... rds_send_xmit is required to loop around after it releases the lock because someone else could done a trylock, found someone working on the list and backed off. But, once we drop our lock, it is possible that someone else does come in and make progress on the list. We should detect this and not loop around if another process is actually working on the list. This patch adds a generation counter that is bumped every time we get the lock and do some send work. If the retry notices someone else has bumped the generation counter, it does not need to loop around and continue working. Signed-off-by: Chris Mason <chris.mason@oracle.com> Signed-off-by: Andy Grover <andy.grover@oracle.com>		2010-09-08 18:12:24 -07:00
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af_rds.c	RDS: fold rdma.h into rds.h	2010-09-08 18:11:37 -07:00
bind.c	RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons	2010-09-08 18:11:32 -07:00
cong.c	RDS: Bypass workqueue when queueing cong updates	2010-09-08 18:12:16 -07:00
connection.c	RDS: Use a generation counter to avoid rds_send_xmit loop	2010-09-08 18:12:24 -07:00
ib.c	RDS: Stop supporting old cong map sending method	2010-09-08 18:12:10 -07:00
ib.h	RDS: Move atomic stats from general to ib-specific area	2010-09-08 18:12:20 -07:00
ib_cm.c	RDS: Refill recv ring directly from tasklet	2010-09-08 18:12:11 -07:00
ib_rdma.c	RDS: Implement atomic operations	2010-09-08 18:11:41 -07:00
ib_recv.c	RDS: Refill recv ring directly from tasklet	2010-09-08 18:12:11 -07:00
ib_ring.c	RDS/IW+IB: Set recv ring low water mark to 1/2 full.	2009-04-09 17:21:14 -07:00
ib_send.c	RDS: Move atomic stats from general to ib-specific area	2010-09-08 18:12:20 -07:00
ib_stats.c	RDS: Move atomic stats from general to ib-specific area	2010-09-08 18:12:20 -07:00
ib_sysctl.c	RDS: Remove unsignaled_bytes sysctl	2010-09-08 18:11:52 -07:00
info.c	RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons	2010-09-08 18:11:32 -07:00
info.h	RDS: Info and stats	2009-02-26 23:39:25 -08:00
iw.c	RDS: Stop supporting old cong map sending method	2010-09-08 18:12:10 -07:00
iw.h	RDS: Remove struct rds_rdma_op	2010-09-08 18:11:58 -07:00
iw_cm.c	RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons	2010-09-08 18:11:32 -07:00
iw_rdma.c	RDS: fold rdma.h into rds.h	2010-09-08 18:11:37 -07:00
iw_recv.c	RDS: inc_purge() transport function unused - remove it	2010-09-08 18:11:46 -07:00
iw_ring.c	RDS/IW+IB: Set recv ring low water mark to 1/2 full.	2009-04-09 17:21:14 -07:00
iw_send.c	RDS: Rename data op members prefix from m_ to op_	2010-09-08 18:11:59 -07:00
iw_stats.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-09-15 09:39:44 -07:00
iw_sysctl.c	RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons	2010-09-08 18:11:32 -07:00
Kconfig	RDS: Modularize RDMA and TCP transports	2009-08-23 19:13:09 -07:00
loop.c	RDS: Stop supporting old cong map sending method	2010-09-08 18:12:10 -07:00
loop.h	RDS: loopback	2009-02-26 23:39:26 -08:00
Makefile	RDS: Modularize RDMA and TCP transports	2009-08-23 19:13:09 -07:00
message.c	RDS: Do wait_event_interruptible instead of wait_event	2010-09-08 18:12:22 -07:00
page.c	RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons	2010-09-08 18:11:32 -07:00
rdma.c	RDS: Add flag for silent ops. Do atomic op before RDMA	2010-09-08 18:12:06 -07:00
rdma_transport.c	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2010-04-27 12:49:13 -07:00
rdma_transport.h	RDS: Common RDMA transport code	2009-02-26 23:39:33 -08:00
rds.h	RDS: Use a generation counter to avoid rds_send_xmit loop	2010-09-08 18:12:24 -07:00
recv.c	RDS: Whitespace	2010-09-08 18:11:44 -07:00
send.c	RDS: Use a generation counter to avoid rds_send_xmit loop	2010-09-08 18:12:24 -07:00
stats.c	RDS: Move atomic stats from general to ib-specific area	2010-09-08 18:12:20 -07:00
sysctl.c	RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons	2010-09-08 18:11:32 -07:00
tcp.c	RDS: Stop supporting old cong map sending method	2010-09-08 18:12:10 -07:00
tcp.h	RDS: Stop supporting old cong map sending method	2010-09-08 18:12:10 -07:00
tcp_connect.c	RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons	2010-09-08 18:11:32 -07:00
tcp_listen.c	RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons	2010-09-08 18:11:32 -07:00
tcp_recv.c	RDS: inc_purge() transport function unused - remove it	2010-09-08 18:11:46 -07:00
tcp_send.c	RDS: Stop supporting old cong map sending method	2010-09-08 18:12:10 -07:00
tcp_stats.c	RDS: Add TCP transport to RDS	2009-08-23 19:13:02 -07:00
threads.c	RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons	2010-09-08 18:11:32 -07:00
transport.c	RDS: Track transports via an array, not a list	2009-08-23 19:13:12 -07:00