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5da207993e
linux/net/dccp
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Eric Dumazet 2ab2ddd301 inet: make sure to grab rcu_read_lock before using ireq->ireq_opt 
Timer handlers do not imply rcu_read_lock(), so my recent fix
triggered a LOCKDEP warning when SYNACK is retransmit.

Lets add rcu_read_lock()/rcu_read_unlock() pairs around ireq->ireq_opt
usages instead of guessing what is done by callers, since it is
not worth the pain.

Get rid of ireq_opt_deref() helper since it hides the logic
without real benefit, since it is now a standard rcu_dereference().

Fixes: 1ad98e9d1b ("tcp/dccp: fix lockdep issue when SYN is backlogged")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-02 15:52:12 -07:00
..
ccids dccp: fix undefined behavior with 'cwnd' shift in ccid2_cwnd_restart() 2018-08-07 15:34:44 -07:00
ackvec.c net: dccp: drop unneeded newline 2018-01-02 13:49:32 -05:00
ackvec.h
ccid.c
ccid.h
dccp.h Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
diag.c
feat.c dccp: fix a memleak for dccp_feat_init err process 2017-07-27 00:01:05 -07:00
feat.h
input.c tcp/dccp: fix lockdep issue when SYN is backlogged 2018-10-01 15:42:13 -07:00
ipv4.c inet: make sure to grab rcu_read_lock before using ireq->ireq_opt 2018-10-02 15:52:12 -07:00
ipv6.c Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
ipv6.h
Kconfig net: dccp: Remove dccpprobe module 2018-01-02 14:27:30 -05:00
Makefile net: dccp: Remove dccpprobe module 2018-01-02 14:27:30 -05:00
minisocks.c net-tcp: remove useless tw_timeout field 2018-06-05 10:45:24 -04:00
options.c net: dccp: mark expected switch fall-throughs 2017-10-16 21:15:21 +01:00
output.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
proto.c net: simplify sock_poll_wait 2018-07-30 09:10:25 -07:00
qpolicy.c
sysctl.c
timer.c dccp: fix tasklet usage 2018-05-03 15:14:57 -04:00
trace.h net: dccp: Add DCCP sendmsg trace event 2018-01-02 14:27:30 -05:00