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authorChristoph Hellwig <hch@lst.de>2020-09-25 19:06:18 +0300
committerJens Axboe <axboe@kernel.dk>2020-10-05 19:38:33 +0300
commit10ed16662da9e28a33b6c991c36c6b323b03dd5b (patch)
tree18e9b39f3f6eb5528a33567258782a20c96384c0 /fs/block_dev.c
parent155bd9d1abd60497f3e84ef3251b40209f7f7900 (diff)
downloadlinux-10ed16662da9e28a33b6c991c36c6b323b03dd5b.tar.xz
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.c9
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;