btrfs-progs: check: move reada_walk_down to check/common.c

Both original and lowmem modes share this function to do readahead.

Reviewed-by: Su Yue <suy.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/check/common.c b/check/common.c
index 7392ed6..1ea9f50 100644 (file)
--- a/check/common.c
+++ b/check/common.c
@@ -20,6 +20,7 @@
 #include "messages.h"
 #include "transaction.h"
 #include "utils.h"
+#include "disk-io.h"
 #include "check/common.h"
 
 /*
@@ -252,3 +253,25 @@ void check_dev_size_alignment(u64 devid, u64 total_bytes, u32 sectorsize)
                warning("this can be fixed by 'btrfs rescue fix-device-size'");
        }
 }
+
+void reada_walk_down(struct btrfs_root *root, struct extent_buffer *node,
+                    int slot)
+{
+       struct btrfs_fs_info *fs_info = root->fs_info;
+       u64 bytenr;
+       u64 ptr_gen;
+       u32 nritems;
+       int i;
+       int level;
+
+       level = btrfs_header_level(node);
+       if (level != 1)
+               return;
+
+       nritems = btrfs_header_nritems(node);
+       for (i = slot; i < nritems; i++) {
+               bytenr = btrfs_node_blockptr(node, i);
+               ptr_gen = btrfs_node_ptr_generation(node, i);
+               readahead_tree_block(fs_info, bytenr, ptr_gen);
+       }
+}

diff --git a/check/common.h b/check/common.h
index 72146b4..34b2f8a 100644 (file)
--- a/check/common.h
+++ b/check/common.h
@@ -91,5 +91,7 @@ int link_inode_to_lostfound(struct btrfs_trans_handle *trans,
                            u64 ino, char *namebuf, u32 name_len,
                            u8 filetype, u64 *ref_count);
 void check_dev_size_alignment(u64 devid, u64 total_bytes, u32 sectorsize);
+void reada_walk_down(struct btrfs_root *root, struct extent_buffer *node,
+                    int slot);
 
 #endif

diff --git a/check/main.c b/check/main.c
index 7619c8e..4c195f2 100644 (file)
--- a/check/main.c
+++ b/check/main.c
@@ -1668,28 +1668,6 @@ out:
        return ret;
 }
 
-static void reada_walk_down(struct btrfs_root *root,
-                           struct extent_buffer *node, int slot)
-{
-       struct btrfs_fs_info *fs_info = root->fs_info;
-       u64 bytenr;
-       u64 ptr_gen;
-       u32 nritems;
-       int i;
-       int level;
-
-       level = btrfs_header_level(node);
-       if (level != 1)
-               return;
-
-       nritems = btrfs_header_nritems(node);
-       for (i = slot; i < nritems; i++) {
-               bytenr = btrfs_node_blockptr(node, i);
-               ptr_gen = btrfs_node_ptr_generation(node, i);
-               readahead_tree_block(fs_info, bytenr, ptr_gen);
-       }
-}
-
 /*
  * Check the child node/leaf by the following condition:
  * 1. the first item key of the node/leaf should be the same with the one