From: Colin Cross <ccross@xxxxxxxxxxx>
Set the GENHD_FL_EXT_DEVT flag, which will allocate minor numbers
in major 259 for partitions past disk->minors.
Also remove the use of disk_devt to determine devidx from md->disk.
md->disk->first_minor is always initialized from devidx and can
always be used to recover it.
CC: Chris Ball <cjb@xxxxxxxxxx>
CC: Arnd Bergmann <arnd@xxxxxxxx>
CC: Dima Zavin <dima@xxxxxxxxxxx>
Signed-off-by: Colin Cross <ccross@xxxxxxxxxxx>
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
---
drivers/mmc/card/block.c | 7 ++-----
1 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index edac9ac..f69f948 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -102,11 +102,7 @@ static void mmc_blk_put(struct mmc_blk_data *md)
mutex_lock(&open_lock);
md->usage--;
if (md->usage == 0) {
- int devmaj = MAJOR(disk_devt(md->disk));
- int devidx = MINOR(disk_devt(md->disk)) / perdev_minors;
-
- if (!devmaj)
- devidx = md->disk->first_minor / perdev_minors;
+ int devidx = md->disk->first_minor / perdev_minors;
blk_cleanup_queue(md->queue.queue);
@@ -623,6 +619,7 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card)
md->disk->private_data = md;
md->disk->queue = md->queue.queue;
md->disk->driverfs_dev = &card->dev;
+ md->disk->flags = GENHD_FL_EXT_DEVT;
set_disk_ro(md->disk, md->read_only);
/*
--
1.7.3.2.146.gca209
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