[PATCH] io-accounting: write-cancel accounting
[linux-2.6.git] / mm / truncate.c
index e07b1e6..9bfb8e8 100644 (file)
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/pagemap.h>
 #include <linux/pagevec.h>
+#include <linux/task_io_accounting_ops.h>
 #include <linux/buffer_head.h> /* grr. try_to_release_page,
                                   do_invalidatepage */
 
@@ -69,7 +70,8 @@ truncate_complete_page(struct address_space *mapping, struct page *page)
        if (PagePrivate(page))
                do_invalidatepage(page, 0);
 
-       clear_page_dirty(page);
+       if (test_clear_page_dirty(page))
+               task_io_account_cancelled_write(PAGE_CACHE_SIZE);
        ClearPageUptodate(page);
        ClearPageMappedToDisk(page);
        remove_from_page_cache(page);