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authorSven Eckelmann <sven@narfation.org>2016-01-05 12:06:25 +0100
committerAntonio Quartulli <a@unstable.cc>2016-01-16 15:49:51 +0100
commitb4d922cfc9c08318eeb77d53b7633740e6b0efb0 (patch)
treed5c6717a8a2330c2fce8df47528dfd167f62a69a /fs/eventfd.c
parentbatman-adv: Drop immediate neigh_ifinfo free function (diff)
downloadlinux-b4d922cfc9c08318eeb77d53b7633740e6b0efb0.tar.xz
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batman-adv: Drop immediate batadv_hard_iface free function
It is not allowed to free the memory of an object which is part of a list which is protected by rcu-read-side-critical sections without making sure that no other context is accessing the object anymore. This usually happens by removing the references to this object and then waiting until the rcu grace period is over and no one (allowedly) accesses it anymore. But the _now functions ignore this completely. They free the object directly even when a different context still tries to access it. This has to be avoided and thus these functions must be removed and all functions have to use batadv_hardif_free_ref. Fixes: 89652331c00f ("batman-adv: split tq information in neigh_node struct") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <a@unstable.cc>
Diffstat (limited to 'fs/eventfd.c')
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