santosh.shilimkar@oracle.com 804605eae4 RDS: Fix the atomicity for congestion map update ... commit e47db94e10447fc467777a40302f2b393e9af2fa upstream. Two different threads with different rds sockets may be in rds_recv_rcvbuf_delta() via receive path. If their ports both map to the same word in the congestion map, then using non-atomic ops to update it could cause the map to be incorrect. Lets use atomics to avoid such an issue. Full credit to Wengang <wen.gang.wang@oracle.com> for finding the issue, analysing it and also pointing out to offending code with spin lock based fix. Reviewed-by: Leon Romanovsky <leon@leon.nu> Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Cc: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-05-02 21:19:49 -07:00
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af_rds.c
bind.c
cong.c	RDS: Fix the atomicity for congestion map update	2017-05-02 21:19:49 -07:00
connection.c
ib.c
ib.h
ib_cm.c
ib_rdma.c
ib_recv.c
ib_ring.c
ib_send.c
ib_stats.c
ib_sysctl.c
info.c
info.h
iw.c
iw.h
iw_cm.c
iw_rdma.c
iw_recv.c
iw_ring.c
iw_send.c
iw_stats.c
iw_sysctl.c
Kconfig
loop.c
loop.h
Makefile
message.c
page.c
rdma.c
rdma_transport.c
rdma_transport.h
rds.h
recv.c
send.c
stats.c
sysctl.c
tcp.c
tcp.h
tcp_connect.c
tcp_listen.c
tcp_recv.c
tcp_send.c
tcp_stats.c
threads.c
transport.c