[PATCH] ext4: if expression format

changes instances of
	if ((lhs = expression)) {

to the preferred coding style

	lhs=expression;
	if (lhs) {

Signed-off-by: Avantika Mathur <mathur@us.ibm.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/ext4/extents.c

@@ -186,7 +186,8 @@ static ext4_fsblk_t ext4_ext_find_goal(struct inode *inode,
 		depth = path->p_depth;
 
 		/* try to predict block placement */
-		if ((ex = path[depth].p_ext))
+		ex = path[depth].p_ext;
+		if (ex)
 			return ext_pblock(ex)+(block-le32_to_cpu(ex->ee_block));
 
 		/* it looks like index is empty;
@@ -543,7 +544,8 @@ static int ext4_ext_insert_index(handle_t *handle, struct inode *inode,
 	struct ext4_extent_idx *ix;
 	int len, err;
 
-	if ((err = ext4_ext_get_access(handle, inode, curp)))
+	err = ext4_ext_get_access(handle, inode, curp);
+	if (err)
 		return err;
 
 	BUG_ON(logical == le32_to_cpu(curp->p_idx->ei_block));
@@ -665,7 +667,8 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
 	}
 	lock_buffer(bh);
 
-	if ((err = ext4_journal_get_create_access(handle, bh)))
+	err = ext4_journal_get_create_access(handle, bh);
+	if (err)
 		goto cleanup;
 
 	neh = ext_block_hdr(bh);
@@ -702,18 +705,21 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
 	set_buffer_uptodate(bh);
 	unlock_buffer(bh);
 
-	if ((err = ext4_journal_dirty_metadata(handle, bh)))
+	err = ext4_journal_dirty_metadata(handle, bh);
+	if (err)
 		goto cleanup;
 	brelse(bh);
 	bh = NULL;
 
 	/* correct old leaf */
 	if (m) {
-		if ((err = ext4_ext_get_access(handle, inode, path + depth)))
+		err = ext4_ext_get_access(handle, inode, path + depth);
+		if (err)
 			goto cleanup;
 		path[depth].p_hdr->eh_entries =
 		     cpu_to_le16(le16_to_cpu(path[depth].p_hdr->eh_entries)-m);
-		if ((err = ext4_ext_dirty(handle, inode, path + depth)))
+		err = ext4_ext_dirty(handle, inode, path + depth);
+		if (err)
 			goto cleanup;
 
 	}
@@ -736,7 +742,8 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
 		}
 		lock_buffer(bh);
 
-		if ((err = ext4_journal_get_create_access(handle, bh)))
+		err = ext4_journal_get_create_access(handle, bh);
+		if (err)
 			goto cleanup;
 
 		neh = ext_block_hdr(bh);
@@ -780,7 +787,8 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode,
 		set_buffer_uptodate(bh);
 		unlock_buffer(bh);
 
-		if ((err = ext4_journal_dirty_metadata(handle, bh)))
+		err = ext4_journal_dirty_metadata(handle, bh);
+		if (err)
 			goto cleanup;
 		brelse(bh);
 		bh = NULL;
@@ -854,7 +862,8 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
 	}
 	lock_buffer(bh);
 
-	if ((err = ext4_journal_get_create_access(handle, bh))) {
+	err = ext4_journal_get_create_access(handle, bh);
+	if (err) {
 		unlock_buffer(bh);
 		goto out;
 	}
@@ -874,11 +883,13 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
 	set_buffer_uptodate(bh);
 	unlock_buffer(bh);
 
-	if ((err = ext4_journal_dirty_metadata(handle, bh)))
+	err = ext4_journal_dirty_metadata(handle, bh);
+	if (err)
 		goto out;
 
 	/* create index in new top-level index: num,max,pointer */
-	if ((err = ext4_ext_get_access(handle, inode, curp)))
+	err = ext4_ext_get_access(handle, inode, curp);
+	if (err)
 		goto out;
 
 	curp->p_hdr->eh_magic = EXT4_EXT_MAGIC;
@@ -1070,20 +1081,24 @@ int ext4_ext_correct_indexes(handle_t *handle, struct inode *inode,
 	 */
 	k = depth - 1;
 	border = path[depth].p_ext->ee_block;
-	if ((err = ext4_ext_get_access(handle, inode, path + k)))
+	err = ext4_ext_get_access(handle, inode, path + k);
+	if (err)
 		return err;
 	path[k].p_idx->ei_block = border;
-	if ((err = ext4_ext_dirty(handle, inode, path + k)))
+	err = ext4_ext_dirty(handle, inode, path + k);
+	if (err)
 		return err;
 
 	while (k--) {
 		/* change all left-side indexes */
 		if (path[k+1].p_idx != EXT_FIRST_INDEX(path[k+1].p_hdr))
 			break;
-		if ((err = ext4_ext_get_access(handle, inode, path + k)))
+		err = ext4_ext_get_access(handle, inode, path + k);
+		if (err)
 			break;
 		path[k].p_idx->ei_block = border;
-		if ((err = ext4_ext_dirty(handle, inode, path + k)))
+		err = ext4_ext_dirty(handle, inode, path + k);
+		if (err)
 			break;
 	}
 
@@ -1142,7 +1157,8 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode,
 				le16_to_cpu(newext->ee_len),
 				le32_to_cpu(ex->ee_block),
 				le16_to_cpu(ex->ee_len), ext_pblock(ex));
-		if ((err = ext4_ext_get_access(handle, inode, path + depth)))
+		err = ext4_ext_get_access(handle, inode, path + depth);
+		if (err)
 			return err;
 		ex->ee_len = cpu_to_le16(le16_to_cpu(ex->ee_len)
 					 + le16_to_cpu(newext->ee_len));
@@ -1192,7 +1208,8 @@ repeat:
 has_space:
 	nearex = path[depth].p_ext;
 
-	if ((err = ext4_ext_get_access(handle, inode, path + depth)))
+	err = ext4_ext_get_access(handle, inode, path + depth);
+	if (err)
 		goto cleanup;
 
 	if (!nearex) {
@@ -1486,10 +1503,12 @@ int ext4_ext_rm_idx(handle_t *handle, struct inode *inode,
 	path--;
 	leaf = idx_pblock(path->p_idx);
 	BUG_ON(path->p_hdr->eh_entries == 0);
-	if ((err = ext4_ext_get_access(handle, inode, path)))
+	err = ext4_ext_get_access(handle, inode, path);
+	if (err)
 		return err;
 	path->p_hdr->eh_entries = cpu_to_le16(le16_to_cpu(path->p_hdr->eh_entries)-1);
-	if ((err = ext4_ext_dirty(handle, inode, path)))
+	err = ext4_ext_dirty(handle, inode, path);
+	if (err)
 		return err;
 	ext_debug("index is empty, remove it, free block %llu\n", leaf);
 	bh = sb_find_get_block(inode->i_sb, leaf);
@@ -1930,7 +1949,8 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
 	mutex_lock(&EXT4_I(inode)->truncate_mutex);
 
 	/* check in cache */
-	if ((goal = ext4_ext_in_cache(inode, iblock, &newex))) {
+	goal = ext4_ext_in_cache(inode, iblock, &newex);
+	if (goal) {
 		if (goal == EXT4_EXT_CACHE_GAP) {
 			if (!create) {
 				/* block isn't allocated yet and
@@ -1969,7 +1989,8 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
 	 */
 	BUG_ON(path[depth].p_ext == NULL && depth != 0);
 
-	if ((ex = path[depth].p_ext)) {
+	ex = path[depth].p_ext;
+	if (ex) {
 	        unsigned long ee_block = le32_to_cpu(ex->ee_block);
 		ext4_fsblk_t ee_start = ext_pblock(ex);
 		unsigned short ee_len  = le16_to_cpu(ex->ee_len);