Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

[pandora-kernel.git] / mm / backing-dev.c

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 7520ef0..71034f4 100644 (file)
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -97,6 +97,7 @@ static int bdi_debug_stats_show(struct seq_file *m, void *v)
                   "BdiDirtyThresh:     %10lu kB\n"
                   "DirtyThresh:        %10lu kB\n"
                   "BackgroundThresh:   %10lu kB\n"
+                  "BdiDirtied:         %10lu kB\n"
                   "BdiWritten:         %10lu kB\n"
                   "BdiWriteBandwidth:  %10lu kBps\n"
                   "b_dirty:            %10lu\n"
@@ -109,6 +110,7 @@ static int bdi_debug_stats_show(struct seq_file *m, void *v)
                   K(bdi_thresh),
                   K(dirty_thresh),
                   K(background_thresh),
+                  (unsigned long) K(bdi_stat(bdi, BDI_DIRTIED)),
                   (unsigned long) K(bdi_stat(bdi, BDI_WRITTEN)),
                   (unsigned long) K(bdi->write_bandwidth),
                   nr_dirty,
@@ -473,7 +475,8 @@ static int bdi_forker_thread(void *ptr)
                                 * the bdi from the thread. Hopefully 1024 is
                                 * large enough for efficient IO.
                                 */
-                               writeback_inodes_wb(&bdi->wb, 1024);
+                               writeback_inodes_wb(&bdi->wb, 1024,
+                                                   WB_REASON_FORKER_THREAD);
                        } else {
                                /*
                                 * The spinlock makes sure we do not lose
@@ -683,6 +686,8 @@ int bdi_init(struct backing_dev_info *bdi)
        bdi->bw_time_stamp = jiffies;
        bdi->written_stamp = 0;
 
+       bdi->balanced_dirty_ratelimit = INIT_BW;
+       bdi->dirty_ratelimit = INIT_BW;
        bdi->write_bandwidth = INIT_BW;
        bdi->avg_write_bandwidth = INIT_BW;
 
@@ -719,6 +724,14 @@ void bdi_destroy(struct backing_dev_info *bdi)
 
        bdi_unregister(bdi);
 
+       /*
+        * If bdi_unregister() had already been called earlier, the
+        * wakeup_timer could still be armed because bdi_prune_sb()
+        * can race with the bdi_wakeup_thread_delayed() calls from
+        * __mark_inode_dirty().
+        */
+       del_timer_sync(&bdi->wb.wakeup_timer);
+
        for (i = 0; i < NR_BDI_STAT_ITEMS; i++)
                percpu_counter_destroy(&bdi->bdi_stat[i]);