diff options
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 45 |
1 files changed, 31 insertions, 14 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 9ce87ddf5249..47bcc5081b2b 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -3076,6 +3076,7 @@ struct dm_pr { u64 old_key; u64 new_key; u32 flags; + bool abort; bool fail_early; int ret; enum pr_type type; @@ -3254,25 +3255,41 @@ static int dm_pr_release(struct block_device *bdev, u64 key, enum pr_type type) return pr.ret; } +static int __dm_pr_preempt(struct dm_target *ti, struct dm_dev *dev, + sector_t start, sector_t len, void *data) +{ + struct dm_pr *pr = data; + const struct pr_ops *ops = dev->bdev->bd_disk->fops->pr_ops; + + if (!ops || !ops->pr_preempt) { + pr->ret = -EOPNOTSUPP; + return -1; + } + + pr->ret = ops->pr_preempt(dev->bdev, pr->old_key, pr->new_key, pr->type, + pr->abort); + if (!pr->ret) + return -1; + + return 0; +} + static int dm_pr_preempt(struct block_device *bdev, u64 old_key, u64 new_key, enum pr_type type, bool abort) { - struct mapped_device *md = bdev->bd_disk->private_data; - const struct pr_ops *ops; - int r, srcu_idx; + struct dm_pr pr = { + .new_key = new_key, + .old_key = old_key, + .type = type, + .fail_early = false, + }; + int ret; - r = dm_prepare_ioctl(md, &srcu_idx, &bdev); - if (r < 0) - goto out; + ret = dm_call_pr(bdev, __dm_pr_preempt, &pr); + if (ret) + return ret; - ops = bdev->bd_disk->fops->pr_ops; - if (ops && ops->pr_preempt) - r = ops->pr_preempt(bdev, old_key, new_key, type, abort); - else - r = -EOPNOTSUPP; -out: - dm_unprepare_ioctl(md, srcu_idx); - return r; + return pr.ret; } static int dm_pr_clear(struct block_device *bdev, u64 key) |