We will need two sets of functions to work with two versions of metadump
formats. This commit adds the definition for 'struct mdrestore_ops' to hold
pointers to version specific mdrestore functions.
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Chandan Babu R <chandan.babu@xxxxxxxxxx>
---
mdrestore/xfs_mdrestore.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/mdrestore/xfs_mdrestore.c b/mdrestore/xfs_mdrestore.c
index d67a0629..53c5f68e 100644
--- a/mdrestore/xfs_mdrestore.c
+++ b/mdrestore/xfs_mdrestore.c
@@ -8,10 +8,23 @@
#include "xfs_metadump.h"
#include <libfrog/platform.h>
+union mdrestore_headers {
+ __be32 magic;
+ struct xfs_metablock v1;
+};
+
+struct mdrestore_ops {
+ void (*read_header)(union mdrestore_headers *header, FILE *md_fp);
+ void (*show_info)(union mdrestore_headers *header, const char *md_file);
+ void (*restore)(union mdrestore_headers *header, FILE *md_fp,
+ int ddev_fd, bool is_target_file);
+};
+
static struct mdrestore {
- bool show_progress;
- bool show_info;
- bool progress_since_warning;
+ struct mdrestore_ops *mdrops;
+ bool show_progress;
+ bool show_info;
+ bool progress_since_warning;
} mdrestore;
static void
--
2.39.1
