[PATCH] fs/*: use BUILD_BUG_ON

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

5 files changed, 16 insertions, 25 deletions

diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index cf8a2cb28505..a6ec75c56fcf 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -211,8 +211,8 @@ static int afs_dir_open(struct inode *inode, struct file *file)
 {
         _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;
@@ -446,8 +446,8 @@ static struct dentry *afs_dir_lookup(struct inode *dir, struct dentry *dentry,
         _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");
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 6de374513c01..bc4b8106a490 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -334,10 +334,10 @@ static int __init init_jffs2_fs(void)
            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
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index c11a4b9fb863..1e36bae4d0eb 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -149,12 +149,8 @@ static int minix_fill_super(struct super_block *s, void *data, int silent)
                 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;
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 4c29cd7cc8e6..76b46ebbb10c 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -339,7 +339,7 @@ static unsigned long long ocfs2_max_file_offset(unsigned int blockshift)
 
 #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
diff --git a/fs/sysv/super.c b/fs/sysv/super.c
index 350cba5d6803..dc9e7dc07fb7 100644
--- a/fs/sysv/super.c
+++ b/fs/sysv/super.c
@@ -358,16 +358,11 @@ static int sysv_fill_super(struct super_block *sb, void *data, int silent)
         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)