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| author | Yan Zheng <zheng.yan@oracle.com> | 2009-07-24 12:42:46 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2009-07-24 12:42:46 -0400 |
| commit | d717aa1d31c36cb56059e97966cb76f0be021969 (patch) | |
| tree | bb3f8aafe721504c329d448f84f3b3868e056413 | |
| parent | 0a4eefbb745ec0e8a5b694ae3f40cc34082d8f61 (diff) | |
| download | op-kernel-dev-d717aa1d31c36cb56059e97966cb76f0be021969.zip op-kernel-dev-d717aa1d31c36cb56059e97966cb76f0be021969.tar.gz | |
Btrfs: Avoid delayed reference update looping
btrfs_split_leaf and btrfs_del_items can end up in a loop
where one is constantly spliting a given leaf and the other
is constantly merging it back with the adjacent nodes.
There is a better fix for this, but in the interest of something
small, this patch just changes btrfs_del_items back to balancing less
often.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | fs/btrfs/ctree.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 978449a..3fdcc05 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1040,9 +1040,6 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, BTRFS_NODEPTRS_PER_BLOCK(root) / 4) return 0; - if (btrfs_header_nritems(mid) > 2) - return 0; - if (btrfs_header_nritems(mid) < 2) err_on_enospc = 1; @@ -3796,7 +3793,7 @@ 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) / 2) { + if (used < BTRFS_LEAF_DATA_SIZE(root) / 3) { /* push_leaf_left fixes the path. * make sure the path still points to our leaf * for possible call to del_ptr below |
