Support external metadata recovery-resume

[thirdparty/mdadm.git] / sysfs.c

diff --git a/sysfs.c b/sysfs.c
index 8fdb52998409303e3874f84b6fe5a1eea8820aee..c3bbbe32b1fca1ff0a4a6a02a339aafa20cd3632 100644 (file)
--- a/sysfs.c
+++ b/sysfs.c
@@ -572,7 +572,7 @@ int sysfs_set_array(struct mdinfo *info, int vers)
        return rv;
 }
 
        return rv;
 }
 

-int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd)
+int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd, int resume)

 {
        char dv[100];
        char nm[100];
 {
        char dv[100];
        char nm[100];


@@ -595,6 +595,13 @@ int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd)
        strcpy(sd->sys_name, "dev-");
        strcpy(sd->sys_name+4, dname);
 
        strcpy(sd->sys_name, "dev-");
        strcpy(sd->sys_name+4, dname);
 

+       /* test write to see if 'recovery_start' is available */
+       if (resume && sd->recovery_start < MaxSector &&
+           sysfs_set_num(sra, sd, "recovery_start", 0)) {
+               sysfs_set_str(sra, sd, "state", "remove");
+               return -1;
+       }
+

        rv = sysfs_set_num(sra, sd, "offset", sd->data_offset);
        rv |= sysfs_set_num(sra, sd, "size", (sd->component_size+1) / 2);
        if (sra->array.level != LEVEL_CONTAINER) {
        rv = sysfs_set_num(sra, sd, "offset", sd->data_offset);
        rv |= sysfs_set_num(sra, sd, "size", (sd->component_size+1) / 2);
        if (sra->array.level != LEVEL_CONTAINER) {


@@ -604,6 +611,8 @@ int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd)
                         */
                        sysfs_set_str(sra, sd, "state", "insync");
                rv |= sysfs_set_num(sra, sd, "slot", sd->disk.raid_disk);
                         */
                        sysfs_set_str(sra, sd, "state", "insync");
                rv |= sysfs_set_num(sra, sd, "slot", sd->disk.raid_disk);

+               if (resume)
+                       sysfs_set_num(sra, sd, "recovery_start", sd->recovery_start);

        }
        return rv;
 }
        }
        return rv;
 }