Merge with text format branch.

Lots of changes/very little testing so far => there'll be bugs!

Use 'vgcreate -M text' to create a volume group with its metadata stored
in text files.  Text format metadata changes should be reasonably atomic,
with a (basic) automatic recovery mechanism if the system crashes while a
change is in progress.

Add a metadata section to lvm.conf to specify multiple directories if
you want (recommended) to keep multiple copies of the metadata (eg on
different filesystems).

e.g. metadata {
        dirs = ["/etc/lvm/metadata1","/usr/local/lvm/metadata2"]
}

Plenty of refinements still in the pipeline.

1 files changed, 3 insertions, 4 deletions

diff --git a/lib/format_text/format-text.h b/lib/format_text/format-text.h
index 6dbd1844..d5c77c71 100644
--- a/lib/format_text/format-text.h
+++ b/lib/format_text/format-text.h
@@ -32,9 +32,8 @@ int archive_list(struct cmd_context *cmd, struct uuid_map *um,
 /*
  * The text format can read and write a volume_group to a file.
  */
-struct format_instance *text_format_create(struct cmd_context *cmd,
-					   const char *file,
-					   struct uuid_map *um,
-					   const char *desc);
+struct format_type *create_text_format(struct cmd_context *cmd);
+void *create_text_context(struct format_type *fmt, const char *path, 
+			  const char *desc);
 
 #endif