btrfs-progs: convert: move read_disk_extent

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/btrfs-convert.c b/btrfs-convert.c
index b868479..480ce9e 100644 (file)
--- a/btrfs-convert.c
+++ b/btrfs-convert.c
@@ -173,6 +173,22 @@ static int convert_insert_dirent(struct btrfs_trans_handle *trans,
        return 0;
 }
 
+static int read_disk_extent(struct btrfs_root *root, u64 bytenr,
+                           u32 num_bytes, char *buffer)
+{
+       int ret;
+       struct btrfs_fs_devices *fs_devs = root->fs_info->fs_devices;
+
+       ret = pread(fs_devs->latest_bdev, buffer, num_bytes, bytenr);
+       if (ret != num_bytes)
+               goto fail;
+       ret = 0;
+fail:
+       if (ret > 0)
+               ret = -1;
+       return ret;
+}
+
 /*
  * Open Ext2fs in readonly mode, read block allocation bitmap and
  * inode bitmap into memory.
@@ -414,22 +430,6 @@ error:
        return -1;
 }
 
-static int read_disk_extent(struct btrfs_root *root, u64 bytenr,
-                           u32 num_bytes, char *buffer)
-{
-       int ret;
-       struct btrfs_fs_devices *fs_devs = root->fs_info->fs_devices;
-
-       ret = pread(fs_devs->latest_bdev, buffer, num_bytes, bytenr);
-       if (ret != num_bytes)
-               goto fail;
-       ret = 0;
-fail:
-       if (ret > 0)
-               ret = -1;
-       return ret;
-}
-
 static int csum_disk_extent(struct btrfs_trans_handle *trans,
                            struct btrfs_root *root,
                            u64 disk_bytenr, u64 num_bytes)