[PATCH] fs/*: use BUILD_BUG_ON

Signed-off-by: Alexey Dobriyan <[e-mail]>
Cc: David Woodhouse <[e-mail]>
Cc: David Howells <[e-mail]>
Cc: Mark Fasheh <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

fs/afs/dir.c

···
 {
 	_enter("{%lu}", inode->i_ino);
 
-	BUG_ON(sizeof(union afs_dir_block) != 2048);
-	BUG_ON(sizeof(union afs_dirent) != 32);
+	BUILD_BUG_ON(sizeof(union afs_dir_block) != 2048);
+	BUILD_BUG_ON(sizeof(union afs_dirent) != 32);
 
 	if (AFS_FS_I(inode)->flags & AFS_VNODE_DELETED)
 		return -ENOENT;
···
 	_enter("{%lu},%p{%s}", dir->i_ino, dentry, dentry->d_name.name);
 
 	/* insanity checks first */
-	BUG_ON(sizeof(union afs_dir_block) != 2048);
-	BUG_ON(sizeof(union afs_dirent) != 32);
+	BUILD_BUG_ON(sizeof(union afs_dir_block) != 2048);
+	BUILD_BUG_ON(sizeof(union afs_dirent) != 32);
 
 	if (dentry->d_name.len > 255) {
 		_leave(" = -ENAMETOOLONG");

fs/jffs2/super.c

···
 	   which means just 'no padding', without the alignment
 	   thing. But GCC doesn't have that -- we have to just
 	   hope the structs are the right sizes, instead. */
-	BUG_ON(sizeof(struct jffs2_unknown_node) != 12);
-	BUG_ON(sizeof(struct jffs2_raw_dirent) != 40);
-	BUG_ON(sizeof(struct jffs2_raw_inode) != 68);
-	BUG_ON(sizeof(struct jffs2_raw_summary) != 32);
+	BUILD_BUG_ON(sizeof(struct jffs2_unknown_node) != 12);
+	BUILD_BUG_ON(sizeof(struct jffs2_raw_dirent) != 40);
+	BUILD_BUG_ON(sizeof(struct jffs2_raw_inode) != 68);
+	BUILD_BUG_ON(sizeof(struct jffs2_raw_summary) != 32);
 
 	printk(KERN_INFO "JFFS2 version 2.2."
 #ifdef CONFIG_JFFS2_FS_WRITEBUFFER

fs/minix/inode.c

···
 		return -ENOMEM;
 	s->s_fs_info = sbi;
 
-	/* N.B. These should be compile-time tests.
-	   Unfortunately that is impossible. */
-	if (32 != sizeof (struct minix_inode))
-		panic("bad V1 i-node size");
-	if (64 != sizeof(struct minix2_inode))
-		panic("bad V2 i-node size");
+	BUILD_BUG_ON(32 != sizeof (struct minix_inode));
+	BUILD_BUG_ON(64 != sizeof(struct minix2_inode));
 
 	if (!sb_set_blocksize(s, BLOCK_SIZE))
 		goto out_bad_hblock;

fs/ocfs2/super.c

···
 
 #if BITS_PER_LONG == 32
 # if defined(CONFIG_LBD)
-	BUG_ON(sizeof(sector_t) != 8);
+	BUILD_BUG_ON(sizeof(sector_t) != 8);
 	pagefactor = PAGE_CACHE_SIZE;
 	bitshift = BITS_PER_LONG;
 # else

fs/sysv/super.c

···
 	unsigned long blocknr;
 	int size = 0, i;
 	
-	if (1024 != sizeof (struct xenix_super_block))
-		panic("Xenix FS: bad superblock size");
-	if (512 != sizeof (struct sysv4_super_block))
-		panic("SystemV FS: bad superblock size");
-	if (512 != sizeof (struct sysv2_super_block))
-		panic("SystemV FS: bad superblock size");
-	if (500 != sizeof (struct coh_super_block))
-		panic("Coherent FS: bad superblock size");
-	if (64 != sizeof (struct sysv_inode))
-		panic("sysv fs: bad inode size");
+	BUILD_BUG_ON(1024 != sizeof (struct xenix_super_block));
+	BUILD_BUG_ON(512 != sizeof (struct sysv4_super_block));
+	BUILD_BUG_ON(512 != sizeof (struct sysv2_super_block));
+	BUILD_BUG_ON(500 != sizeof (struct coh_super_block));
+	BUILD_BUG_ON(64 != sizeof (struct sysv_inode));
 
 	sbi = kzalloc(sizeof(struct sysv_sb_info), GFP_KERNEL);
 	if (!sbi)