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| author | Mark Fasheh <mark.fasheh@oracle.com> | 2007-10-19 02:23:46 +0400 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2008-01-26 01:45:57 +0300 |
| commit | c934a92d05b549dd2f25db72c5fc3cb9dcf1b611 (patch) | |
| tree | 57150c87d1d465db28fceaa14c9d5b220c7a3954 /fs/ocfs2/cluster | |
| parent | f1f540688eae66c274ff1c1133b5d9c687b28f58 (diff) | |
| download | linux-c934a92d05b549dd2f25db72c5fc3cb9dcf1b611.tar.xz | |
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 <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/cluster')
| -rw-r--r-- | fs/ocfs2/cluster/tcp_internal.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h index 79bd6665b3ca..b2e832aca567 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; |