[XFS] fix PBF_NONE handling

SGI-PV: 908809
SGI-Modid: xfs-linux:xfs-kern:198669a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 489b7f63fd1fe9d3e2faa997a6b976d22b586a2f..188cbbd5b74a437ac23f957983b0d766c5369de0 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -458,7 +458,8 @@ _pagebuf_lookup_pages(
                        unlock_page(bp->pb_pages[i]);
        }
 
-       bp->pb_flags &= ~PBF_NONE;
+       if (page_count)
+               bp->pb_flags &= ~PBF_NONE;
 
        PB_TRACE(bp, "lookup_pages", (long)page_count);
        return error;