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authorWu Fengguang <fengguang.wu@intel.com>2011-10-03 20:46:17 -0600
committerWu Fengguang <fengguang.wu@intel.com>2011-10-03 21:08:56 +0800
commitaf6a311384bce6c88e15c80ab22ab051a918b4eb (patch)
tree55ebac9ff575b3b6b4cfe46a38282c007c62d188 /mm/page-writeback.c
parent6c14ae1e92c77eabd3e7527cf2e7836cde8b8487 (diff)
downloadlinux-af6a311384bce6c88e15c80ab22ab051a918b4eb.tar.bz2
writeback: add bg_threshold parameter to __bdi_update_bandwidth()
No behavior change. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Diffstat (limited to 'mm/page-writeback.c')
-rw-r--r--mm/page-writeback.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index c16ddd8f5cb6..4b954c9fe846 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -779,6 +779,7 @@ static void global_update_bandwidth(unsigned long thresh,
void __bdi_update_bandwidth(struct backing_dev_info *bdi,
unsigned long thresh,
+ unsigned long bg_thresh,
unsigned long dirty,
unsigned long bdi_thresh,
unsigned long bdi_dirty,
@@ -815,6 +816,7 @@ snapshot:
static void bdi_update_bandwidth(struct backing_dev_info *bdi,
unsigned long thresh,
+ unsigned long bg_thresh,
unsigned long dirty,
unsigned long bdi_thresh,
unsigned long bdi_dirty,
@@ -823,8 +825,8 @@ static void bdi_update_bandwidth(struct backing_dev_info *bdi,
if (time_is_after_eq_jiffies(bdi->bw_time_stamp + BANDWIDTH_INTERVAL))
return;
spin_lock(&bdi->wb.list_lock);
- __bdi_update_bandwidth(bdi, thresh, dirty, bdi_thresh, bdi_dirty,
- start_time);
+ __bdi_update_bandwidth(bdi, thresh, bg_thresh, dirty,
+ bdi_thresh, bdi_dirty, start_time);
spin_unlock(&bdi->wb.list_lock);
}
@@ -912,8 +914,9 @@ static void balance_dirty_pages(struct address_space *mapping,
if (!bdi->dirty_exceeded)
bdi->dirty_exceeded = 1;
- bdi_update_bandwidth(bdi, dirty_thresh, nr_dirty,
- bdi_thresh, bdi_dirty, start_time);
+ bdi_update_bandwidth(bdi, dirty_thresh, background_thresh,
+ nr_dirty, bdi_thresh, bdi_dirty,
+ start_time);
/* Note: nr_reclaimable denotes nr_dirty + nr_unstable.
* Unstable writes are a feature of certain networked