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| author | Christoph Hellwig <hch@lst.de> | 2020-11-23 13:38:40 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-12-01 22:53:39 +0100 |
| commit | 4e7b5671c6a883d94b5428e1a9c141bbd56cb2a6 (patch) | |
| tree | 862980514dedf92e87aa3ec651f5be306f207390 /drivers/md/dm-table.c | |
| parent | block: opencode devcgroup_inode_permission (diff) | |
| download | linux-4e7b5671c6a883d94b5428e1a9c141bbd56cb2a6.tar.xz linux-4e7b5671c6a883d94b5428e1a9c141bbd56cb2a6.zip | |
block: remove i_bdev
Switch the block device lookup interfaces to directly work with a dev_t
so that struct block_device references are only acquired by the
blkdev_get variants (and the blk-cgroup special case). This means that
we now don't need an extra reference in the inode and can generally
simplify handling of struct block_device to keep the lookups contained
in the core block layer code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Coly Li <colyli@suse.de> [bcache]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/dm-table.c')
| -rw-r--r-- | drivers/md/dm-table.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index ce543b761be7..dea677721710 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -348,16 +348,9 @@ static int upgrade_mode(struct dm_dev_internal *dd, fmode_t new_mode, dev_t dm_get_dev_t(const char *path) { dev_t dev; - struct block_device *bdev; - bdev = lookup_bdev(path); - if (IS_ERR(bdev)) + if (lookup_bdev(path, &dev)) dev = name_to_dev_t(path); - else { - dev = bdev->bd_dev; - bdput(bdev); - } - return dev; } EXPORT_SYMBOL_GPL(dm_get_dev_t); |