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| author | Chris Mason <chris.mason@oracle.com> | 2009-05-18 10:41:58 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2009-06-10 11:29:47 -0400 |
| commit | cfbb9308463f6dad1334884db046ccf0f1a77918 (patch) | |
| tree | 12faa0d785c3e3adec21770db7112514d834f77b | |
| parent | b36124210248706186a02093427bdff4b3f548e8 (diff) | |
| download | linux-cfbb9308463f6dad1334884db046ccf0f1a77918.tar.gz linux-cfbb9308463f6dad1334884db046ccf0f1a77918.tar.bz2 linux-cfbb9308463f6dad1334884db046ccf0f1a77918.zip | |
Btrfs: balance btree more often
With the new back reference code, the cost of a balance has gone down
in terms of the number of back reference updates done. This commit
makes us more aggressively balance leaves and nodes as they become
less full.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | fs/btrfs/ctree.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 2f633e751198..60a45f3a4e91 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1651,7 +1651,7 @@ setup_nodes_for_search(struct btrfs_trans_handle *trans, } b = p->nodes[level]; } else if (ins_len < 0 && btrfs_header_nritems(b) < - BTRFS_NODEPTRS_PER_BLOCK(root) / 4) { + BTRFS_NODEPTRS_PER_BLOCK(root) / 2) { int sret; sret = reada_for_balance(root, p, level); @@ -3807,7 +3807,7 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, } /* delete the leaf if it is mostly empty */ - if (used < BTRFS_LEAF_DATA_SIZE(root) / 4) { + if (used < BTRFS_LEAF_DATA_SIZE(root) / 2) { /* push_leaf_left fixes the path. * make sure the path still points to our leaf * for possible call to del_ptr below |