[PATCH] separate bdi congestion functions from queue congestion functions
[linux-2.6.git] / mm / page-writeback.c
index a0f3390..8d9b19f 100644 (file)
@@ -222,7 +222,7 @@ static void balance_dirty_pages(struct address_space *mapping)
                        if (pages_written >= write_chunk)
                                break;          /* We've done our duty */
                }
-               blk_congestion_wait(WRITE, HZ/10);
+               congestion_wait(WRITE, HZ/10);
        }
 
        if (nr_reclaimable + global_page_state(NR_WRITEBACK)
@@ -314,7 +314,7 @@ void throttle_vm_writeout(void)
                 if (global_page_state(NR_UNSTABLE_NFS) +
                        global_page_state(NR_WRITEBACK) <= dirty_thresh)
                                break;
-                blk_congestion_wait(WRITE, HZ/10);
+                congestion_wait(WRITE, HZ/10);
         }
 }
 
@@ -351,7 +351,7 @@ static void background_writeout(unsigned long _min_pages)
                min_pages -= MAX_WRITEBACK_PAGES - wbc.nr_to_write;
                if (wbc.nr_to_write > 0 || wbc.pages_skipped > 0) {
                        /* Wrote less than expected */
-                       blk_congestion_wait(WRITE, HZ/10);
+                       congestion_wait(WRITE, HZ/10);
                        if (!wbc.encountered_congestion)
                                break;
                }
@@ -422,7 +422,7 @@ static void wb_kupdate(unsigned long arg)
                writeback_inodes(&wbc);
                if (wbc.nr_to_write > 0) {
                        if (wbc.encountered_congestion)
-                               blk_congestion_wait(WRITE, HZ/10);
+                               congestion_wait(WRITE, HZ/10);
                        else
                                break;  /* All the old data is written */
                }
@@ -956,15 +956,6 @@ int test_set_page_writeback(struct page *page)
 EXPORT_SYMBOL(test_set_page_writeback);
 
 /*
- * Wakes up tasks that are being throttled due to writeback congestion
- */
-void writeback_congestion_end(void)
-{
-       blk_congestion_end(WRITE);
-}
-EXPORT_SYMBOL(writeback_congestion_end);
-
-/*
  * Return true if any of the pages in the mapping are marged with the
  * passed tag.
  */