Enable create array with write journal (--write-journal DEVICE).

[thirdparty/mdadm.git] / mdadm.h

diff --git a/mdadm.h b/mdadm.h
index efe4778ae4fabc5567137032b966f2c54170563c..0b27b438e8cf40255f279416ec1e84aa9540e697 100644 (file)
--- a/mdadm.h
+++ b/mdadm.h
@@ -180,6 +180,8 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence));
 
 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
 
+extern const char Name[];
+
 /* general information that might be extracted from a superblock */
 struct mdinfo {
        mdu_array_info_t        array;
@@ -258,11 +260,10 @@ struct createinfo {
        int     mode;
        int     symlinks;
        int     names;
+       int     bblist;
        struct supertype *supertype;
 };
 
-#define Name "mdadm"
-
 enum mode {
        ASSEMBLE=1,
        BUILD,
@@ -342,6 +343,11 @@ enum special_options {
        ExamineBB,
        Dump,
        Restore,
+       Action,
+       Nodes,
+       ClusterName,
+       ClusterConfirm,
+       WriteJournal,
 };
 
 enum prefix_standard {
@@ -349,6 +355,12 @@ enum prefix_standard {
        IEC
 };
 
+enum bitmap_update {
+    NoUpdate,
+    NameUpdate,
+    NodeNumUpdate,
+};
+
 /* structures read from config file */
 /* List of mddevice names and identifiers
  * Identifiers can be:
@@ -415,11 +427,15 @@ struct context {
        int     freeze_reshape;
        char    *backup_file;
        int     invalid_backup;
+       char    *action;
+       int     nodes;
+       char    *homecluster;
 };
 
 struct shape {
        int     raiddisks;
        int     sparedisks;
+       int     journaldisks;
        int     level;
        int     layout;
        char    *layout_str;
@@ -450,7 +466,6 @@ typedef struct mapping {
 } mapping_t;
 
 struct mdstat_ent {
-       char            *dev;
        char            devnm[32];
        int             active;
        char            *level;
@@ -488,18 +503,8 @@ extern int map_update(struct map_ent **mpp, char *devnm, char *metadata,
                      int uuid[4], char *path);
 extern void map_remove(struct map_ent **map, char *devnm);
 extern struct map_ent *map_by_uuid(struct map_ent **map, int uuid[4]);
-#ifdef MDASSEMBLE
-static inline struct map_ent *map_by_devnm(struct map_ent **map, char *name)
-{
-       return NULL;
-}
-static inline void map_free(struct map_ent *map)
-{
-}
-#else
 extern struct map_ent *map_by_devnm(struct map_ent **map, char *devnm);
 extern void map_free(struct map_ent *map);
-#endif
 extern struct map_ent *map_by_name(struct map_ent **map, char *name);
 extern void map_read(struct map_ent **melp);
 extern int map_write(struct map_ent *mel);
@@ -536,6 +541,7 @@ enum sysfs_read_flags {
  */
 extern int sysfs_open(char *devnm, char *devname, char *attr);
 extern void sysfs_init(struct mdinfo *mdi, int fd, char *devnm);
+extern void sysfs_init_dev(struct mdinfo *mdi, unsigned long devid);
 extern void sysfs_free(struct mdinfo *sra);
 extern struct mdinfo *sysfs_read(int fd, char *devnm, unsigned long options);
 extern int sysfs_attr_match(const char *attr, const char *str);
@@ -842,7 +848,7 @@ extern struct superswitch {
        /* if add_internal_bitmap succeeded for existing array, this
         * writes it out.
         */
-       int (*write_bitmap)(struct supertype *st, int fd);
+       int (*write_bitmap)(struct supertype *st, int fd, enum bitmap_update update);
        /* Free the superblock and any other allocated data */
        void (*free_super)(struct supertype *st);
 
@@ -927,7 +933,10 @@ extern struct superswitch {
        void (*sync_metadata)(struct supertype *st);
        void (*process_update)(struct supertype *st,
                               struct metadata_update *update);
-       void (*prepare_update)(struct supertype *st,
+       /* Prepare updates allocates extra memory that might be
+        * needed.  If the update cannot be understood,  return 0.
+        */
+       int (*prepare_update)(struct supertype *st,
                               struct metadata_update *update);
 
        /* activate_spare will check if the array is degraded and, if it
@@ -958,6 +967,9 @@ extern struct superswitch {
        /* for external backup area */
        int (*recover_backup)(struct supertype *st, struct mdinfo *info);
 
+       /* validate container after assemble */
+       int (*validate_container)(struct mdinfo *info);
+
        int swapuuid; /* true if uuid is bigending rather than hostendian */
        int external;
        const char *name; /* canonical metadata name */
@@ -1020,6 +1032,8 @@ struct supertype {
                         */
        int devcnt;
        int retry_soon;
+       int nodes;
+       char *cluster_name;
 
        struct mdinfo *devs;
 
@@ -1237,6 +1251,7 @@ extern int Kill_subarray(char *dev, char *subarray, int verbose);
 extern int Update_subarray(char *dev, char *subarray, char *update, struct mddev_ident *ident, int quiet);
 extern int Wait(char *dev);
 extern int WaitClean(char *dev, int sock, int verbose);
+extern int SetAction(char *dev, char *action);
 
 extern int Incremental(struct mddev_dev *devlist, struct context *c,
                       struct supertype *st);
@@ -1265,6 +1280,7 @@ extern int parse_uuid(char *str, int uuid[4]);
 extern int parse_layout_10(char *layout);
 extern int parse_layout_faulty(char *layout);
 extern long parse_num(char *num);
+extern int parse_cluster_confirm_arg(char *inp, char **devname, int *slot);
 extern int check_ext2(int fd, char *name);
 extern int check_reiser(int fd, char *name);
 extern int check_raid(int fd, char *name);
@@ -1273,6 +1289,7 @@ extern int check_partitions(int fd, char *dname,
                            unsigned long long size);
 
 extern int get_mdp_major(void);
+extern int get_maj_min(char *dev, int *major, int *minor);
 extern int dev_open(char *dev, int flags);
 extern int open_dev(char *devnm);
 extern void reopen_mddev(int mdfd);
@@ -1294,6 +1311,7 @@ extern char *conf_get_mailaddr(void);
 extern char *conf_get_mailfrom(void);
 extern char *conf_get_program(void);
 extern char *conf_get_homehost(int *require_homehostp);
+extern char *conf_get_homecluster(void);
 extern char *conf_line(FILE *file);
 extern char *conf_word(FILE *file, int allow_key);
 extern void print_quoted(char *str);
@@ -1402,6 +1420,7 @@ extern char *stat2devnm(struct stat *st);
 extern char *fd2devnm(int fd);
 
 extern int in_initrd(void);
+extern int get_cluster_name(char **name);
 
 #define _ROUND_UP(val, base)   (((val) + (base) - 1) & ~(base - 1))
 #define ROUND_UP(val, base)    _ROUND_UP(val, (typeof(val))(base))
@@ -1429,9 +1448,13 @@ static inline char *to_subarray(struct mdstat_ent *ent, char *container)
 
 #ifdef DEBUG
 #define dprintf(fmt, arg...) \
+       fprintf(stderr, "%s: %s: "fmt, Name, __func__, ##arg)
+#define dprintf_cont(fmt, arg...) \
        fprintf(stderr, fmt, ##arg)
 #else
 #define dprintf(fmt, arg...) \
+        ({ if (0) fprintf(stderr, "%s: %s: " fmt, Name, __func__, ##arg); 0; })
+#define dprintf_cont(fmt, arg...) \
         ({ if (0) fprintf(stderr, fmt, ##arg); 0; })
 #endif
 #include <assert.h>
@@ -1446,7 +1469,11 @@ static inline int xasprintf(char **strp, const char *fmt, ...) {
        return ret;
 }
 
-#define pr_err(fmt ...) fprintf(stderr, Name ": " fmt)
+#ifdef DEBUG
+#define pr_err(fmt, args...) fprintf(stderr, "%s: %s: "fmt, Name, __func__, ##args)
+#else
+#define pr_err(fmt, args...) fprintf(stderr, "%s: "fmt, Name, ##args)
+#endif
 #define cont_err(fmt ...) fprintf(stderr, "       " fmt)
 
 void *xmalloc(size_t len);