X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=mm%2Freadahead.c;h=dfa9a1a03a116c7659d0d71134a3450a8d69026f;hb=646d87b481dab4ba8301716600dfd276605b0ab0;hp=033bc135a41f3885cae863ca0c9f5185d6c5d665;hpb=675c60706cd197219c6e3e6e3f195475d842344e;p=~andy%2Flinux

diff --git a/mm/readahead.c b/mm/readahead.c
index 033bc135a41..dfa9a1a03a1 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -9,6 +9,7 @@
 
 #include <linux/kernel.h>
 #include <linux/fs.h>
+#include <linux/gfp.h>
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/blkdev.h>
@@ -501,6 +502,12 @@ void page_cache_sync_readahead(struct address_space *mapping,
 	if (!ra->ra_pages)
 		return;
 
+	/* be dumb */
+	if (filp && (filp->f_mode & FMODE_RANDOM)) {
+		force_page_cache_readahead(mapping, filp, offset, req_size);
+		return;
+	}
+
 	/* do read-ahead */
 	ondemand_readahead(mapping, ra, filp, false, offset, req_size);
 }