mmc: block: Support alternative_gpt_sector() operation

[linux-2.6-microblaze.git] / drivers / mmc / core / block.c

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 4c11f17..6a15fdf 100644 (file)
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -831,6 +831,26 @@ static int mmc_blk_compat_ioctl(struct block_device *bdev, fmode_t mode,
 }
 #endif
 
+static int mmc_blk_alternative_gpt_sector(struct gendisk *disk,
+                                         sector_t *sector)
+{
+       struct mmc_blk_data *md;
+       int ret;
+
+       md = mmc_blk_get(disk);
+       if (!md)
+               return -EINVAL;
+
+       if (md->queue.card)
+               ret = mmc_card_alternative_gpt_sector(md->queue.card, sector);
+       else
+               ret = -ENODEV;
+
+       mmc_blk_put(md);
+
+       return ret;
+}
+
 static const struct block_device_operations mmc_bdops = {
        .open                   = mmc_blk_open,
        .release                = mmc_blk_release,
@@ -840,6 +860,7 @@ static const struct block_device_operations mmc_bdops = {
 #ifdef CONFIG_COMPAT
        .compat_ioctl           = mmc_blk_compat_ioctl,
 #endif
+       .alternative_gpt_sector = mmc_blk_alternative_gpt_sector,
 };
 
 static int mmc_blk_part_switch_pre(struct mmc_card *card,