[GFS2] Tidy up in various files

Tidy up some files and remove an unused routine in meta_io.h. Also
added a bit of extra debugging in meta_io.h.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/gfs2/inode.c

@@ -277,8 +277,7 @@ int gfs2_dinode_dealloc(struct gfs2_inode *ip)
 	if (error)
 		goto out_rindex_relse;
 
-	error = gfs2_trans_begin(sdp, RES_RG_BIT + 
-				 RES_STATFS + RES_QUOTA, 1);
+	error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS + RES_QUOTA, 1);
 	if (error)
 		goto out_rg_gunlock;
 
@@ -524,14 +523,11 @@ static int pick_formal_ino_2(struct gfs2_sbd *sdp, uint64_t *formal_ino)
 
 out_brelse:
 	brelse(bh);
-
 out_end_trans:
 	mutex_unlock(&sdp->sd_inum_mutex);
 	gfs2_trans_end(sdp);
-
 out:
 	gfs2_glock_dq_uninit(&gh);
-
 	return error;
 }
 
@@ -593,8 +589,7 @@ static void munge_mode_uid_gid(struct gfs2_inode *dip, unsigned int *mode,
 			       unsigned int *uid, unsigned int *gid)
 {
 	if (GFS2_SB(&dip->i_inode)->sd_args.ar_suiddir &&
-	    (dip->i_di.di_mode & S_ISUID) &&
-	    dip->i_di.di_uid) {
+	    (dip->i_di.di_mode & S_ISUID) && dip->i_di.di_uid) {
 		if (S_ISDIR(*mode))
 			*mode |= S_ISUID;
 		else if (dip->i_di.di_uid != current->fsuid)
@@ -634,10 +629,8 @@ static int alloc_dinode(struct gfs2_inode *dip, struct gfs2_inum *inum,
 
 out_ipreserv:
 	gfs2_inplace_release(dip);
-
 out:
 	gfs2_alloc_put(dip);
-
 	return error;
 }
 
@@ -1300,7 +1293,6 @@ int gfs2_glock_nq_m_atime(unsigned int num_gh, struct gfs2_holder *ghs)
 	}
 
 	kfree(p);
-
 	return error;
 }
 
@@ -1346,9 +1338,7 @@ int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)
 		return error;
 
 	error = __gfs2_setattr_simple(ip, attr);
-
 	gfs2_trans_end(GFS2_SB(&ip->i_inode));
-
 	return error;
 }
 

fs/gfs2/meta_io.h

@@ -17,35 +17,20 @@ static inline void gfs2_buffer_clear(struct buffer_head *bh)
 
 static inline void gfs2_buffer_clear_tail(struct buffer_head *bh, int head)
 {
+	BUG_ON(head > bh->b_size);
 	memset(bh->b_data + head, 0, bh->b_size - head);
 }
 
-static inline void gfs2_buffer_clear_ends(struct buffer_head *bh, int offset,
-					  int amount, int journaled)
-{
-	int z_off1 = (journaled) ? sizeof(struct gfs2_meta_header) : 0;
-	int z_len1 = offset - z_off1;
-	int z_off2 = offset + amount;
-	int z_len2 = (bh)->b_size - z_off2;
-
-	if (z_len1)
-		memset(bh->b_data + z_off1, 0, z_len1);
-
-	if (z_len2)
-		memset(bh->b_data + z_off2, 0, z_len2);
-}
-
 static inline void gfs2_buffer_copy_tail(struct buffer_head *to_bh,
 					 int to_head,
 					 struct buffer_head *from_bh,
 					 int from_head)
 {
-	memcpy(to_bh->b_data + to_head,
-	       from_bh->b_data + from_head,
+	BUG_ON(from_head < to_head);
+	memcpy(to_bh->b_data + to_head, from_bh->b_data + from_head,
 	       from_bh->b_size - from_head);
 	memset(to_bh->b_data + to_bh->b_size + to_head - from_head,
-	       0,
-	       from_head - to_head);
+	       0, from_head - to_head);
 }
 
 struct inode *gfs2_aspace_get(struct gfs2_sbd *sdp);

fs/gfs2/ops_file.c

@@ -599,11 +599,9 @@ static int gfs2_open(struct inode *inode, struct file *file)
 
 fail_gunlock:
 	gfs2_glock_dq_uninit(&i_gh);
-
 fail:
 	file->private_data = NULL;
 	kfree(fp);
-
 	return error;
 }
 
@@ -738,7 +736,6 @@ static int do_flock(struct file *file, int cmd, struct file_lock *fl)
 
 out:
 	mutex_unlock(&fp->f_fl_mutex);
-
 	return error;
 }