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 61C983208; Tue, 7 Oct 2025 06:34:20 +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=1759818861; cv=none; b=XEdSVwKFNxUDUgFcun1shjpEtj6RQ40m2aX0f9EA+chpvaa/rCh7caf7cSbTngzKuOHvRI0gePi6HPJXYOlVbxIkVK5QY+JvhLf2lBK8JCgb4sDoIm+slDJp2hJP1McmuUi10gJ4w/+pZ2ioF/ZR5X9YXOD6OuTpQUGuOM+s3/g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759818861; c=relaxed/simple; bh=rb4OsNVu0Iz0mr+t9D7Pj11EdTEkOSc1p1lYVENw6OI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uPhvsSaY8dhviyG6Jw/Ao3/rYfh68GRW+I+UqkJDbbp4PRXyr3o4JOfFIrGwkNQAT4KfenBqFpADW4qJnGm4q3PRenxcE7Km4ST4+MgF2A9JArf4KF9/VAQuxR5vUQi0sg7KaoUcCTvL6s8CeuWtI+WtpZHkv8rXcTWMBHosCC4= 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=wK8UyY/F; 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="wK8UyY/F" 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=uVfcmzXuLVfDwhNrv1TlHQB+p2roeVM6ucFNuJd12fY=; b=wK8UyY/FgUQyb31PnejaUKkwpa XEmwvUlS6rQgQiXB2qWa7aS7EsrDolYMqYvooT2UVavUZenjq2NxqnmoCKCzOZ2cOBN6yW4DmkuNK xFNNlLVvx4/30OiectqlKBAsfZnhsFsZl2k27nF5LiJzB/2hyNh3/+k/YoMOmtSsSwDVBw0ahzG25 wr3R2NtaaeC9cqtM1QBLm05Ed7NAiZdcBF5Tpx1K9r8mwwd57kxn8/cGC73Xzj+F91L8YbdFBKo18 A2g4K7iFyWynn3zK3JIZZ6mrkVV01bP6qZU/56mHIZILVfBtdRrtHPCRHWcMLDmGR23vpjwkqpEG/ yvzyl5yw==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1v61H5-00000001NCF-2XwD; Tue, 07 Oct 2025 06:34:15 +0000 Date: Mon, 6 Oct 2025 23:34:15 -0700 From: Christoph Hellwig To: Vlastimil Babka Cc: Suren Baghdasaryan , "Liam R. Howlett" , Christoph Lameter , David Rientjes , Roman Gushchin , Harry Yoo , Uladzislau Rezki , Sidhartha Kumar , linux-mm@kvack.org, linux-kernel@vger.kernel.org, rcu@vger.kernel.org, maple-tree@lists.infradead.org, Alexei Starovoitov , Sebastian Andrzej Siewior , Venkat Rao Bagalkote , Qianfeng Rong , Wei Yang , "Matthew Wilcox (Oracle)" , Andrew Morton , Lorenzo Stoakes , WangYuli , Jann Horn , Pedro Falcato Subject: Re: [PATCH v8 00/23] SLUB percpu sheaves Message-ID: References: <20250910-slub-percpu-caches-v8-0-ca3099d8352c@suse.cz> Precedence: bulk X-Mailing-List: rcu@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: <20250910-slub-percpu-caches-v8-0-ca3099d8352c@suse.cz> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Wed, Sep 10, 2025 at 10:01:02AM +0200, Vlastimil Babka wrote: > Hi, > > I'm sending full v8 due to more changes in the middle of the series that > resulted in later patches being fixed up due to conflicts (details in > the changelog below). > The v8 will replace+extend the v7 in slab/for-next. So I've been reading through this and wonder how the preallocation using shaves is to be used. Do you have example code for that somewhere?