From: Mikhail Pershin <tappro@sun.com>
Date: Fri, 20 Aug 2010 19:25:26 +0000 (+0400)
Subject: b=22610 a truncate_complete_page fix
X-Git-Tag: 2.0.51.0~48
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;ds=sidebyside;h=7c27d9a67ada42a70b638ca1701dc298142934cc;hp=fe37a1bfe3fa8173e84100fbe5025def1439077c;p=fs%2Flustre-release.git

b=22610 a truncate_complete_page fix

truncate_complete_page implementation for the patchless
client could arbitrarily unset PG_Uptodate flag for a
page being kicked from the page cache, an uptodate check
right after a readpage call in filemap_fault could fail
because of that as though the page read had been unsuccessful.

i=Oleg Drokin
i=Johann Lombardi
---

diff --git a/lustre/include/linux/lustre_patchless_compat.h b/lustre/include/linux/lustre_patchless_compat.h
index 39fe8f9..17fbc5c 100644
--- a/lustre/include/linux/lustre_patchless_compat.h
+++ b/lustre/include/linux/lustre_patchless_compat.h
@@ -87,7 +87,6 @@ truncate_complete_page(struct address_space *mapping, struct page *page)
 #else
         clear_page_dirty(page);
 #endif
-        ClearPageUptodate(page);
         ClearPageMappedToDisk(page);
         ll_remove_from_page_cache(page);
         page_cache_release(page);       /* pagecache ref */