From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valerie Aurora Subject: [PATCH 23/38] union-mount: Call do_whiteout() on unlink and rmdir in unions Date: Fri, 25 Jun 2010 12:05:13 -0700 Message-ID: <1277492728-11446-24-git-send-email-vaurora@redhat.com> References: <1277492728-11446-1-git-send-email-vaurora@redhat.com> Cc: Miklos Szeredi , Jan Blunck , Christoph Hellwig , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Valerie Aurora To: Alexander Viro Return-path: In-Reply-To: <1277492728-11446-1-git-send-email-vaurora@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org From: Jan Blunck Call do_whiteout() when removing files and directories from a union mounted file system. Signed-off-by: Valerie Aurora --- fs/namei.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 3f969af..c17693f 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2595,6 +2595,10 @@ static long do_rmdir(int dfd, const char __user *pathname) error = security_path_rmdir(&nd.path, path.dentry); if (error) goto exit4; + if (IS_DIR_UNIONED(nd.path.dentry)) { + error = do_whiteout(&nd, &path, 1); + goto exit4; + } error = vfs_rmdir(nd.path.dentry->d_inode, path.dentry); exit4: mnt_drop_write(nd.path.mnt); @@ -2684,6 +2688,10 @@ static long do_unlinkat(int dfd, const char __user *pathname) error = security_path_unlink(&nd.path, path.dentry); if (error) goto exit3; + if (IS_DIR_UNIONED(nd.path.dentry)) { + error = do_whiteout(&nd, &path, 0); + goto exit3; + } error = vfs_unlink(nd.path.dentry->d_inode, path.dentry); exit3: mnt_drop_write(nd.path.mnt); -- 1.6.3.3