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-rw-r--r--extent-tree.c10
-rw-r--r--math.h33
-rw-r--r--volumes.c9
3 files changed, 35 insertions, 17 deletions
diff --git a/extent-tree.c b/extent-tree.c
index 63b1a386..e4582682 100644
--- a/extent-tree.c
+++ b/extent-tree.c
@@ -27,6 +27,7 @@
#include "crc32c.h"
#include "volumes.h"
#include "free-space-cache.h"
+#include "math.h"
#define PENDING_EXTENT_INSERT 0
#define PENDING_EXTENT_DELETE 1
@@ -300,15 +301,6 @@ wrapped:
goto again;
}
-static u64 div_factor(u64 num, int factor)
-{
- if (factor == 10)
- return num;
- num *= factor;
- num /= 10;
- return num;
-}
-
static int block_group_state_bits(u64 flags)
{
int bits = 0;
diff --git a/math.h b/math.h
new file mode 100644
index 00000000..482dba33
--- /dev/null
+++ b/math.h
@@ -0,0 +1,33 @@
+
+/*
+ * Copyright (C) 2012 Fujitsu. All rights reserved.
+ * Written by Miao Xie <miaox@cn.fujitsu.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#ifndef __BTRFS_MATH_H
+#define __BTRFS_MATH_H
+
+static inline u64 div_factor(u64 num, int factor)
+{
+ if (factor == 10)
+ return num;
+ num *= factor;
+ num /= 10;
+ return num;
+}
+
+#endif
diff --git a/volumes.c b/volumes.c
index 0ff22833..10fdc487 100644
--- a/volumes.c
+++ b/volumes.c
@@ -29,6 +29,7 @@
#include "transaction.h"
#include "print-tree.h"
#include "volumes.h"
+#include "math.h"
struct stripe {
struct btrfs_device *dev;
@@ -630,14 +631,6 @@ int btrfs_add_system_chunk(struct btrfs_trans_handle *trans,
return 0;
}
-static u64 div_factor(u64 num, int factor)
-{
- if (factor == 10)
- return num;
- num *= factor;
- return num / 10;
-}
-
static u64 chunk_bytes_by_type(u64 type, u64 calc_size, int num_stripes,
int sub_stripes)
{