x86, perf, bts, mm: Delete the never used BTS-ptrace code

[safe/jmp/linux-2.6] / mm / page-writeback.c

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 69b5fba..0b19943 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -566,7 +566,8 @@ static void balance_dirty_pages(struct address_space *mapping,
                if (pages_written >= write_chunk)
                        break;          /* We've done our duty */
 
-               schedule_timeout_interruptible(pause);
+               __set_current_state(TASK_INTERRUPTIBLE);
+               io_schedule_timeout(pause);
 
                /*
                 * Increase the delay for each loop, up to our previous
@@ -596,7 +597,7 @@ static void balance_dirty_pages(struct address_space *mapping,
            (!laptop_mode && ((global_page_state(NR_FILE_DIRTY)
                               + global_page_state(NR_UNSTABLE_NFS))
                                          > background_thresh)))
-               bdi_start_writeback(bdi, 0);
+               bdi_start_writeback(bdi, NULL, 0);
 }
 
 void set_page_dirty_balance(struct page *page, int page_mkwrite)
@@ -820,7 +821,6 @@ int write_cache_pages(struct address_space *mapping,
                      struct writeback_control *wbc, writepage_t writepage,
                      void *data)
 {
-       struct backing_dev_info *bdi = mapping->backing_dev_info;
        int ret = 0;
        int done = 0;
        struct pagevec pvec;
@@ -833,11 +833,6 @@ int write_cache_pages(struct address_space *mapping,
        int range_whole = 0;
        long nr_to_write = wbc->nr_to_write;
 
-       if (wbc->nonblocking && bdi_write_congested(bdi)) {
-               wbc->encountered_congestion = 1;
-               return 0;
-       }
-
        pagevec_init(&pvec, 0);
        if (wbc->range_cyclic) {
                writeback_index = mapping->writeback_index; /* prev offset */
@@ -956,12 +951,6 @@ continue_unlock:
                                        break;
                                }
                        }
-
-                       if (wbc->nonblocking && bdi_write_congested(bdi)) {
-                               wbc->encountered_congestion = 1;
-                               done = 1;
-                               break;
-                       }
                }
                pagevec_release(&pvec);
                cond_resched();