History

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.

Christoph Hellwig committed 6 years ago

Commit ecbe6bc1 parent 58e46ed3 files · +10 −9Browse files

Showing the changes to include/linux/blkdev.h (1 of 3 files). Show all

Unified · Split

include/linux/blkdev.h+2−1
@@ -1919,7 +1919,8 @@ int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder); · 1918 unmodified lines
1919struct block_device *blkdev_get_by_path(const char *path, fmode_t mode,1919struct block_device *blkdev_get_by_path(const char *path, fmode_t mode,
1920 void *holder);1920 void *holder);
1921struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode, void *holder);1921struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode, void *holder);
1922struct block_device *bd_start_claiming(struct block_device *bdev, void *holder);1922int bd_prepare_to_claim(struct block_device *bdev, struct block_device *whole,
1923 void *holder);
1923void bd_abort_claiming(struct block_device *bdev, struct block_device *whole,1924void bd_abort_claiming(struct block_device *bdev, struct block_device *whole,
1924 void *holder);1925 void *holder);
1925void blkdev_put(struct block_device *bdev, fmode_t mode);1926void blkdev_put(struct block_device *bdev, fmode_t mode);