From 8dbece04f982cc6ceefb8eb4c39dbfd6d3620d49 Mon Sep 17 00:00:00 2001
From: bobijam <bobijam>
Date: Wed, 16 Sep 2009 11:18:20 +0000
Subject: [PATCH] Branch b1_8 b=20560 o=johann i=alex.zhuravlev i=zhenyu.xu
 (bobijam)

Discard pages if somehting failed after filter_preprw_write().
---
 lustre/obdfilter/filter_io_26.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lustre/obdfilter/filter_io_26.c b/lustre/obdfilter/filter_io_26.c
index 6cd82ef..a927af4 100644
--- a/lustre/obdfilter/filter_io_26.c
+++ b/lustre/obdfilter/filter_io_26.c
@@ -799,6 +799,13 @@ cleanup:
                 if (lnb->page == NULL)
                         continue;
 
+                if (rc)
+                        /* If the write has failed, the page cache may
+                         * not be consitent with what is on disk, so
+                         * force pages to be reread next time it is
+                         * accessed */
+                        ClearPageUptodate(lnb->page);
+
                 LASSERT(PageLocked(lnb->page));
                 unlock_page(lnb->page);
 
-- 
1.8.3.1