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

* 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux:
  writeback: move MIN_WRITEBACK_PAGES to fs-writeback.c
  writeback: balanced_rate cannot exceed write bandwidth
  writeback: do strict bdi dirty_exceeded
  writeback: avoid tiny dirty poll intervals
  writeback: max, min and target dirty pause time
  writeback: dirty ratelimit - think time compensation
  btrfs: fix dirtied pages accounting on sub-page writes
  writeback: fix dirtied pages accounting on redirty
  writeback: fix dirtied pages accounting on sub-page writes
  writeback: charge leaked page dirties to active tasks
  writeback: Include all dirty inodes in background writeback

2 files changed, 4 insertions, 0 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index d9eab2e4b430..94ed6e20bb53 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -51,6 +51,7 @@
 #include <trace/events/sched.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/oom.h>
+#include <linux/writeback.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -1035,6 +1036,8 @@ NORET_TYPE void do_exit(long code)
         validate_creds_for_do_exit(tsk);
 
         preempt_disable();
+        if (tsk->nr_dirtied)
+                __this_cpu_add(dirty_throttle_leaks, tsk->nr_dirtied);
         exit_rcu();
         /* causes final put_task_struct in finish_task_switch(). */
         tsk->state = TASK_DEAD;
diff --git a/kernel/fork.c b/kernel/fork.c
index 5e1391b5ade0..443f5125f11e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1294,6 +1294,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 
         p->nr_dirtied = 0;
         p->nr_dirtied_pause = 128 >> (PAGE_SHIFT - 10);
+        p->dirty_paused_when = 0;
 
         /*
          * Ok, make it visible to the rest of the system.