From 6e3037c4a9f0303ed5c500ff9f73bad0199595ec Mon Sep 17 00:00:00 2001
From: green <green>
Date: Fri, 8 Apr 2005 07:23:09 +0000
Subject: [PATCH] r=adilger Small optimisation. Do not drop partially truncated
 page from cache on client, so that when later somebody decides to write
 there, we won't need to fetch it from OST again (synchronously).

---
 lustre/llite/rw26.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lustre/llite/rw26.c b/lustre/llite/rw26.c
index 07b0d45..f9699ed 100644
--- a/lustre/llite/rw26.c
+++ b/lustre/llite/rw26.c
@@ -61,6 +61,8 @@ static int ll_writepage_26(struct page *page, struct writeback_control *wbc)
    locked page too */
 static int ll_invalidatepage(struct page *page, unsigned long offset)
 {
+        if (offset)
+                return 0;
         if (PagePrivate(page))
                 ll_removepage(page);
         return 1;
-- 
1.8.3.1