X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=mm%2Freadahead.c;h=1fa0d6fca5563803da82fa6f7d79b3ff6954c074;hb=8e524793fdfb061fc31936d9adaa026d7bdc916c;hp=0de2360d65f3f4f4cce4e0ae94f02d78a51a2429;hpb=b3a4bcaa5a56860610bd096829702f80273b5a67;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/mm/readahead.c b/mm/readahead.c
index 0de2360..1fa0d6f 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -233,14 +233,14 @@ int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
 	return 0;
 }
 
+#define MAX_READAHEAD   ((512*4096)/PAGE_CACHE_SIZE)
 /*
  * Given a desired number of PAGE_CACHE_SIZE readahead pages, return a
  * sensible upper limit.
  */
 unsigned long max_sane_readahead(unsigned long nr)
 {
-	return min(nr, (node_page_state(numa_node_id(), NR_INACTIVE_FILE)
-		+ node_page_state(numa_node_id(), NR_FREE_PAGES)) / 2);
+	return min(nr, MAX_READAHEAD);
 }
 
 /*