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loop: cleanup partitions when detaching loop device

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Any partitions added by user space to the loop device were being
left in place after detaching the loop device.  This was because
the detach path issued a BLKRRPART to clean up partitions if
LO_FLAGS_PARTSCAN was set, meaning that the partitions were auto
scanned on attach.  Replace this BLKRRPART with code that
unconditionally cleans up partitions on detach instead.

Signed-off-by: Phillip Susi <[email protected]>

Modified by Jens to export delete_partition().

Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Phillip Susi 2013-03-22 12:21:53 -06:00 • committed by Jens Axboe
commit 8761a3dc1f
2 changed files with 20 additions and 2 deletions
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1
block/partition-generic.c
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@ -257,6 +257,7 @@ void delete_partition(struct gendisk *disk, int partno)
hd_struct_put(part);
}
EXPORT_SYMBOL(delete_partition);
static ssize_t whole_disk_show(struct device *dev,
struct device_attribute *attr, char *buf)