Both original and lowmem mode shares this function to do readahead.
Signed-off-by: Qu Wenruo <wqu@xxxxxxxx>
---
check/common.c | 23 +++++++++++++++++++++++
check/common.h | 2 ++
check/main.c | 22 ----------------------
3 files changed, 25 insertions(+), 22 deletions(-)
diff --git a/check/common.c b/check/common.c
index 7392ed6b472f..1ea9f506713a 100644
--- 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 72146b444a79..34b2f8a9cd87 100644
--- 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 a8155630df18..aa7098a0be96 100644
--- a/check/main.c
+++ b/check/main.c
@@ -1667,28 +1667,6 @@ 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
--
2.15.1
--
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