From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 D8AF430B525 for ; Fri, 17 Jul 2026 01:37:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784252280; cv=none; b=kPYBewdBffbq2rEcAyVJW95WnF7l6dBiPZK/PObwKzIpHUqQUg+/dVagkVxVj0m0JIcQYf80XkYKUwCsCC1GwVghHNuif5R/b1RKqG9Ba9kxUHTXifok2ot+XwRMePP8JILUiIzzHARuWacstTxzEb3wkoepoFf6mtoVdnvbIhY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784252280; c=relaxed/simple; bh=GHlxhrA5kT49zgEW2z/M0n0oAsDdrFoan0qGYHzJqvc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PTXD6zg+ME5O6Qasi67/XBMcb9ZAeuGfznicbqNyGf9/s4j29lNgc6vHbEd1UjsSl9V0LGrXyXMQKO8FNm5Xal9BJuw5mHEYGKHBxclfkDS8D7VjDLSwlgGn3+j/yHyfvFmGiil5hKXNUmzZiOb/oMDaxpmw01QsmIUm81cBqCM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LWENR13P; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="LWENR13P" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3F5F11F00A3A; Fri, 17 Jul 2026 01:37:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784252279; bh=kpXQ5jKkX3/ZKJb1q79DI8wzOiXSEgLcgv4Kvzoh9CY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=LWENR13PKOof0SWKhuotlES1y76Fkku4i8KnkOhMYXCJq+J1FAWIqpHGR+Tosr1S7 l1z0fecVtvD5hVfF/kidr5llFCajN7JW2SdBTMLkh9aLAVcwD8ZWm4qrzw+cmMctCP odFr/CaF2NZlEdb0+4nZq7zKyOSIK5aFcCMVzFaAbIGGq/itoXmIqpSs2YdY9w8VlH jzhfAaudvx9q+l5YREDfj8oTWueMiXi0MZqZO5NVQTOSthU8WXRv1tR97POl8PCwfe W+5RZODr708FFVSXSeJdApRAhPiZDJC8881qMEUeBAr1V9khmKPMWEhni9aO+r4cf+ oycKTraySdQqg== From: Sasha Levin To: stable@vger.kernel.org Cc: Sasha Levin , Shashank A P , Jan Kara Subject: Re: [PATCH 6.1.y] fs: quota: create dedicated workqueue for quota_release_work Date: Thu, 16 Jul 2026 21:37:37 -0400 Message-ID: <20260716232340.0012-stable-reply@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260715125138.668-1-shashank.ap@samsung.com> References: <20260715125138.668-1-shashank.ap@samsung.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Wed, Jul 15, 2026 at 06:21:37PM +0530, Shashank A P wrote: > This issue occurs when writeback is triggered due to sync call for an > opened file(ie, writeback reason is WB_REASON_SYNC). When f2fs balance > is needed at sync path, flush for quota_release_work is triggered. > By default quota_release_work is queued to "events_unbound" queue which > does not have WQ_MEM_RECLAIM flag. During f2fs balance "writeback" > workqueue tries to flush quota_release_work causing kernel panic due to > MEM_RECLAIM flag mismatch errors. Queued for 6.1, thanks. -- Thanks, Sasha