xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Btrfs: Full back reference support

Browse Source 
This patch makes the back reference system to explicit record the
location of parent node for all types of extents. The location of
parent node is placed into the offset field of backref key. Every
time a tree block is balanced, the back references for the affected
lower level extents are updated.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Zheng Yan
2008-09-23 13:14:14 -04:00
committed by Chris Mason
parent 1c2308f8e7
commit 31840ae1a6
10 changed files with 1066 additions and 722 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
fs/btrfs/disk-io.c
View File

@@ -882,8 +882,8 @@ int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans,
root->ref_cows = 0;
root->node = btrfs_alloc_free_block(trans, root, root->leafsize,
BTRFS_TREE_LOG_OBJECTID,
0, 0, 0, 0, 0);
0, BTRFS_TREE_LOG_OBJECTID,
trans->transid, 0, 0, 0);
btrfs_set_header_nritems(root->node, 0);
btrfs_set_header_level(root->node, 0);