writeback: switch to per-bdi threads for flushing data

[safe/jmp/linux-2.6] / include / linux / writeback.h

diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 0703929..cef7552 100644 (file)
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -40,6 +40,8 @@ enum writeback_sync_modes {
 struct writeback_control {
        struct backing_dev_info *bdi;   /* If !NULL, only write back this
                                           queue */
+       struct super_block *sb;         /* if !NULL, only write inodes from
+                                          this super_block */
        enum writeback_sync_modes sync_mode;
        unsigned long *older_than_this; /* If !NULL, only write back inodes
                                           older than this */
@@ -76,10 +78,13 @@ struct writeback_control {
 /*
  * fs/fs-writeback.c
  */    
-void writeback_inodes(struct writeback_control *wbc);
+struct bdi_writeback;
 int inode_wait(void *);
 long writeback_inodes_sb(struct super_block *);
 long 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);
+void wakeup_flusher_threads(long nr_pages);
 
 /* writeback.h requires fs.h; it, too, is not included from here. */
 static inline void wait_on_inode(struct inode *inode)
@@ -99,7 +104,6 @@ static inline void inode_sync_wait(struct inode *inode)
 /*
  * mm/page-writeback.c
  */
-int wakeup_pdflush(long nr_pages);
 void laptop_io_completion(void);
 void laptop_sync_completion(void);
 void throttle_vm_writeout(gfp_t gfp_mask);