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| author | Christoph Hellwig <hch@lst.de> | 2020-09-25 18:06:18 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-10-05 10:38:33 -0600 |
| commit | 10ed16662da9e28a33b6c991c36c6b323b03dd5b (patch) | |
| tree | 18e9b39f3f6eb5528a33567258782a20c96384c0 /fs/block_dev.c | |
| parent | 155bd9d1abd60497f3e84ef3251b40209f7f7900 (diff) | |
| download | linux-10ed16662da9e28a33b6c991c36c6b323b03dd5b.tar.gz linux-10ed16662da9e28a33b6c991c36c6b323b03dd5b.tar.bz2 linux-10ed16662da9e28a33b6c991c36c6b323b03dd5b.zip | |
block: add a bdget_part helper
All remaining callers of bdget() outside of fs/block_dev.c want to get a
reference to the struct block_device for a given struct hd_struct. Add
a helper just for that and then mark bdget static.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 6b9d19ffa5af..9e84b1928b94 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -891,7 +891,7 @@ static int bdev_set(struct inode *inode, void *data) return 0; } -struct block_device *bdget(dev_t dev) +static struct block_device *bdget(dev_t dev) { struct block_device *bdev; struct inode *inode; @@ -920,8 +920,6 @@ struct block_device *bdget(dev_t dev) return bdev; } -EXPORT_SYMBOL(bdget); - /** * bdgrab -- Grab a reference to an already referenced block device * @bdev: Block device to grab a reference to. @@ -933,6 +931,11 @@ struct block_device *bdgrab(struct block_device *bdev) } EXPORT_SYMBOL(bdgrab); +struct block_device *bdget_part(struct hd_struct *part) +{ + return bdget(part_devt(part)); +} + long nr_blockdev_pages(void) { struct inode *inode; |