diff mbox series

block: Add a check for fdisk

Message ID 1535620287-27189-1-git-send-email-suhua.tanke@gmail.com (mailing list archive)
State New, archived
Headers show
Series block: Add a check for fdisk | expand

Commit Message

Hua Su Aug. 30, 2018, 9:11 a.m. UTC 
When a block device is acquired in the form of FMODE_EXCL, I think it
should not be allowed to perform partition operations, similar to when
mount is executed.

Signed-off-by: Su Hua <suhua.tanke@gmail.com>
---
 block/partition-generic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/block/partition-generic.c b/block/partition-generic.c
index 5a8975a..a8daa31 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -440,7 +440,7 @@  static int drop_partitions(struct gendisk *disk, struct block_device *bdev)
 	struct hd_struct *part;
 	int res;
 
-	if (bdev->bd_part_count || bdev->bd_super)
+	if (bdev->bd_part_count || bdev->bd_super || bdev->bd_holders)
 		return -EBUSY;
 	res = invalidate_partition(disk, 0);
 	if (res)