From: Johann Lombardi <johann@whamcloud.com>
Date: Thu, 7 Apr 2011 18:55:29 +0000 (-0700)
Subject: LU-130 disable page migration
X-Git-Tag: 2.0.60.0~17
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=31eea565c0f94f23455d6f9d2bb926a4a53f5b6c

LU-130 disable page migration

Disable page migration until we implement a proper ->migratepage handler.

Change-Id: Ia98397db2ed6f6149b2708805320a5e929734308
Signed-off-by: Johann Lombardi <johann@whamcloud.com>
Reviewed-on: http://review.whamcloud.com/399
Tested-by: Hudson
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Lai Siyao <laisiyao@whamcloud.com>
---

diff --git a/lustre/llite/rw26.c b/lustre/llite/rw26.c
index 3475469..d2137f7 100644
--- a/lustre/llite/rw26.c
+++ b/lustre/llite/rw26.c
@@ -507,6 +507,15 @@ static int ll_write_end(struct file *file, struct address_space *mapping,
 }
 #endif
 
+#ifdef CONFIG_MIGRATION
+int ll_migratepage(struct address_space *mapping,
+                   struct page *newpage, struct page *page)
+{
+        /* Always fail page migration until we have a proper implementation */
+        return -EIO;
+}
+#endif
+
 struct address_space_operations ll_aops = {
         .readpage       = ll_readpage,
 //        .readpages      = ll_readpages,
@@ -524,5 +533,8 @@ struct address_space_operations ll_aops = {
 #endif
         .invalidatepage = ll_invalidatepage,
         .releasepage    = (void *)ll_releasepage,
+#ifdef CONFIG_MIGRATION
+        .migratepage    = ll_migratepage,
+#endif
         .bmap           = NULL
 };