Generic support for --consistency-policy and PPL

[thirdparty/mdadm.git] / mdadm.h

diff --git a/mdadm.h b/mdadm.h
index cebc0c0a249f9c976fe5ca84a63abcf533679f0c..b52d4d304d7d8e09454f3c7e4ec30deb44f226bd 100644 (file)
--- a/mdadm.h
+++ b/mdadm.h
@@ -279,6 +279,15 @@ struct mdinfo {
        int journal_device_required;
        int journal_clean;
 
+       enum {
+               CONSISTENCY_POLICY_UNKNOWN,
+               CONSISTENCY_POLICY_NONE,
+               CONSISTENCY_POLICY_RESYNC,
+               CONSISTENCY_POLICY_BITMAP,
+               CONSISTENCY_POLICY_JOURNAL,
+               CONSISTENCY_POLICY_PPL,
+       } consistency_policy;
+
        /* During reshape we can sometimes change the data_offset to avoid
         * over-writing still-valid data.  We need to know if there is space.
         * So getinfo_super will fill in space_before and space_after in sectors.
@@ -426,6 +435,7 @@ enum special_options {
        ClusterName,
        ClusterConfirm,
        WriteJournal,
+       ConsistencyPolicy,
 };
 
 enum prefix_standard {
@@ -527,6 +537,7 @@ struct shape {
        int     assume_clean;
        int     write_behind;
        unsigned long long size;
+       int     consistency_policy;
 };
 
 /* List of device names - wildcards expanded */
@@ -618,6 +629,7 @@ enum sysfs_read_flags {
        GET_STATE       = (1 << 23),
        GET_ERROR       = (1 << 24),
        GET_ARRAY_STATE = (1 << 25),
+       GET_CONSISTENCY_POLICY  = (1 << 26),
 };
 
 /* If fd >= 0, get the array it is open on,
@@ -701,7 +713,7 @@ extern int restore_stripes(int *dest, unsigned long long *offsets,
 
 extern char *map_num(mapping_t *map, int num);
 extern int map_name(mapping_t *map, char *name);
-extern mapping_t r5layout[], r6layout[], pers[], modes[], faultylayout[];
+extern mapping_t r5layout[], r6layout[], pers[], modes[], faultylayout[], consistency_policies[];
 
 extern char *map_dev_preferred(int major, int minor, int create,
                               char *prefer);
@@ -863,7 +875,7 @@ extern struct superswitch {
         * metadata.
         */
        int (*init_super)(struct supertype *st, mdu_array_info_t *info,
-                         unsigned long long size, char *name,
+                         struct shape *s, char *name,
                          char *homehost, int *uuid,
                          unsigned long long data_offset);
 
@@ -961,7 +973,7 @@ extern struct superswitch {
                                 int *chunk, unsigned long long size,
                                 unsigned long long data_offset,
                                 char *subdev, unsigned long long *freesize,
-                                int verbose);
+                                int consistency_policy, int verbose);
 
        /* Return a linked list of 'mdinfo' structures for all arrays
         * in the container.  For non-containers, it is like
@@ -1059,6 +1071,9 @@ extern struct superswitch {
        /* validate container after assemble */
        int (*validate_container)(struct mdinfo *info);
 
+       /* write initial empty PPL on device */
+       int (*write_init_ppl)(struct supertype *st, struct mdinfo *info, int fd);
+
        /* records new bad block in metadata */
        int (*record_bad_block)(struct active_array *a, int n,
                                        unsigned long long sector, int length);