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OpenCloudOS-Kernel
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loop: Properly clear sysfs in autoclear mode 

In autoclear mode bdev is NULL but the sysfs
entry should be destroyed otherwise this warning appears:

WARNING: at fs/sysfs/dir.c:451 sysfs_add_one+0x82/0x95()
sysfs: cannot create duplicate filename '/devices/virtual/block/loop0/loop'

Fixes commit ee86273062

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Milan Broz 2010-10-27 19:51:30 -06:00 committed by Jens Axboe
parent 12ba8d1e92
commit 51a0bb0c2e
1 changed files with 1 additions and 1 deletions
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2
drivers/block/loop.c
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@ -1049,9 +1049,9 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev)
if (bdev)
invalidate_bdev(bdev);
set_capacity(lo->lo_disk, 0);
loop_sysfs_exit(lo);
if (bdev) {
bd_set_size(bdev, 0);
loop_sysfs_exit(lo);
/* let user-space know about this change */
kobject_uevent(&disk_to_dev(bdev->bd_disk)->kobj, KOBJ_CHANGE);
}