| commit | 32c7f202a4801252a0f3578807b75a961f792870 | [log] [tgz] |
|---|---|---|
| author | Wu Fengguang <fengguang.wu@intel.com> | Mon Aug 08 15:19:47 2011 -0600 |
| committer | Wu Fengguang <fengguang.wu@intel.com> | Sun Dec 18 14:20:25 2011 +0800 |
| tree | c09d5578604e83c2c421aca32b6b125d70b4a2bc | |
| parent | 2f800fbd777b792de54187088df19a7df0251254 [diff] |
btrfs: fix dirtied pages accounting on sub-page writes When doing 1KB sequential writes to the same page, balance_dirty_pages_ratelimited_nr() should be called once instead of 4 times, the latter makes the dirtier tasks be throttled much too heavy. Fix it with proper de-accounting on clear_page_dirty_for_io(). CC: Chris Mason <chris.mason@oracle.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>