imsm: assemble container support

From: Dan Williams <dan.j.williams@intel.com>

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/super-intel.c b/super-intel.c
index 948c6b30e8b9bc0e60e5ab6b35c724fcf2d81022..fd1c3dcd8df5954ed69c6d1a3f88a8fc33cd40d4 100644 (file)
--- a/super-intel.c
+++ b/super-intel.c
@@ -443,7 +443,45 @@ static int update_super_imsm(struct supertype *st, struct mdinfo *info,
                             char *update, char *devname, int verbose,
                             int uuid_set, char *homehost)
 {
-       return 0;
+       /* FIXME */
+
+       /* For 'assemble' and 'force' we need to return non-zero if any
+        * change was made.  For others, the return value is ignored.
+        * Update options are:
+        *  force-one : This device looks a bit old but needs to be included,
+        *        update age info appropriately.
+        *  assemble: clear any 'faulty' flag to allow this device to
+        *              be assembled.
+        *  force-array: Array is degraded but being forced, mark it clean
+        *         if that will be needed to assemble it.
+        *
+        *  newdev:  not used ????
+        *  grow:  Array has gained a new device - this is currently for
+        *              linear only
+        *  resync: mark as dirty so a resync will happen.
+        *  name:  update the name - preserving the homehost
+        *
+        * Following are not relevant for this imsm:
+        *  sparc2.2 : update from old dodgey metadata
+        *  super-minor: change the preferred_minor number
+        *  summaries:  update redundant counters.
+        *  uuid:  Change the uuid of the array to match watch is given
+        *  homehost:  update the recorded homehost
+        *  _reshape_progress: record new reshape_progress position.
+        */
+       int rv = 0;
+       //struct intel_super *super = st->sb;
+       //struct imsm_super *mpb = super->mpb;
+
+       if (strcmp(update, "grow") == 0) {
+       }
+       if (strcmp(update, "resync") == 0) {
+               /* dev->vol.dirty = 1; */
+       }
+
+       /* IMSM has no concept of UUID or homehost */
+
+       return rv;
 }
 
 static __u64 avail_size_imsm(struct supertype *st, __u64 size)
@@ -904,9 +942,18 @@ static int store_zero_imsm(struct supertype *st, int fd)
        return 0;
 }
 
-static void getinfo_super_n_container(struct supertype *st, struct mdinfo *info)
+static void getinfo_super_n_imsm_container(struct supertype *st, struct mdinfo *info)
 {
-       printf("%s\n", __FUNCTION__);
+       /* just need offset and size...
+        * of the metadata??
+        */
+       struct intel_super *super = st->sb;
+       struct imsm_super *mpb = super->mpb;
+       struct imsm_disk *disk = get_imsm_disk(mpb, info->disk.number);
+       int sect = mpb_sectors(mpb);
+
+       info->data_offset = __le32_to_cpu(disk->total_blocks) - (2 + sect - 1);
+       info->component_size = sect;
 }
 
 static void getinfo_super_n_raid(struct supertype *st, struct mdinfo *info)
@@ -973,7 +1020,7 @@ struct superswitch super_imsm = {
        .store_super    = store_zero_imsm,
        .free_super     = free_super_imsm,
        .match_metadata_desc = match_metadata_desc_imsm,
-       .getinfo_super_n  = getinfo_super_n_container,
+       .getinfo_super_n  = getinfo_super_n_imsm_container,
 
        .validate_geometry = validate_geometry_imsm,
        .major          = 2000,
@@ -992,7 +1039,7 @@ struct superswitch super_imsm_container = {
        .add_to_super   = add_to_super_imsm,
        .write_init_super = write_init_super_imsm,
        .getinfo_super  = getinfo_super_imsm,
-       .getinfo_super_n  = getinfo_super_n_container,
+       .getinfo_super_n  = getinfo_super_n_imsm_container,
        .load_super     = load_super_imsm,
 
 #ifndef MDASSEMBLE