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authorYu Kuai <yukuai3@huawei.com>2024-04-11 15:53:43 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2024-05-03 02:36:21 -0400
commit186ddac2072a8134798d72635d1ed0f29889369d (patch)
treedea5241d30fe11c82af0b94dcd4986503091a577 /block
parentc9600c63a694249100e2bdcbb604c30d8fee2dc7 (diff)
block: move two helpers into bdev.c
disk_live() and block_size() access bd_inode directly, prepare to remove the field bd_inode from block_device, and only access bd_inode in block layer. Signed-off-by: Yu Kuai <yukuai3@huawei.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Link: https://lore.kernel.org/r/20240411145346.2516848-8-viro@zeniv.linux.org.uk Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'block')
-rw-r--r--block/bdev.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/block/bdev.c b/block/bdev.c
index a89bce368b64..536233ac3e99 100644
--- a/block/bdev.c
+++ b/block/bdev.c
@@ -1257,6 +1257,18 @@ void bdev_statx_dioalign(struct inode *inode, struct kstat *stat)
blkdev_put_no_open(bdev);
}
+bool disk_live(struct gendisk *disk)
+{
+ return !inode_unhashed(disk->part0->bd_inode);
+}
+EXPORT_SYMBOL_GPL(disk_live);
+
+unsigned int block_size(struct block_device *bdev)
+{
+ return 1 << bdev->bd_inode->i_blkbits;
+}
+EXPORT_SYMBOL_GPL(block_size);
+
static int __init setup_bdev_allow_write_mounted(char *str)
{
if (kstrtobool(str, &bdev_allow_write_mounted))