From: Thomas Graf <tgraf@suug.ch>
To: davem@davemloft.net, netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kaber@trash.net,
paulmck@linux.vnet.ibm.com, josh@joshtriplett.org,
challa@noironetworks.com, walpole@cs.pdx.edu,
dev@openvswitch.org
Subject: [PATCH 0/2 net-next] Lockless netlink_lookup() with new concurrent hash table
Date: Tue, 29 Jul 2014 13:41:31 +0200 [thread overview]
Message-ID: <cover.1406633945.git.tgraf@suug.ch> (raw)
Netlink sockets are maintained in a hash table to allow efficient lookup
via the port ID for unicast messages. However, lookups currently require
a read lock to be taken. This series adds a new generic, resizable,
scalable, concurrent hash table based on the paper referenced in the first
patch. It then makes use of the new data type to implement lockless
netlink_lookup().
Against net-next since the initial user of the new hash table is in net/
Thomas Graf (2):
lib: Resizable, Scalable, Concurrent Hash Table
netlink: Convert netlink_lookup() to use RCU protected hash table
include/linux/rhashtable.h | 208 ++++++++++++
lib/Kconfig.debug | 8 +
lib/Makefile | 2 +-
lib/rhashtable.c | 783 +++++++++++++++++++++++++++++++++++++++++++++
net/netlink/af_netlink.c | 285 +++++++----------
net/netlink/af_netlink.h | 18 +-
net/netlink/diag.c | 11 +-
7 files changed, 1119 insertions(+), 196 deletions(-)
create mode 100644 include/linux/rhashtable.h
create mode 100644 lib/rhashtable.c
--
1.9.3
WARNING: multiple messages have this Message-ID (diff)
From: Thomas Graf <tgraf-G/eBtMaohhA@public.gmane.org>
To: davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: dev-yBygre7rU0TnMu66kgdUjQ@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
josh-iaAMLnmF4UmaiuxdJuQwMA@public.gmane.org,
paulmck-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org,
kaber-dcUjhNyLwpNeoWH0uzbU5w@public.gmane.org,
walpole-sKt6ljEC1JY3uPMLIKxrzw@public.gmane.org
Subject: [PATCH 0/2 net-next] Lockless netlink_lookup() with new concurrent hash table
Date: Tue, 29 Jul 2014 13:41:31 +0200 [thread overview]
Message-ID: <cover.1406633945.git.tgraf@suug.ch> (raw)
Netlink sockets are maintained in a hash table to allow efficient lookup
via the port ID for unicast messages. However, lookups currently require
a read lock to be taken. This series adds a new generic, resizable,
scalable, concurrent hash table based on the paper referenced in the first
patch. It then makes use of the new data type to implement lockless
netlink_lookup().
Against net-next since the initial user of the new hash table is in net/
Thomas Graf (2):
lib: Resizable, Scalable, Concurrent Hash Table
netlink: Convert netlink_lookup() to use RCU protected hash table
include/linux/rhashtable.h | 208 ++++++++++++
lib/Kconfig.debug | 8 +
lib/Makefile | 2 +-
lib/rhashtable.c | 783 +++++++++++++++++++++++++++++++++++++++++++++
net/netlink/af_netlink.c | 285 +++++++----------
net/netlink/af_netlink.h | 18 +-
net/netlink/diag.c | 11 +-
7 files changed, 1119 insertions(+), 196 deletions(-)
create mode 100644 include/linux/rhashtable.h
create mode 100644 lib/rhashtable.c
--
1.9.3
next reply other threads:[~2014-07-29 11:41 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-29 11:41 Thomas Graf [this message]
2014-07-29 11:41 ` [PATCH 0/2 net-next] Lockless netlink_lookup() with new concurrent hash table Thomas Graf
2014-07-29 11:41 ` [PATCH 1/2] lib: Resizable, Scalable, Concurrent Hash Table Thomas Graf
2014-07-29 11:41 ` Thomas Graf
2014-07-29 15:30 ` Josh Triplett
2014-07-29 15:30 ` Josh Triplett
2014-07-29 16:55 ` Thomas Graf
2014-07-29 16:55 ` Thomas Graf
2014-07-29 11:41 ` [PATCH 2/2] netlink: Convert netlink_lookup() to use RCU protected hash table Thomas Graf
2014-07-29 11:41 ` Thomas Graf
2014-07-29 15:58 ` Tobias Klauser
2014-07-29 15:58 ` Tobias Klauser
2014-07-29 16:34 ` Thomas Graf
2014-07-31 2:08 ` [PATCH 0/2 net-next] Lockless netlink_lookup() with new concurrent " David Miller
2014-07-31 2:08 ` David Miller
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