diff options
| author | David S. Miller <davem@davemloft.net> | 2010-05-31 05:46:45 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-31 05:46:45 -0700 |
| commit | 64960848abd18d0bcde3f53ffa7ed0b631e6b25d (patch) | |
| tree | 8424a1c550a98ce09f127425fde9b7b5f2f5027a /mm/backing-dev.c | |
| parent | 2903037400a26e7c0cc93ab75a7d62abfacdf485 (diff) | |
| parent | 67a3e12b05e055c0415c556a315a3d3eb637e29e (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'mm/backing-dev.c')
| -rw-r--r-- | mm/backing-dev.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 707d0dc6da0..660a87a2251 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -48,7 +48,6 @@ static struct timer_list sync_supers_timer; static int bdi_sync_supers(void *); static void sync_supers_timer_fn(unsigned long); -static void arm_supers_timer(void); static void bdi_add_default_flusher_task(struct backing_dev_info *bdi); @@ -252,7 +251,7 @@ static int __init default_bdi_init(void) init_timer(&sync_supers_timer); setup_timer(&sync_supers_timer, sync_supers_timer_fn, 0); - arm_supers_timer(); + bdi_arm_supers_timer(); err = bdi_init(&default_backing_dev_info); if (!err) @@ -374,10 +373,13 @@ static int bdi_sync_supers(void *unused) return 0; } -static void arm_supers_timer(void) +void bdi_arm_supers_timer(void) { unsigned long next; + if (!dirty_writeback_interval) + return; + next = msecs_to_jiffies(dirty_writeback_interval * 10) + jiffies; mod_timer(&sync_supers_timer, round_jiffies_up(next)); } @@ -385,7 +387,7 @@ static void arm_supers_timer(void) static void sync_supers_timer_fn(unsigned long unused) { wake_up_process(sync_supers_tsk); - arm_supers_timer(); + bdi_arm_supers_timer(); } static int bdi_forker_task(void *ptr) @@ -428,7 +430,10 @@ static int bdi_forker_task(void *ptr) spin_unlock_bh(&bdi_lock); wait = msecs_to_jiffies(dirty_writeback_interval * 10); - schedule_timeout(wait); + if (wait) + schedule_timeout(wait); + else + schedule(); try_to_freeze(); continue; } |