init: remove the bstat helper

The only caller of the bstat function becomes cleaner and simpler when
open coding the function.

Signed-off-by: Christoph Hellwig <[e-mail]>
Reviewed-by: NeilBrown <[e-mail]>
Acked-by: Song Liu <[e-mail]>
Acked-by: Linus Torvalds <[e-mail]>

init/do_mounts.h

···
 	return ksys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
 }
 
-static inline u32 bstat(char *name)
-{
-	struct kstat stat;
-	if (vfs_stat(name, &stat) != 0)
-		return 0;
-	if (!S_ISBLK(stat.mode))
-		return 0;
-	return stat.rdev;
-}
-
 #ifdef CONFIG_BLK_DEV_RAM
 
 int __init rd_load_disk(int n);

init/do_mounts_md.c

···
 			dev = MKDEV(MD_MAJOR, minor);
 		create_dev(name, dev);
 		for (i = 0; i < MD_SB_DISKS && devname != NULL; i++) {
+			struct kstat stat;
 			char *p;
 			char comp_name[64];
-			u32 rdev;
 
 			p = strchr(devname, ',');
 			if (p)
···
 			if (strncmp(devname, "/dev/", 5) == 0)
 				devname += 5;
 			snprintf(comp_name, 63, "/dev/%s", devname);
-			rdev = bstat(comp_name);
-			if (rdev)
-				dev = new_decode_dev(rdev);
+			if (vfs_stat(comp_name, &stat) == 0 &&
+			    S_ISBLK(stat.mode))
+				dev = new_decode_dev(stat.rdev);
 			if (!dev) {
 				printk(KERN_WARNING "md: Unknown device name: %s\n", devname);
 				break;