1 files changed, 6 insertions, 2 deletions

diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 66ebddcff664..36520ded3e06 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -34,6 +34,9 @@ struct writeback_control {
         enum writeback_sync_modes sync_mode;
         unsigned long *older_than_this; /* If !NULL, only write back inodes
                                            older than this */
+        unsigned long wb_start;         /* Time writeback_inodes_wb was
+                                           called. This is needed to avoid
+                                           extra jobs and livelock */
         long nr_to_write;               /* Write this many pages, and decrement
                                            this for each page written */
         long pages_skipped;             /* Pages which were not written */
@@ -49,6 +52,7 @@ struct writeback_control {
         unsigned nonblocking:1;         /* Don't get stuck on request queues */
         unsigned encountered_congestion:1; /* An output: a queue is full */
         unsigned for_kupdate:1;         /* A kupdate writeback */
+        unsigned for_background:1;      /* A background writeback */
         unsigned for_reclaim:1;         /* Invoked from the page allocator */
         unsigned range_cyclic:1;        /* range_start is cyclic */
         unsigned more_io:1;             /* more io to be dispatched */
@@ -69,6 +73,7 @@ struct writeback_control {
 struct bdi_writeback;
 int inode_wait(void *);
 void writeback_inodes_sb(struct super_block *);
+int writeback_inodes_sb_if_idle(struct super_block *);
 void sync_inodes_sb(struct super_block *);
 void writeback_inodes_wbc(struct writeback_control *wbc);
 long wb_do_writeback(struct bdi_writeback *wb, int force_wait);
@@ -78,8 +83,7 @@ void wakeup_flusher_threads(long nr_pages);
 static inline void wait_on_inode(struct inode *inode)
 {
         might_sleep();
-        wait_on_bit(&inode->i_state, __I_LOCK, inode_wait,
-                                                        TASK_UNINTERRUPTIBLE);
+        wait_on_bit(&inode->i_state, __I_NEW, inode_wait, TASK_UNINTERRUPTIBLE);
 }
 static inline void inode_sync_wait(struct inode *inode)
 {