From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 6998260B9C; Tue, 30 Jan 2024 15:57:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706630255; cv=none; b=It5iUT/z9RPxec3L47nbxsAEYMyYEaEmUnob3kfKOisUQaAF8BSfwTQNDYU1QNIQb8gNjLemd7iO4kEX98O7IzRO8y5+5CiluXx64iorqnvd6CpMdgCqdJbYNA0+hq9K9h54actHlCBi/z22RN+jvlC9mOTW9iOC0MjpdtNEjng= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706630255; c=relaxed/simple; bh=jAoBcGW3ZHozXc2DsAC7JkkvJtdAbp7g4SQEqnThwIU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=awwijhRC5YEW/IpVWzhs6BCENVxpdVCEI2yRH4+HeH4XOfqXIyrvCujeO+yCZ9DC+FNDBRQWAwouCo+1q4SRbqL1mp4ux4t9i59y2PrUjMXXU853gLHRIa7PYyWTKNlTE2/3GW3BZf6iZaX0LcqqCtEc0YPykgY3kYgMPDWgMd4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=rhtipgg+; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="rhtipgg+" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=jAoBcGW3ZHozXc2DsAC7JkkvJtdAbp7g4SQEqnThwIU=; b=rhtipgg+iPpTqSsPN0YjIcsv1q sSvuXVNm63fYRxI8XchuOHJ6Z9Xc/vE724WIvsH3bsSXdV/YyZAtl0ebzq8wAwADfZRuIYDdcznUK Vw5Lr+maiTNV1Z1Cnf3++xTfhNv1lo3l3T7ZRUlb7ukfkKy7oW9rfog5/EGNEeHUZo1bwmqwaTF5b QPtyHBtmInepMVwLjKa49zY+RW+Ih92Q7OwpRyIqJOAIuR68a6irh/zebn6OOCwaMn4gKgP5DSfvx SaQ8hPD06MPlgeujVV/L/cbIxrDnsMi50sIbTYBg38AUoYQOFSLdOqOfW2NH2MGA9nBSB/1C3+/WM /yeCzDyw==; Received: from hch by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1rUqUK-0000000HGGz-3F8c; Tue, 30 Jan 2024 15:57:28 +0000 Date: Tue, 30 Jan 2024 07:57:28 -0800 From: Christoph Hellwig To: Jan Kara Cc: syzbot , akpm@linux-foundation.org, axboe@kernel.dk, brauner@kernel.org, chenzhongjin@huawei.com, dchinner@redhat.com, hch@infradead.org, hch@lst.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, penguin-kernel@i-love.sakura.ne.jp, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk, willy@infradead.org Subject: Re: [syzbot] [fs?] BUG: sleeping function called from invalid context in __getblk_gfp Message-ID: References: <0000000000000ccf9a05ee84f5b0@google.com> <0000000000000d130006101f7e0e@google.com> <20240130115430.rljjwjcji3vlrgyz@quack3> 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: <20240130115430.rljjwjcji3vlrgyz@quack3> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Tue, Jan 30, 2024 at 12:54:30PM +0100, Jan Kara wrote: > sb_bread() under a RWLOCK - pointers_lock - in get_block(). Which more or > less shows nobody has run sysv in ages because otherwise the chances of > sleeping in atomic context are really high? Perhaps another candidate for > removal? I'd be fine with it, but I think Al has an attachment to it :)