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| author | Ildar Ismagilov <devix84@gmail.com> | 2018-01-31 22:42:21 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-02-21 03:21:12 +0300 |
| commit | 8ddbd8832d25463a996a1075c35f312fb43c86b1 (patch) | |
| tree | 3b4c1380ccb51276bc068f7865f2072542d9db50 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | a35d13ec3686612b17771bf1abcad75d2ebd42ef (diff) | |
| download | linux-8ddbd8832d25463a996a1075c35f312fb43c86b1.tar.xz | |
srcu: Reduce scans of srcu_data in counter wrap check
Currently, given a multi-level srcu_node tree, SRCU can scan the full
set of srcu_data structures at each level when cleaning up after a grace
period. This, though harmless otherwise, represents pointless overhead.
This commit therefore eliminates this overhead by scanning the srcu_data
structures only when traversing the leaf srcu_node structures.
Signed-off-by: Ildar Ismagilov <devix84@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions