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| author | Eric Sandeen <sandeen@redhat.com> | 2015-11-24 17:30:34 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-11-25 20:49:24 -0700 |
| commit | 77032ca66f86fa631b38b2e7feeb2b953e59f2f0 (patch) | |
| tree | c8100aec8d36bd1c5fcbb62d20ece162ef2fe22d /block/partition-generic.c | |
| parent | 78c4a49a69e910a162b05e4e8727b9bdbf948f13 (diff) | |
| download | linux-0-day-77032ca66f86fa631b38b2e7feeb2b953e59f2f0.tar.gz linux-0-day-77032ca66f86fa631b38b2e7feeb2b953e59f2f0.tar.xz | |
Return EBUSY from BLKRRPART for mounted whole-dev fs
Today, blockdev --rereadpt /dev/sda will fail with EBUSY if any
partition of sda is mounted (and will fail with EINVAL if pointed
at a partition). But it will pass if the entire block device is
formatted with a filesystem and mounted. I don't think this makes
sense; partitioning should surely not ever change out from under
a mounted device.
So check for bdev->bd_super, and fail that with -EBUSY as well.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/partition-generic.c')
| -rw-r--r-- | block/partition-generic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/partition-generic.c b/block/partition-generic.c index 3b030157ec85c..746935a5973ca 100644 --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -397,7 +397,7 @@ static int drop_partitions(struct gendisk *disk, struct block_device *bdev) struct hd_struct *part; int res; - if (bdev->bd_part_count) + if (bdev->bd_part_count || bdev->bd_super) return -EBUSY; res = invalidate_partition(disk, 0); if (res) |