From 977115c0f664e016a6b2774d4f97116ade23d732 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 26 Nov 2020 10:41:07 +0100 Subject: block: stop using bdget_disk for partition 0 We can just dereference the point in struct gendisk instead. Also remove the now unused export. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Hannes Reinecke Signed-off-by: Jens Axboe --- drivers/md/dm.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) (limited to 'drivers/md/dm.c') diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 176adcff56b3..ed7e836efbcd 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2375,16 +2375,11 @@ out: */ static int lock_fs(struct mapped_device *md) { - struct block_device *bdev; int r; WARN_ON(test_bit(DMF_FROZEN, &md->flags)); - bdev = bdget_disk(md->disk, 0); - if (!bdev) - return -ENOMEM; - r = freeze_bdev(bdev); - bdput(bdev); + r = freeze_bdev(md->disk->part0); if (!r) set_bit(DMF_FROZEN, &md->flags); return r; @@ -2392,16 +2387,9 @@ static int lock_fs(struct mapped_device *md) static void unlock_fs(struct mapped_device *md) { - struct block_device *bdev; - if (!test_bit(DMF_FROZEN, &md->flags)) return; - - bdev = bdget_disk(md->disk, 0); - if (!bdev) - return; - thaw_bdev(bdev); - bdput(bdev); + thaw_bdev(md->disk->part0); clear_bit(DMF_FROZEN, &md->flags); } -- cgit v1.2.3