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| author |   Wu Fengguang <fengguang.wu@intel.com> | 2011-04-14 07:52:37 -0600 |
|---|---|---|
| committer | Wu Fengguang <fengguang.wu@intel.com> | 2011-12-18 14:20:22 +0800 |
| commit | d3bc1fef9389e409a772ea174a5e41a6f93d9b7b (patch) | |
| tree | d1e47354263b7c930a7ec4428909693d10a10c50 /include | |
| parent | writeback: charge leaked page dirties to active tasks (diff) | |
| download | linux-dev-d3bc1fef9389e409a772ea174a5e41a6f93d9b7b.tar.xz linux-dev-d3bc1fef9389e409a772ea174a5e41a6f93d9b7b.zip | |
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 <jack@suse.cz>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions