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| author |   Wu Fengguang <fengguang.wu@intel.com> | 2011-08-08 15:19:47 -0600 |
|---|---|---|
| committer | Wu Fengguang <fengguang.wu@intel.com> | 2011-12-18 14:20:25 +0800 |
| commit | 32c7f202a4801252a0f3578807b75a961f792870 (patch) | |
| tree | c09d5578604e83c2c421aca32b6b125d70b4a2bc /kernel/fork.c | |
| parent | writeback: fix dirtied pages accounting on redirty (diff) | |
| download | linux-dev-32c7f202a4801252a0f3578807b75a961f792870.tar.xz linux-dev-32c7f202a4801252a0f3578807b75a961f792870.zip | |
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>
Diffstat (limited to 'kernel/fork.c')
0 files changed, 0 insertions, 0 deletions