From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9B0B3392815; Wed, 11 Mar 2026 21:57:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773266235; cv=none; b=TwFIk5w99iIJwQSdN+eoLp7doftqRvwfLG4zkYaOHXS9mQvIXAZOFsISYmlbv3YGsli4w3+cbM+L4rhfG2PPA10q/scgN3e0AcKUZ/9gf0DHA5JykA16JjbOqCORQuzQNXbZkTxj60JOW+eWaH05fdRU1tkBj1cXCT8tj/8ewSY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773266235; c=relaxed/simple; bh=zpm4hd+wIcjeaifr6xKhl0IkBvsmP9oA9cAqeLdt59o=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=g3l7xsYI4AcfLxkf4Zgq3R+hhJW6cIGH8o62X5M+vJ8BCm6p7psatA8bhEx2s4Q/YX7Mw8KX7Wnkbsdjzfkg4lkr920p5WLSMYOPJlO9ulcN9VuY8xpdLIFGpmKOaaewLiXRKUKiboKa0A1B7DOj2Qshx9XaxLGcHFq4ne9Nr9o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QzbhvaS8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="QzbhvaS8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7A30CC4CEF7; Wed, 11 Mar 2026 21:57:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773266235; bh=zpm4hd+wIcjeaifr6xKhl0IkBvsmP9oA9cAqeLdt59o=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=QzbhvaS8OsYWWBU/u8HELtc1386UwtP4FdC0+JzbwciFLlXk/reih9u2mHYQG5E5b bwvYFe/0Ok5VNY7W4y8OyyQAqo0z2E5brbCyi3m9VNHIx0S5m6sqs3vEPW4wOKngwN qxCPfZ7Xw9f4Lp6K3XW4FcvTcPrAOHDl+cSHBFTssSKKT4nUZDvKEBmIswrjHo5gvI 0AhTa/Z9MJHyS9egNVRhqd2dJPVgMotgRY8JvDi2yinY94BL7kGjMs43Sp0KmFn62p OuyjbtC+JXkGGjwMr5QnRvrdgtsp6iSWlBOV0uZJibeMkShH/AWfYHyHWdEqiu6urh xy6M8xongzAvw== From: Christian Brauner Date: Wed, 11 Mar 2026 22:44:09 +0100 Subject: [PATCH RFC v3 26/26] fs: stop rewriting paths for PF_EXITING | PF_DUMPCORE Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260311-work-kthread-nullfs-v3-26-3dd2cbe92ad0@kernel.org> References: <20260311-work-kthread-nullfs-v3-0-3dd2cbe92ad0@kernel.org> In-Reply-To: <20260311-work-kthread-nullfs-v3-0-3dd2cbe92ad0@kernel.org> To: linux-fsdevel@vger.kernel.org Cc: Linus Torvalds , linux-kernel@vger.kernel.org, Alexander Viro , Jens Axboe , Jan Kara , Tejun Heo , Jann Horn , Christian Brauner X-Mailer: b4 0.15-dev-9fd7c X-Developer-Signature: v=1; a=openpgp-sha256; l=779; i=brauner@kernel.org; h=from:subject:message-id; bh=zpm4hd+wIcjeaifr6xKhl0IkBvsmP9oA9cAqeLdt59o=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWRufPJr6a9V3trnzyf89/+uO6NNJVlF6pi14CeRyA4lk 4/KdvNlO0pZGMS4GGTFFFkc2k3C5ZbzVGw2ytSAmcPKBDKEgYtTACZytY/hn2LPv9ddxqwMq7nU G65fsL9zxMxPdutU/y/BVaoxe1b+2c3wT2OnyQIPbWkDhzMhGy7KN17PPbbOoKfZivfu0Rtisy+ vZwMA X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 If the task is dead or dumping core stop messing with its fs struct. There's no point in doing that. Worst case it'll be stuck in a stale path until it calls exit_fs(). Signed-off-by: Christian Brauner --- fs/fs_struct.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/fs_struct.c b/fs/fs_struct.c index 2a98cfbedd32..34699f3b6f88 100644 --- a/fs/fs_struct.c +++ b/fs/fs_struct.c @@ -61,8 +61,7 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root) read_lock(&tasklist_lock); for_each_process_thread(g, p) { - /* leave kthreads alone */ - if (p->flags & PF_KTHREAD) + if (p->flags & (PF_KTHREAD | PF_EXITING | PF_DUMPCORE)) continue; task_lock(p); -- 2.47.3