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When an RxRPC service packet comes in, the target connection is looked up by an rb-tree search under RCU and a read-locked seqlock; the seqlock retry check is, however, currently skipped if we got a match, but probably shouldn't be in case the connection we found gets replaced whilst we're doing a search. Make the lookup procedure always go through need_seqretry(), even if the lookup was successful. This makes sure we always pick up on a write-lock event. On the other hand, since we don't take a ref on the object, but rely on RCU to prevent its destruction after dropping the seqlock, I'm not sure this is necessary. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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.. | ||
af_rxrpc.c | ||
ar-internal.h | ||
call_accept.c | ||
call_event.c | ||
call_object.c | ||
conn_client.c | ||
conn_event.c | ||
conn_object.c | ||
conn_service.c | ||
input.c | ||
insecure.c | ||
Kconfig | ||
key.c | ||
local_event.c | ||
local_object.c | ||
Makefile | ||
misc.c | ||
net_ns.c | ||
output.c | ||
peer_event.c | ||
peer_object.c | ||
proc.c | ||
protocol.h | ||
recvmsg.c | ||
rxkad.c | ||
security.c | ||
sendmsg.c | ||
skbuff.c | ||
sysctl.c | ||
utils.c |