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| author | Wu Fengguang | 2010-12-07 05:34:29 +0100 |
|---|---|---|
| committer | Wu Fengguang | 2011-07-10 07:09:03 +0200 |
| commit | e1cbe236013c82bcf9a156e98d7b47efb89d2674 (patch) | |
| tree | c2f1764a3d07fd01fdbe6fd7d6ecd647557808d5 /mm/page-writeback.c | |
| parent | writeback: introduce max-pause and pass-good dirty limits (diff) | |
| download | kernel-qcow2-linux-e1cbe236013c82bcf9a156e98d7b47efb89d2674.tar.gz kernel-qcow2-linux-e1cbe236013c82bcf9a156e98d7b47efb89d2674.tar.xz kernel-qcow2-linux-e1cbe236013c82bcf9a156e98d7b47efb89d2674.zip | |
writeback: trace global_dirty_state
Add trace event balance_dirty_state for showing the global dirty page
counts and thresholds at each global_dirty_limits() invocation. This
will cover the callers throttle_vm_writeout(), over_bground_thresh()
and each balance_dirty_pages() loop.
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 798842a22474..f9d9f5476d58 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -447,6 +447,7 @@ void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty) } *pbackground = background; *pdirty = dirty; + trace_global_dirty_state(background, dirty); } /** |