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OpenCloudOS-Kernel/net/rds
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Håkon Bugge e623a48ee4 rds: Make sure updates to cp_send_gen can be observed 
cp->cp_send_gen is treated as a normal variable, although it may be
used by different threads.

This is fixed by using {READ,WRITE}_ONCE when it is incremented and
READ_ONCE when it is read outside the {acquire,release}_in_xmit
protection.

Normative reference from the Linux-Kernel Memory Model:

    Loads from and stores to shared (but non-atomic) variables should
    be protected with the READ_ONCE(), WRITE_ONCE(), and
    ACCESS_ONCE().

Clause 5.1.2.4/25 in the C standard is also relevant.

Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com>
Reviewed-by: Knut Omang <knut.omang@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-07-20 15:33:01 -07:00
..
Kconfig RDS: Drop stale iWARP RDMA transport 2016-03-02 14:13:17 -05:00
Makefile rds: debug messages are enabled by default 2016-10-29 15:55:57 -04:00
af_rds.c RDS: validate the requested traces user input against max supported 2017-01-06 22:14:26 -05:00
bind.c RDS: log the address on bind failure 2017-01-02 14:02:39 -08:00
cong.c RDS: split out connection specific state from rds_connection to rds_conn_path 2016-06-14 23:50:41 -07:00
connection.c rds: tcp: set linger to 1 when unloading a rds-tcp 2017-06-22 11:34:04 -04:00
ib.c net, rds: convert rds_ib_device.refcount from atomic_t to refcount_t 2017-07-04 22:35:17 +01:00
ib.h net, rds: convert rds_ib_device.refcount from atomic_t to refcount_t 2017-07-04 22:35:17 +01:00
ib_cm.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-15 11:59:10 -07:00
ib_fmr.c rds: ib: unmap the scatter/gather list when error 2017-03-13 23:20:05 -07:00
ib_frmr.c RDS: IB: split the mr registration and invalidation path 2017-01-02 14:02:47 -08:00
ib_mr.h rds: ib: add the static type to the function 2017-03-13 23:20:05 -07:00
ib_rdma.c net, rds: convert rds_ib_device.refcount from atomic_t to refcount_t 2017-07-04 22:35:17 +01:00
ib_recv.c RDS: add receive message trace used by application 2017-01-02 14:02:59 -08:00
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:Remove unnecessary ib_ring unalloc 2017-02-17 15:19:51 -05:00
ib_stats.c RDS: IB: add few useful cache stasts 2017-01-02 14:02:51 -08:00
ib_sysctl.c net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
info.c rds: fix an integer overflow test in rds_info_getsockopt() 2015-08-03 15:20:16 -07:00
info.h RDS: Info and stats 2009-02-26 23:39:25 -08:00
loop.c RDS: TCP: Hooks to set up a single connection path 2016-07-01 16:45:17 -04:00
loop.h RDS: loopback 2009-02-26 23:39:26 -08:00
message.c net, rds: convert rds_message.m_refcount from atomic_t to refcount_t 2017-07-04 22:35:18 +01:00
page.c rds: remove dead code 2016-12-26 21:35:39 -05:00
rdma.c net, rds: convert rds_mr.r_refcount from atomic_t to refcount_t 2017-07-04 22:35:17 +01:00
rdma_transport.c RDS: RDMA: start rdma listening after init 2017-01-02 14:02:45 -08:00
rdma_transport.h RDS: Drop stale iWARP RDMA transport 2016-03-02 14:13:17 -05:00
rds.h net, rds: convert rds_message.m_refcount from atomic_t to refcount_t 2017-07-04 22:35:18 +01:00
rds_single_path.h RDS: split out connection specific state from rds_connection to rds_conn_path 2016-06-14 23:50:41 -07:00
recv.c net, rds: convert rds_incoming.i_refcount from atomic_t to refcount_t 2017-07-04 22:35:17 +01:00
send.c rds: Make sure updates to cp_send_gen can be observed 2017-07-20 15:33:01 -07:00
stats.c net/rds: zero last byte for strncpy 2013-03-08 00:35:44 -05:00
sysctl.c net: rds: fix coding style issues 2016-06-18 21:34:09 -07:00
tcp.c Merge branches 'uaccess.alpha', 'uaccess.arc', 'uaccess.arm', 'uaccess.arm64', 'uaccess.avr32', 'uaccess.bfin', 'uaccess.c6x', 'uaccess.cris', 'uaccess.frv', 'uaccess.h8300', 'uaccess.hexagon', 'uaccess.ia64', 'uaccess.m32r', 'uaccess.m68k', 'uaccess.metag', 'uaccess.microblaze', 'uaccess.mips', 'uaccess.mn10300', 'uaccess.nios2', 'uaccess.openrisc', 'uaccess.parisc', 'uaccess.powerpc', 'uaccess.s390', 'uaccess.score', 'uaccess.sh', 'uaccess.sparc', 'uaccess.tile', 'uaccess.um', 'uaccess.unicore32', 'uaccess.x86' and 'uaccess.xtensa' into work.uaccess 2017-04-26 12:06:59 -04:00
tcp.h rds: tcp: set linger to 1 when unloading a rds-tcp 2017-06-22 11:34:04 -04:00
tcp_connect.c rds: tcp: set linger to 1 when unloading a rds-tcp 2017-06-22 11:34:04 -04:00
tcp_listen.c rds: tcp: use sock_create_lite() to create the accept socket 2017-07-08 11:16:16 +01:00
tcp_recv.c RDS: add receive message trace used by application 2017-01-02 14:02:59 -08:00
tcp_send.c net: convert sock.sk_wmem_alloc from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
tcp_stats.c net: rds: fix const array syntax 2011-07-01 16:16:19 -07:00
threads.c rds: tcp: various endian-ness fixes 2017-06-16 12:45:15 -04:00
transport.c rds: remove unnecessary returned value check 2017-03-03 09:51:22 -08:00