imsm: provide list of bad blocks for an array

Provide list of bad blocks using memory allocated in advance so it's
safe to call it from monitor.

Signed-off-by: Tomasz Majchrzak <tomasz.majchrzak@intel.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>

diff --git a/super-intel.c b/super-intel.c
index 0562a557df91db8fbc664daba6727b750592501c..f4cb89cb66c64fc85c8b39444be5bcdd1778295e 100644 (file)
--- a/super-intel.c
+++ b/super-intel.c
@@ -393,6 +393,7 @@ struct intel_super {
        struct intel_hba *hba; /* device path of the raid controller for this metadata */
        const struct imsm_orom *orom; /* platform firmware support */
        struct intel_super *next; /* (temp) list for disambiguating family_num */
+       struct md_bb bb;        /* memory for get_bad_blocks call */
 };
 
 struct intel_disk {
@@ -4283,6 +4284,7 @@ static void __free_imsm(struct intel_super *super, int free_disks)
 static void free_imsm(struct intel_super *super)
 {
        __free_imsm(super, 1);
+       free(super->bb.entries);
        free(super);
 }
 
@@ -4303,6 +4305,14 @@ static struct intel_super *alloc_super(void)
 
        super->current_vol = -1;
        super->create_offset = ~((unsigned long long) 0);
+
+       super->bb.entries = xmalloc(BBM_LOG_MAX_ENTRIES *
+                                  sizeof(struct md_bb_entry));
+       if (!super->bb.entries) {
+               free(super);
+               return NULL;
+       }
+
        return super;
 }
 
@@ -9881,6 +9891,34 @@ static int imsm_clear_badblock(struct active_array *a, int slot,
 
        return ret;
 }
+/*******************************************************************************
+* Function:   imsm_get_badblocks
+* Description: This routine get list of bad blocks for an array
+*
+* Parameters:
+*     a                : array
+*     slot     : disk number
+* Returns:
+*     bb       : structure containing bad blocks
+*     NULL     : error
+******************************************************************************/
+static struct md_bb *imsm_get_badblocks(struct active_array *a, int slot)
+{
+       int inst = a->info.container_member;
+       struct intel_super *super = a->container->sb;
+       struct imsm_dev *dev = get_imsm_dev(super, inst);
+       struct imsm_map *map = get_imsm_map(dev, MAP_0);
+       int ord;
+
+       ord = imsm_disk_slot_to_ord(a, slot);
+       if (ord < 0)
+               return NULL;
+
+       get_volume_badblocks(super->bbm_log, ord_to_idx(ord), pba_of_lba0(map),
+                            blocks_per_member(map), &super->bb);
+
+       return &super->bb;
+}
 /*******************************************************************************
  * Function:   init_migr_record_imsm
  * Description:        Function inits imsm migration record
@@ -11436,5 +11474,6 @@ struct superswitch super_imsm = {
        .prepare_update = imsm_prepare_update,
        .record_bad_block = imsm_record_badblock,
        .clear_bad_block  = imsm_clear_badblock,
+       .get_bad_blocks   = imsm_get_badblocks,
 #endif /* MDASSEMBLE */
 };