From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) (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 4ACBE3A6B78 for ; Tue, 21 Jul 2026 14:30:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=18.9.28.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784644210; cv=none; b=YHbVtXAN2XmLetIVO5+zDaRRPJgvAIfyPGc+cmL7DLkXcr6EQbV1/QfG6qKSuoSTHLx0pWIb0zvJWzUeqF6XcceSDOZyHSLiWAnl6AdKKqH4UkSJMHXtTXM86jQ3kirQCbIWhrvL/iIMJ4oYxm+R0Hvz7RU6R7lFD9diYXTUIKs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784644210; c=relaxed/simple; bh=bFFk8zgkySDPWs21DeUVG7O0wL5elAJGSodVRejPgwc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=f5L1RTgxXgKXbFydiMDOwY8DDubuMNQgqotZPW06rR4WBf9ChjzThO0IoTWgCADuX+Glq7w44EKeFXbwEQWLQ6YIZtq54fWDZGf0qp3pVPnuVNHN1dxTr9U2x0PMHRsjaKl/BAKEhzvxKrpVc6vYidklOngw8qJ67Z9x1HRQzJs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mit.edu; spf=pass smtp.mailfrom=mit.edu; dkim=pass (2048-bit key) header.d=mit.edu header.i=@mit.edu header.b=RF4Jl5Og; arc=none smtp.client-ip=18.9.28.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mit.edu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mit.edu Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mit.edu header.i=@mit.edu header.b="RF4Jl5Og" Received: from macsyma.thunk.org (pool-108-49-65-18.bstnma.fios.verizon.net [108.49.65.18]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 66LETtwl023742 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Jul 2026 10:29:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing; t=1784644198; bh=ouFWh6IaU+DPbLrIKJfznZDajsuzKSi5rlJeA5mT0so=; h=Date:From:Subject:Message-ID:MIME-Version:Content-Type; b=RF4Jl5OgbM59C7taleWFMJPJr5ZCFNnBhVEhAkh6Zux/OiNWlTxYgW4h3JewA4m3t VIGcP4yJEOEbfUHnCh6M0VCz9s4JcfCtUS3zOhmVupd2vZXU69wvmVeJlxmSETIiaU Q1IarBHOQihh2nomAl2at8agiEOFM0ZdlL2558EBo0m55Z6Ily/pDlJvhKZ+A8Y7Fr a5sKHTJzWLsFr2jW3+WVGwQNS9aNX+XESIW5e+35ydhK3zHMMcDtcvYdxguR7cZlYc 7UlantayhN3SCjTVX8QY4S5694sxQHusV/4AyvSEhKMAHnX35pv3GRmLnX/MnXM81v 9ut+LWTdKoXlg== Received: by macsyma.thunk.org (Postfix, from userid 15806) id 0522FB8543B; Tue, 21 Jul 2026 10:28:54 -0400 (EDT) Date: Tue, 21 Jul 2026 10:28:54 -0400 From: "Theodore Tso" To: Helen Koike Cc: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-dev@igalia.com Subject: Re: [PATCH] ext4: skip i_extra_isize expansion during inode eviction Message-ID: References: <20260715175253.2171303-1-koike@igalia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260715175253.2171303-1-koike@igalia.com> On Wed, Jul 15, 2026 at 02:52:25PM -0500, Helen Koike wrote: > __ext4_mark_inode_dirty may be called from the eviction/free path (via > ext4_truncate ??? ext4_ext_truncate ??? mark_inode_dirty), which may call > ext4_try_to_expand_extra_isize() that could create a new EA inode, > wasting work that will be immediately discarded. > > Skip the expansion when the inode is transitioning to freed. > > Signed-off-by: Helen Koike This issue has been addressed via the patch[1] "ext4: set EXT4_STATE_NO_EXPAND in ext4_evict_inode". [1] https://patch.msgid.link/20260623061903.2148767-2-yun.zhou@windriver.com Thanks, - Ted