From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 00347CD3424 for ; Fri, 1 May 2026 12:35:10 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4g6Vqd1gcHz309S; Fri, 01 May 2026 22:35:09 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2600:3c0a:e001:78e:0:1991:8:25" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1777638909; cv=none; b=TeOKr8AcDFTDJ5cH55E/RBsLfsfZccQUP8LzChkoAITVyHiNby5LpNnL32DccTUXflu4qgfgEiot/XMSff9ONGuRb3M7giWskj/JJN0TJvzCYfj/k7OPZNS0xVMqRO2iTcbVu5b0AgF/cIao0Kw+vTM3/CvZBg6IFIhPHo3G3Vxi79Ahc7ady3Z4TbQ1FYdSbvYpM/fCPvUObW9j2prSSflXUCr34VK+jOQ4IPESfnN99rd8dFIjAzXNf+huwWb0t2rOLpgtheS4KF/mTL19IUPto6R7qM8MJA+K7rltNHKDi1mrCKU+q0E92XyUHFZwVmQCahz8KKRmjZqUR6QtUQ== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1777638909; c=relaxed/relaxed; bh=azQXaKXybCHrONQX5W4YggknOC8F4pIUdlVMzegOE2s=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=OPb9ha7xLkhIsbv5z/BFSxAxGN3ClBZ8kW4YVhTHsYEb/Wm0/3B/A8z24BjWYGS2rgET+b2FLSfp+xjXaBK/Bx1zoxBp7BnQBb81JNVxGThPPhly6/bfN03by296aY5rb0sra9CJ8bjDtLQc9+TIigiyFUn8Agc/mZoHVuoo6DcL4JDq1vFZu+lei6clOgg034zwoxxyq7M5JHKSbhmqOFocv8QAFuRQneQb6araltdNVdVwurEr+0/j5rJuKU3EhaYRH2+umisq4XjwN1reTisK3RCkLOyKv1/eA/5ksV77TmyKQLARjJb2IyASwjhGOohXhyLgZw0pGZcJD5QEzg== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=linuxfoundation.org; dkim=pass (1024-bit key; unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=1znK2l1/; dkim-atps=neutral; spf=pass (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=gregkh@linuxfoundation.org; receiver=lists.ozlabs.org) smtp.mailfrom=linuxfoundation.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=1znK2l1/; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linuxfoundation.org (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=gregkh@linuxfoundation.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [IPv6:2600:3c0a:e001:78e:0:1991:8:25]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4g6Vqc2hlpz2xWY for ; Fri, 01 May 2026 22:35:08 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 311D444507; Fri, 1 May 2026 12:35:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B8F2BC2BCB4; Fri, 1 May 2026 12:35:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1777638905; bh=uWujSkS65OCZCs8cEp7HzeMVkNPZQiKkazq0ytU2mz4=; h=Subject:To:Cc:From:Date:From; b=1znK2l1/tYlISpshGLD6rcx7Vamkn4psI7hL9prwWsUT4gGlt/F8uZQnfWqyy4Lax BK5LQ4YbHvn4sVGz0Sa8B/necU0RaL9V0r27/anTnadajiSQYRyJ+O4iLxTKL1mvYG 57KqIhjNDJrfcC9x2zDGOv6XRe0CvNRtYZg7xnVU= Subject: Patch "fs: prepare for adding LSM blob to backing_file" has been added to the 6.18-stable tree To: amir73il@gmail.com,gregkh@linuxfoundation.org,linux-erofs@lists.ozlabs.org,paul@paul-moore.com,serge@hallyn.com Cc: From: Date: Fri, 01 May 2026 14:34:54 +0200 Message-ID: <2026050153-effects-jumbo-f71c@gregkh> X-Mailing-List: linux-erofs@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit X-stable: commit X-Patchwork-Hint: ignore This is a note to let you know that I've just added the patch titled fs: prepare for adding LSM blob to backing_file to the 6.18-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: fs-prepare-for-adding-lsm-blob-to-backing_file.patch and it can be found in the queue-6.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >From 880bd496ec72a6dcb00cb70c430ef752ba242ae7 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Mon, 30 Mar 2026 10:27:51 +0200 Subject: fs: prepare for adding LSM blob to backing_file From: Amir Goldstein commit 880bd496ec72a6dcb00cb70c430ef752ba242ae7 upstream. In preparation to adding LSM blob to backing_file struct, factor out helpers init_backing_file() and backing_file_free(). Cc: stable@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org Cc: linux-unionfs@vger.kernel.org Cc: linux-erofs@lists.ozlabs.org Signed-off-by: Amir Goldstein Reviewed-by: Serge Hallyn [PM: use the term "LSM blob", fix comment style to match file] Signed-off-by: Paul Moore Signed-off-by: Greg Kroah-Hartman --- fs/file_table.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) --- a/fs/file_table.c +++ b/fs/file_table.c @@ -66,6 +66,12 @@ void backing_file_set_user_path(struct f } EXPORT_SYMBOL_GPL(backing_file_set_user_path); +static inline void backing_file_free(struct backing_file *ff) +{ + path_put(&ff->user_path); + kmem_cache_free(bfilp_cachep, ff); +} + static inline void file_free(struct file *f) { security_file_free(f); @@ -73,8 +79,7 @@ static inline void file_free(struct file percpu_counter_dec(&nr_files); put_cred(f->f_cred); if (unlikely(f->f_mode & FMODE_BACKING)) { - path_put(backing_file_user_path(f)); - kmem_cache_free(bfilp_cachep, backing_file(f)); + backing_file_free(backing_file(f)); } else { kmem_cache_free(filp_cachep, f); } @@ -283,6 +288,12 @@ struct file *alloc_empty_file_noaccount( return f; } +static int init_backing_file(struct backing_file *ff) +{ + memset(&ff->user_path, 0, sizeof(ff->user_path)); + return 0; +} + /* * Variant of alloc_empty_file() that allocates a backing_file container * and doesn't check and modify nr_files. @@ -305,7 +316,14 @@ struct file *alloc_empty_backing_file(in return ERR_PTR(error); } + /* The f_mode flags must be set before fput(). */ ff->file.f_mode |= FMODE_BACKING | FMODE_NOACCOUNT; + error = init_backing_file(ff); + if (unlikely(error)) { + fput(&ff->file); + return ERR_PTR(error); + } + return &ff->file; } Patches currently in stable-queue which might be from amir73il@gmail.com are queue-6.18/fs-prepare-for-adding-lsm-blob-to-backing_file.patch