keep member disk fd(s) for updates

[thirdparty/mdadm.git] / mdadm.h

diff --git a/mdadm.h b/mdadm.h
index 176d1c30319346936ba11230dc53a42132222665..f3b4ec27cc98c64a48e37a4eca529a84cdc3b3aa 100644 (file)
--- a/mdadm.h
+++ b/mdadm.h
@@ -76,6 +76,7 @@ extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence));
 #include       "md_u.h"
 #include       "md_p.h"
 #include       "bitmap.h"
+#include       "msg.h"
 
 #include <endian.h>
 /* Redhat don't like to #include <asm/byteorder.h>, and
@@ -158,6 +159,11 @@ struct mdinfo {
        char            sys_name[20];
        struct mdinfo *devs;
        struct mdinfo *next;
+
+       /* Device info for mdmon: */
+       int state_fd;
+       int prev_state, curr_state, next_state;
+
 };
 
 struct createinfo {
@@ -270,12 +276,17 @@ struct mdstat_ent {
        char            *pattern; /* U or up, _ for down */
        int             percent; /* -1 if no resync */
        int             resync; /* 1 if resync, 0 if recovery */
+       int             devcnt;
+       int             raid_disks;
+       int             chunk_size;
+       char *          metadata_version;
        struct mdstat_ent *next;
 };
 
 extern struct mdstat_ent *mdstat_read(int hold, int start);
 extern void free_mdstat(struct mdstat_ent *ms);
 extern void mdstat_wait(int seconds);
+extern void mdstat_wait_fd(int fd);
 extern int mddev_busy(int devnum);
 
 struct map_ent {
@@ -303,6 +314,7 @@ extern void map_add(struct map_ent **melp,
 #define GET_CACHE      16
 #define        GET_MISMATCH    32
 #define        GET_VERSION     64
+#define        GET_DISKS       128
 
 #define        GET_DEVS        1024 /* gets role, major, minor */
 #define        GET_OFFSET      2048
@@ -313,6 +325,7 @@ extern void map_add(struct map_ent **melp,
 /* If fd >= 0, get the array it is open on,
  * else use devnum. >=0 -> major9. <0.....
  */
+extern int sysfs_open(int devnum, char *devname, char *attr);
 extern void sysfs_free(struct mdinfo *sra);
 extern struct mdinfo *sysfs_read(int fd, int devnum, unsigned long options);
 extern int sysfs_set_str(struct mdinfo *sra, struct mdinfo *dev,
@@ -349,6 +362,7 @@ extern mapping_t r5layout[], pers[], modes[], faultylayout[];
 
 extern char *map_dev(int major, int minor, int create);
 
+struct active_array;
 
 extern struct superswitch {
        void (*examine_super)(struct supertype *st, char *homehost);
@@ -389,6 +403,15 @@ extern struct superswitch {
 
        struct mdinfo *(*container_content)(struct supertype *st);
 
+/* for mdmon */
+       int (*open_new)(struct supertype *c, struct active_array *a, int inst);
+       void (*mark_clean)(struct active_array *a, unsigned long long sync_pos);
+       void (*mark_dirty)(struct active_array *a);
+       void (*mark_sync)(struct active_array *a, unsigned long long resync);
+       void (*set_disk)(struct active_array *a, int n);
+       void (*sync_metadata)(struct active_array *a);
+
+
        int major;
        char *text_version;
        int swapuuid; /* true if uuid is bigending rather than hostendian */
@@ -405,8 +428,23 @@ struct supertype {
        int container_member; /* numerical position in container */
        void *sb;
        void *info;
+
+       /* extra stuff used by mdmon */
+       struct active_array *arrays;
+       int devfd;
+       int sock; /* listen to external programs */
+       int pipe[2]; /* communicate between threads */
+       int devnum;
+       char *devname; /* e.g. md0.  This appears in metadata_verison:
+                       *  external:/md0/12
+                       */
+       int devcnt;
+
+       struct mdinfo *devs;
+
 };
 
+extern struct supertype supertype_container_member;
 extern struct supertype *super_by_fd(int fd);
 extern struct supertype *guess_super(int fd);
 extern struct supertype *dup_super(struct supertype *st);