From fa01b1e9733fd59ecb8b5b6d85dfb481d2025fbf Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 3 Sep 2020 07:40:57 +0200 Subject: block: add a bdev_is_partition helper Add a littler helper to make the somewhat arcane bd_contains checks a little more obvious. Signed-off-by: Christoph Hellwig Acked-by: Ulf Hansson Signed-off-by: Jens Axboe --- drivers/mmc/core/block.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mmc/core') diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index fa313b634135..8d3df0be0355 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -723,7 +723,7 @@ static int mmc_blk_check_blkdev(struct block_device *bdev) * whole block device, not on a partition. This prevents overspray * between sibling partitions. */ - if ((!capable(CAP_SYS_RAWIO)) || (bdev != bdev->bd_contains)) + if (!capable(CAP_SYS_RAWIO) || bdev_is_partition(bdev)) return -EPERM; return 0; } -- cgit v1.2.3-70-g09d2