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authorZach Brown <zach.brown@oracle.com>2010-07-23 19:32:31 +0200
committerAndy Grover <andy.grover@oracle.com>2010-09-09 03:16:47 +0200
commit5adb5bc65f93e52341c3fc9d03d4030dd375e256 (patch)
tree55b19c7757ccd64f58169a05cd63e91bee409bad /net/rds/ib_ring.c
parentRDS: remove old rs_transport comment (diff)
downloadlinux-5adb5bc65f93e52341c3fc9d03d4030dd375e256.tar.xz
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RDS: have sockets get transport module references
Right now there's nothing to stop the various paths that use rs->rs_transport from racing with rmmod and executing freed transport code. The simple fix is to have binding to a transport also hold a reference to the transport's module, removing this class of races. We already had an unused t_owner field which was set for the modular transports and which wasn't set for the built-in loop transport. Signed-off-by: Zach Brown <zach.brown@oracle.com>
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