dm: export dm_copy_name_and_uuid

snitm · snitm · commit 61931c0ee9cf · 2020-10-01T15:03:40.000-04:00
Allow DM targets to access the configured name and uuid.
Also, bump DM ioctl version.

Signed-off-by: Mike Snitzer &lt;snitzer@redhat.com&gt;
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
@@ -2044,7 +2044,7 @@ int dm_copy_name_and_uuid(struct mapped_device *md, char *name, char *uuid)
 
 	return r;
 }
-
+EXPORT_SYMBOL_GPL(dm_copy_name_and_uuid);
 
 /**
  * dm_early_create - create a mapped device in early boot.
diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h
@@ -272,9 +272,9 @@ enum {
 #define DM_DEV_SET_GEOMETRY	_IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
 
 #define DM_VERSION_MAJOR	4
-#define DM_VERSION_MINOR	42
+#define DM_VERSION_MINOR	43
 #define DM_VERSION_PATCHLEVEL	0
-#define DM_VERSION_EXTRA	"-ioctl (2020-02-27)"
+#define DM_VERSION_EXTRA	"-ioctl (2020-10-01)"
 
 /* Status bits */
 #define DM_READONLY_FLAG	(1 << 0) /* In/Out */

Original file line number	Diff line number	Diff line change
`@@ -2044,7 +2044,7 @@ int dm_copy_name_and_uuid(struct mapped_device md, char name, char *uuid)`
`2044`	`2044`
`2045`	`2045`	`return r;`
`2046`	`2046`	`}`
`2047`		`-`
	`2047`	`+EXPORT_SYMBOL_GPL(dm_copy_name_and_uuid);`
`2048`	`2048`
`2049`	`2049`	`/**`
`2050`	`2050`	`* dm_early_create - create a mapped device in early boot.`