diff options
| author | Wu Fengguang <[email protected]> | 2011-04-14 07:52:37 -0600 |
|---|---|---|
| committer | Wu Fengguang <[email protected]> | 2011-12-18 14:20:22 +0800 |
| commit | d3bc1fef9389e409a772ea174a5e41a6f93d9b7b (patch) | |
| tree | d1e47354263b7c930a7ec4428909693d10a10c50 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 54848d73f9f254631303d6eab9b976855988b266 (diff) | |
writeback: fix dirtied pages accounting on sub-page writes
When dd in 512bytes, generic_perform_write() calls
balance_dirty_pages_ratelimited() 8 times for the same page, but
obviously the page is only dirtied once.
Fix it by accounting tsk->nr_dirtied and bdp_ratelimits at page dirty time.
Acked-by: Jan Kara <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Signed-off-by: Wu Fengguang <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions