diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-16 17:33:09 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-07-16 18:35:44 +0300 |
| commit | ecbe6bc0003bfd5bf8581cb679cae0eb944432cb (patch) | |
| tree | 5006b0a7baecfb91cdcdb8ccc8a033e6ba02ba49 /drivers/block | |
| parent | 58e46ed9cc634b3c64ea402789f8a92ce45cee48 (diff) | |
| download | linux-ecbe6bc0003bfd5bf8581cb679cae0eb944432cb.tar.xz | |
block: use bd_prepare_to_claim directly in the loop driver
The arcane magic in bd_start_claiming is only needed to be able to claim
a block_device that hasn't been fully set up. Switch the loop driver
that claims from the ioctl path with a fully set up struct block_device
to just use the much simpler bd_prepare_to_claim directly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/loop.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index a943207705dd..d18160146226 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1090,11 +1090,10 @@ static int loop_configure(struct loop_device *lo, fmode_t mode, * here to avoid changing device under exclusive owner. */ if (!(mode & FMODE_EXCL)) { - claimed_bdev = bd_start_claiming(bdev, loop_configure); - if (IS_ERR(claimed_bdev)) { - error = PTR_ERR(claimed_bdev); + claimed_bdev = bdev->bd_contains; + error = bd_prepare_to_claim(bdev, claimed_bdev, loop_configure); + if (error) goto out_putf; - } } error = mutex_lock_killable(&loop_ctl_mutex); |