[PATCH 01/25] fs: introduce a ->s_cdev field into struct super_block

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There are some filesystems are running on char devs, such
as ubifs. So we need a field in super_block to hold a
reference to the char device.

Signed-off-by: Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx>
---
 include/linux/fs.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 35ec87e..2f1d9499 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1284,6 +1284,7 @@ struct super_block {
 	struct hlist_bl_head	s_anon;		/* anonymous dentries for (nfs) exporting */
 	struct list_head	s_mounts;	/* list of mounts; _not_ for fs use */
 	struct block_device	*s_bdev;
+	struct cdev		*s_cdev;
 	struct backing_dev_info *s_bdi;
 	struct mtd_info		*s_mtd;
 	struct hlist_node	s_instances;
-- 
1.8.4.2

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