LU-14622 osd: mark pages accessed on reads

to improve cache hit ratio

Signed-off-by: Alex Zhuravlev <bzzz@whamcloud.com>
Change-Id: If4850465d118ed62e9da105dc0cf144ff5041fd3
Reviewed-on: https://review.whamcloud.com/43367
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Wang Shilong <wshilong@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>

diff --git a/lustre/osd-ldiskfs/osd_io.c b/lustre/osd-ldiskfs/osd_io.c
index f8568c7..887ca25 100644 (file)
--- a/lustre/osd-ldiskfs/osd_io.c
+++ b/lustre/osd-ldiskfs/osd_io.c
@@ -44,6 +44,7 @@
 /* prerequisite for linux/xattr.h */
 #include <linux/fs.h>
 #include <linux/mm.h>
+#include <linux/swap.h>
 #include <linux/pagevec.h>
 
 /*
@@ -906,6 +907,8 @@ bypass_checks:
                        GOTO(cleanup, rc = -ENOMEM);
 
                lnb->lnb_locked = 1;
+               if (cache)
+                       mark_page_accessed(lnb->lnb_page);
        }
 
 #if 0