From c934a92d05b549dd2f25db72c5fc3cb9dcf1b611 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Thu, 18 Oct 2007 15:23:46 -0700 Subject: ocfs2: Remove data locks The meta lock now covers both meta data and data, so this just removes the now-redundant data lock. Combining locks saves us a round of lock mastery per inode and one less lock to ping between nodes during read/write. We don't lose much - since meta locks were always held before a data lock (and at the same level) ordered writeout mode (the default) ensured that flushing for the meta data lock also pushed out data anyways. Signed-off-by: Mark Fasheh --- fs/ocfs2/cluster/tcp_internal.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'fs/ocfs2/cluster') diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h index 79bd666..b2e832a 100644 --- a/fs/ocfs2/cluster/tcp_internal.h +++ b/fs/ocfs2/cluster/tcp_internal.h @@ -38,6 +38,9 @@ * locking semantics of the file system using the protocol. It should * be somewhere else, I'm sure, but right now it isn't. * + * New in version 10: + * - Meta/data locks combined + * * New in version 9: * - All votes removed * @@ -63,7 +66,7 @@ * - full 64 bit i_size in the metadata lock lvbs * - introduction of "rw" lock and pushing meta/data locking down */ -#define O2NET_PROTOCOL_VERSION 9ULL +#define O2NET_PROTOCOL_VERSION 10ULL struct o2net_handshake { __be64 protocol_version; __be64 connector_id; -- cgit v1.1