2 /* MTD-based superblock management
11 #include <linux/mtd/super.h>
23  * get a superblock on an MTD-backed filesystem
26 		      struct mtd_info *mtd,  in mtd_get_sb()  argument
33 	sb = sget_dev(fc, MKDEV(MTD_BLOCK_MAJOR, mtd->index));  in mtd_get_sb()
40 			 mtd->index, mtd->name);  in mtd_get_sb()
41 		put_mtd_device(mtd);  in mtd_get_sb()
45 			 mtd->index, mtd->name);  in mtd_get_sb()
54 		sb->s_mtd = mtd;  in mtd_get_sb()
74  * get a superblock on an MTD-backed filesystem by MTD device number
80 	struct mtd_info *mtd;  in mtd_get_sb_by_nr()  local
82 	mtd = get_mtd_device(NULL, mtdnr);  in mtd_get_sb_by_nr()
83 	if (IS_ERR(mtd)) {  in mtd_get_sb_by_nr()
85 		return PTR_ERR(mtd);  in mtd_get_sb_by_nr()
88 	return mtd_get_sb(fc, mtd, fill_super);  in mtd_get_sb_by_nr()
92  * get_tree_mtd - Get a superblock based on a single MTD device
112 	 * CONFIG_BLOCK=n - we specify the underlying MTD device by number or  in get_tree_mtd()
120 			struct mtd_info *mtd;  in get_tree_mtd()  local
122 			/* mount by MTD device name */  in get_tree_mtd()
123 			pr_debug("MTDSB: mtd:%%s, name \"%s\"\n",  in get_tree_mtd()
126 			mtd = get_mtd_device_nm(fc->source + 4);  in get_tree_mtd()
127 			if (!IS_ERR(mtd))  in get_tree_mtd()
128 				return mtd_get_sb(fc, mtd, fill_super);  in get_tree_mtd()
130 			errorf(fc, "MTD: MTD device with name \"%s\" not found",  in get_tree_mtd()
134 			/* mount by MTD device number name */  in get_tree_mtd()
140 				pr_debug("MTDSB: mtd%%d, mtdnr %d\n", mtdnr);  in get_tree_mtd()
152 		errorf(fc, "MTD: Couldn't look up '%s': %d", fc->source, ret);  in get_tree_mtd()
163 		errorf(fc, "MTD: Attempt to mount non-MTD device \"%s\"",  in get_tree_mtd()
170  * destroy an MTD-based superblock