Manage, imsm: Write metadata before add

[thirdparty/mdadm.git] / super-intel.c

diff --git a/super-intel.c b/super-intel.c
index 562a58cc8ff1f050493e3852e6875a3b0f0da3ec..3a73d2b35bee18ff5e9f0041d977c586f5f81ff4 100644 (file)
--- a/super-intel.c
+++ b/super-intel.c
@@ -5809,6 +5809,9 @@ int mark_spare(struct dl *disk)
        return ret_val;
 }
 
+
+static int write_super_imsm_spare(struct intel_super *super, struct dl *d);
+
 static int add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk,
                             int fd, char *devname,
                             unsigned long long data_offset)
@@ -5938,9 +5941,13 @@ static int add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk,
                dd->next = super->disk_mgmt_list;
                super->disk_mgmt_list = dd;
        } else {
+               /* this is called outside of mdmon
+                * write initial spare metadata
+                * mdmon will overwrite it.
+                */
                dd->next = super->disks;
                super->disks = dd;
-               super->updates_pending++;
+               write_super_imsm_spare(super, dd);
        }
 
        return 0;
@@ -5979,15 +5986,15 @@ static union {
        struct imsm_super anchor;
 } spare_record __attribute__ ((aligned(MAX_SECTOR_SIZE)));
 
-/* spare records have their own family number and do not have any defined raid
- * devices
- */
-static int write_super_imsm_spares(struct intel_super *super, int doclose)
+
+static int write_super_imsm_spare(struct intel_super *super, struct dl *d)
 {
        struct imsm_super *mpb = super->anchor;
        struct imsm_super *spare = &spare_record.anchor;
        __u32 sum;
-       struct dl *d;
+
+       if (d->index != -1)
+               return 1;
 
        spare->mpb_size = __cpu_to_le32(sizeof(struct imsm_super));
        spare->generation_num = __cpu_to_le32(1UL);
@@ -6000,28 +6007,41 @@ static int write_super_imsm_spares(struct intel_super *super, int doclose)
        snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH,
                 MPB_SIGNATURE MPB_VERSION_RAID0);
 
-       for (d = super->disks; d; d = d->next) {
-               if (d->index != -1)
-                       continue;
+       spare->disk[0] = d->disk;
+       if (__le32_to_cpu(d->disk.total_blocks_hi) > 0)
+               spare->attributes |= MPB_ATTRIB_2TB_DISK;
 
-               spare->disk[0] = d->disk;
-               if (__le32_to_cpu(d->disk.total_blocks_hi) > 0)
-                       spare->attributes |= MPB_ATTRIB_2TB_DISK;
+       if (super->sector_size == 4096)
+               convert_to_4k_imsm_disk(&spare->disk[0]);
 
-               if (super->sector_size == 4096)
-                       convert_to_4k_imsm_disk(&spare->disk[0]);
+       sum = __gen_imsm_checksum(spare);
+       spare->family_num = __cpu_to_le32(sum);
+       spare->orig_family_num = 0;
+       sum = __gen_imsm_checksum(spare);
+       spare->check_sum = __cpu_to_le32(sum);
 
-               sum = __gen_imsm_checksum(spare);
-               spare->family_num = __cpu_to_le32(sum);
-               spare->orig_family_num = 0;
-               sum = __gen_imsm_checksum(spare);
-               spare->check_sum = __cpu_to_le32(sum);
+       if (store_imsm_mpb(d->fd, spare)) {
+               pr_err("failed for device %d:%d %s\n",
+                       d->major, d->minor, strerror(errno));
+               return 1;
+       }
+
+       return 0;
+}
+/* spare records have their own family number and do not have any defined raid
+ * devices
+ */
+static int write_super_imsm_spares(struct intel_super *super, int doclose)
+{
+       struct dl *d;
+
+       for (d = super->disks; d; d = d->next) {
+               if (d->index != -1)
+                       continue;
 
-               if (store_imsm_mpb(d->fd, spare)) {
-                       pr_err("failed for device %d:%d %s\n",
-                               d->major, d->minor, strerror(errno));
+               if (write_super_imsm_spare(super, d))
                        return 1;
-               }
+
                if (doclose) {
                        close(d->fd);
                        d->fd = -1;