From mboxrd@z Thu Jan 1 00:00:00 1970 From: Erez Zadok Subject: [PATCH 5/9] Unionfs: clear partial read in readpage Date: Tue, 13 Nov 2007 05:10:24 -0500 Message-ID: <11949486303084-git-send-email-ezk@cs.sunysb.edu> References: <11949486283697-git-send-email-ezk@cs.sunysb.edu> Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, viro@ftp.linux.org.uk, hch@infradead.org, Erez Zadok , Hugh Dickins To: akpm@linux-foundation.org Return-path: Received: from filer.fsl.cs.sunysb.edu ([130.245.126.2]:50702 "EHLO filer.fsl.cs.sunysb.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753543AbXKMKK7 (ORCPT ); Tue, 13 Nov 2007 05:10:59 -0500 In-Reply-To: <11949486283697-git-send-email-ezk@cs.sunysb.edu> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Signed-off-by: Hugh Dickins Signed-off-by: Erez Zadok --- fs/unionfs/mmap.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/fs/unionfs/mmap.c b/fs/unionfs/mmap.c index 468dc61..bb00fd5 100644 --- a/fs/unionfs/mmap.c +++ b/fs/unionfs/mmap.c @@ -178,7 +178,8 @@ static int unionfs_do_readpage(struct file *file, struct page *page) err = vfs_read(lower_file, page_data, PAGE_CACHE_SIZE, &lower_file->f_pos); set_fs(old_fs); - + if (err >= 0 && err < PAGE_CACHE_SIZE) + memset(page_data + err, 0, PAGE_CACHE_SIZE - err); kunmap(page); if (err < 0) -- 1.5.2.2