From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:51384 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755398AbbFSUcb (ORCPT ); Fri, 19 Jun 2015 16:32:31 -0400 Subject: Patch "Btrfs: send, add missing check for dead clone root" has been added to the 4.0-stable tree To: fdmanana@suse.com, clm@fb.com, dsterba@suse.cz, gregkh@linuxfoundation.org Cc: , From: Date: Fri, 19 Jun 2015 13:32:29 -0700 Message-ID: <1434745949145204@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled Btrfs: send, add missing check for dead clone root to the 4.0-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: btrfs-send-add-missing-check-for-dead-clone-root.patch and it can be found in the queue-4.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 5cc2b17e80cf5770f2e585c2d90fd8af1b901258 Mon Sep 17 00:00:00 2001 From: Filipe Manana Date: Mon, 2 Mar 2015 20:53:52 +0000 Subject: Btrfs: send, add missing check for dead clone root From: Filipe Manana commit 5cc2b17e80cf5770f2e585c2d90fd8af1b901258 upstream. After we locked the root's root item, a concurrent snapshot deletion call might have set the dead flag on it. So check if the dead flag is set and abort if it is, just like we do for the parent root. Signed-off-by: Filipe Manana Reviewed-by: David Sterba Signed-off-by: Chris Mason Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/send.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -5855,7 +5855,8 @@ long btrfs_ioctl_send(struct file *mnt_f clone_sources_to_rollback = i + 1; spin_lock(&clone_root->root_item_lock); clone_root->send_in_progress++; - if (!btrfs_root_readonly(clone_root)) { + if (!btrfs_root_readonly(clone_root) || + btrfs_root_dead(clone_root)) { spin_unlock(&clone_root->root_item_lock); srcu_read_unlock(&fs_info->subvol_srcu, index); ret = -EPERM; Patches currently in stable-queue which might be from fdmanana@suse.com are queue-4.0/btrfs-send-add-missing-check-for-dead-clone-root.patch queue-4.0/btrfs-send-don-t-leave-without-decrementing-clone-root-s-send_progress.patch queue-4.0/btrfs-fix-range-cloning-when-same-inode-used-as-source-and-destination.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in