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43962dd7ee
linux/net/rds
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santosh.shilimkar@oracle.com 43962dd7ee RDS: always free recv frag as we free its ring entry 
We were still seeing rare occurrences of the WARN_ON(recv->r_frag) which
indicates that the recv refill path was finding allocated frags in ring
entries that were marked free. These were usually followed by OOM crashes.
They only seem to be occurring in the presence of completion errors and
connection resets.

This patch ensures that we free the frag as we mark the ring entry free.
This should stop the refill path from finding allocated frags in ring
entries that were marked free.

Reviewed-by: Ajaykumar Hotchandani <ajaykumar.hotchandani@oracle.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-25 13:35:29 -07:00
..
af_rds.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-06-24 16:49:49 -07:00
bind.c RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net 2015-08-07 11:29:57 -07:00
cong.c rds: rds_cong_queue_updates needs to defer the congestion update transmission 2015-02-11 14:35:44 -08:00
connection.c RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net 2015-08-07 11:29:57 -07:00
ib_cm.c RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net 2015-08-07 11:29:57 -07:00
ib_rdma.c rds: rds_ib_device.refcount overflow 2015-07-14 13:20:11 -04:00
ib_recv.c RDS: always free recv frag as we free its ring entry 2015-08-25 13:35:29 -07:00
ib_ring.c
ib_send.c Merge branch 'for-4.2-misc' into k.o/for-4.2 2015-06-02 09:33:22 -04:00
ib_stats.c
ib_sysctl.c net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
ib.c RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net 2015-08-07 11:29:57 -07:00
ib.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-06-24 16:49:49 -07:00
info.c rds: fix an integer overflow test in rds_info_getsockopt() 2015-08-03 15:20:16 -07:00
info.h
iw_cm.c RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net 2015-08-07 11:29:57 -07:00
iw_rdma.c rds: avoid potential stack overflow 2015-03-12 00:28:01 -04:00
iw_recv.c rds: switch ->inc_copy_to_user() to passing iov_iter 2014-11-24 05:16:43 -05:00
iw_ring.c
iw_send.c rds: re-entry of rds_ib_xmit/rds_iw_xmit 2015-06-02 09:22:31 -04:00
iw_stats.c
iw_sysctl.c rds: remove the unneed NULL checking 2014-05-09 15:59:45 -04:00
iw.c RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net 2015-08-07 11:29:57 -07:00
iw.h rds: switch ->inc_copy_to_user() to passing iov_iter 2014-11-24 05:16:43 -05:00
Kconfig net/rds: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:40:02 -08:00
loop.c RDS: use gfp flags from caller in conn_alloc() 2012-03-22 19:29:58 -04:00
loop.h
Makefile
message.c rds: Make rds_message_copy_from_user() return 0 on success. 2015-02-07 22:41:56 -08:00
page.c net: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:45 -07:00
rdma_transport.c RDS: Switch to generic logging helpers 2015-05-18 13:44:23 -04:00
rdma_transport.h
rdma.c RDS: restore return value in rds_cmsg_rdma_args() 2015-08-25 13:35:29 -07:00
rds.h RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net 2015-08-07 11:29:57 -07:00
recv.c net: Remove iocb argument from sendmsg and recvmsg 2015-03-02 13:06:31 -05:00
send.c RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net 2015-08-07 11:29:57 -07:00
stats.c net/rds: zero last byte for strncpy 2013-03-08 00:35:44 -05:00
sysctl.c net: rds: use correct size for max unacked packets and bytes 2015-02-04 16:07:27 -08:00
tcp_connect.c RDS-TCP: Support multiple RDS-TCP listen endpoints, one per netns. 2015-08-07 11:29:58 -07:00
tcp_listen.c RDS-TCP: Support multiple RDS-TCP listen endpoints, one per netns. 2015-08-07 11:29:58 -07:00
tcp_recv.c rds: switch ->inc_copy_to_user() to passing iov_iter 2014-11-24 05:16:43 -05:00
tcp_send.c arch: Mass conversion of smp_mb__*() 2014-04-18 14:20:48 +02:00
tcp_stats.c
tcp.c RDS-TCP: Support multiple RDS-TCP listen endpoints, one per netns. 2015-08-07 11:29:58 -07:00
tcp.h RDS-TCP: Support multiple RDS-TCP listen endpoints, one per netns. 2015-08-07 11:29:58 -07:00
threads.c net/rds: call rds_conn_drop instead of open code it at rds_connect_complete 2014-10-03 12:51:59 -07:00
transport.c RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net 2015-08-07 11:29:57 -07:00