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authorThomas Graf <tgraf@suug.ch>2015-03-24 16:18:20 +0300
committerDavid S. Miller <davem@davemloft.net>2015-03-25 00:48:40 +0300
commit6b6f302ceda7a052dab545d6c69abf5f0d4a6cab (patch)
tree8464850fd94dba0dfa34c75c46dfb3fcf4c3c381 /ipc/Makefile
parentb5e2c150ac914f28a28833b57397bec0b0a2bd5f (diff)
downloadlinux-6b6f302ceda7a052dab545d6c69abf5f0d4a6cab.tar.xz
rhashtable: Add rhashtable_free_and_destroy()
rhashtable_destroy() variant which stops rehashes, iterates over the table and calls a callback to release resources. Avoids need for nft_hash to embed rhashtable internals and allows to get rid of the being_destroyed flag. It also saves a 2nd mutex lock upon destruction. Also fixes an RCU lockdep splash on nft set destruction due to calling rht_for_each_entry_safe() without holding bucket locks. Open code this loop as we need know that no mutations may occur in parallel. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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