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| author | Arnd Bergmann <arnd@arndb.de> | 2011-11-23 20:47:41 +0000 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-11-23 20:47:41 +0000 |
| commit | 58a273745fbb2fbd01d26e7a60f0acc8c1d99469 (patch) | |
| tree | bc16200f3b6ea150b298422754e32959eaa339bc /mm/page-writeback.c | |
| parent | 951c486f62490e032da0ad17e93270b0cfb6687f (diff) | |
| parent | 0116da4fcc1ae8a80d9002441e98768f2a6fa2fe (diff) | |
Merge branches 'drivers/macb-gem' and 'drivers/pxa-gpio' into next/drivers
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 0360d1b5a1d..a3278f00523 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1097,13 +1097,13 @@ static void balance_dirty_pages(struct address_space *mapping, pos_ratio = bdi_position_ratio(bdi, dirty_thresh, background_thresh, nr_dirty, bdi_thresh, bdi_dirty); - if (unlikely(pos_ratio == 0)) { + task_ratelimit = ((u64)dirty_ratelimit * pos_ratio) >> + RATELIMIT_CALC_SHIFT; + if (unlikely(task_ratelimit == 0)) { pause = max_pause; goto pause; } - task_ratelimit = (u64)dirty_ratelimit * - pos_ratio >> RATELIMIT_CALC_SHIFT; - pause = (HZ * pages_dirtied) / (task_ratelimit | 1); + pause = HZ * pages_dirtied / task_ratelimit; if (unlikely(pause <= 0)) { trace_balance_dirty_pages(bdi, dirty_thresh, |