[MIPS] make fallback gpio.h gpiolib-friendly

[linux-2.6-omap-h63xx.git] / mm / readahead.c

diff --git a/mm/readahead.c b/mm/readahead.c
index 229788884010d18a8dba50f65dbcfe7bb37df744..8762e8988972baa01820369ba1fd46d7e727d215 100644 (file)
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -233,6 +233,12 @@ unsigned long max_sane_readahead(unsigned long nr)
                + node_page_state(numa_node_id(), NR_FREE_PAGES)) / 2);
 }
 
+static int __init readahead_init(void)
+{
+       return bdi_init(&default_backing_dev_info);
+}
+subsys_initcall(readahead_init);
+
 /*
  * Submit IO for the read-ahead request in file_ra_state.
  */
@@ -437,9 +443,10 @@ EXPORT_SYMBOL_GPL(page_cache_sync_readahead);
  *            pagecache pages
  *
  * page_cache_async_ondemand() should be called when a page is used which
- * has the PG_readahead flag: this is a marker to suggest that the application
+ * has the PG_readahead flag; this is a marker to suggest that the application
  * has used up enough of the readahead window that we should start pulling in
- * more pages. */
+ * more pages.
+ */
 void
 page_cache_async_readahead(struct address_space *mapping,
                           struct file_ra_state *ra, struct file *filp,