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| author | Qu Wenruo <quwenruo@cn.fujitsu.com> | 2015-04-16 11:40:39 +0300 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2015-06-10 19:25:39 +0300 |
| commit | 3b7d00f99c60b31e1cff0efc6b9178eea3696e27 (patch) | |
| tree | 6ad1addc84a6635f3696fbea6bfd54276075d30c /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 3368d001ba5df44930d986e82b1b497d4da285ba (diff) | |
| download | linux-3b7d00f99c60b31e1cff0efc6b9178eea3696e27.tar.xz | |
btrfs: qgroup: Add new function to record old_roots.
Add function btrfs_qgroup_prepare_account_extents() to get old_roots
which are needed for qgroup.
We do it in commit_transaction() and before switch_roots(), and only
search commit_root, so it gives a quite accurate view for previous
transaction.
With old_roots from previous transaction, we can use it to do accurate
account with current transaction.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions