dm snapshot: add new persistent store option to support overflow

[uclinux-h8/linux.git] / drivers / md / dm-exception-store.h

diff --git a/drivers/md/dm-exception-store.h b/drivers/md/dm-exception-store.h
index 0b25362..fae34e7 100644 (file)
--- a/drivers/md/dm-exception-store.h
+++ b/drivers/md/dm-exception-store.h
@@ -42,8 +42,7 @@ struct dm_exception_store_type {
        const char *name;
        struct module *module;
 
-       int (*ctr) (struct dm_exception_store *store,
-                   unsigned argc, char **argv);
+       int (*ctr) (struct dm_exception_store *store, char *options);
 
        /*
         * Destroys this object when you've finished with it.
@@ -123,6 +122,8 @@ struct dm_exception_store {
        unsigned chunk_shift;
 
        void *context;
+
+       bool userspace_supports_overflow;
 };
 
 /*