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| author |   Wei Yang <richard.weiyang@linux.alibaba.com> | 2020-08-31 11:11:02 +0800 |
|---|---|---|
| committer |   Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-10-08 15:29:06 -0400 |
| commit | b40c6eabfcd409e022fcb377ac268e3ef9446fde (patch) | |
| tree | 9f5cf98fcd3a13f2951d7d2b8c0cc12ffec45738 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ftrace: Simplify the dyn_ftrace->flags macro (diff) | |
| download | linux-dev-b40c6eabfcd409e022fcb377ac268e3ef9446fde.tar.xz linux-dev-b40c6eabfcd409e022fcb377ac268e3ef9446fde.zip | |
ftrace: Simplify the calculation of page number for ftrace_page->records
Based on the following two reasones, we could simplify the calculation:
- If the number after roundup count is not power of 2, we would
definitely have more than 1 empty page with a higher order.
- get_count_order() just return current order, so one lower order
could meet the requirement.
The calculation could be simplified by lower one order level when pages
are not power of 2.
Link: https://lkml.kernel.org/r/20200831031104.23322-5-richard.weiyang@linux.alibaba.com
Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions