From patchwork Thu Feb 1 12:15:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Overstreet X-Patchwork-Id: 13540962 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74DD0C47DDB for ; Thu, 1 Feb 2024 12:16:12 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 020FF6B0072; Thu, 1 Feb 2024 07:16:12 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id F12A26B0074; Thu, 1 Feb 2024 07:16:11 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E014E6B0075; Thu, 1 Feb 2024 07:16:11 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id D1AC76B0072 for ; Thu, 1 Feb 2024 07:16:11 -0500 (EST) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 67E80140965 for ; Thu, 1 Feb 2024 12:16:11 +0000 (UTC) X-FDA: 81743132142.25.FA2FDBE Received: from out-176.mta0.migadu.com (out-176.mta0.migadu.com [91.218.175.176]) by imf04.hostedemail.com (Postfix) with ESMTP id 0252340013 for ; Thu, 1 Feb 2024 12:16:07 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=a8pz3HAP; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf04.hostedemail.com: domain of kent.overstreet@linux.dev designates 91.218.175.176 as permitted sender) smtp.mailfrom=kent.overstreet@linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1706789769; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:references:dkim-signature; bh=DXn332OF2Nezri5SswQGQslSjWIuLnO2TDmseJtI1io=; b=oAkoVJ56Wd/FsTK+R1+LcyYkvSI1nfz3JanUSx0EFMB3D+YsTSEyB8cA1EKcJ9CqpuoQ5A 5SYGOA6N2pvRNxBQclLkn7sGIEof6znqG/iUVWl4kpOK6xqxXtApQKx32N0GBZIdCmmZvB bRSeObiFhzpD6Oql4E136cVQofbgp/Y= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=a8pz3HAP; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf04.hostedemail.com: domain of kent.overstreet@linux.dev designates 91.218.175.176 as permitted sender) smtp.mailfrom=kent.overstreet@linux.dev ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1706789769; a=rsa-sha256; cv=none; b=NB+XirNaJATnL95w98FoedgME2S6ZO7sXie/xCoty3+DKZE3CB8NvIu+B74sSQ5h59QdlD sQf1K21K+pk63c5m+xQydr5qk1QR0NSEGM8GMPqd+KLycLQBg1uMuE+rgH7z9SWJVgIm+7 SRYv61gO6V0LZZs+CBIv7kR4l74My/Q= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1706789765; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=DXn332OF2Nezri5SswQGQslSjWIuLnO2TDmseJtI1io=; b=a8pz3HAPuCq6iaiWWxqzTSxoNmwNh7y5GucKDoGCuv+pU0PQEZFVnb5Kfh0KG+DsWZzjPl sMHWitmSLfjnOovtldMAwx/IoRkcH5m0D6VG08H4u5HXQOeIjeix3IJNa1ISEcRiX5MvGT MfzZunM/g6R7MFAspa9jBw7utA6GpU0= From: Kent Overstreet To: akpm@linux-foundation.org Cc: Kent Overstreet , linux-mm@kvack.org Subject: [PATCH] mempool: kvmalloc pool Date: Thu, 1 Feb 2024 07:15:44 -0500 Message-ID: <20240201121544.3820874-1-kent.overstreet@linux.dev> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 0252340013 X-Stat-Signature: 993adywzx1yu4np98pbqwk7cqigmobo7 X-Rspam-User: X-HE-Tag: 1706789767-285674 X-HE-Meta: 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 RkWtHERi PV1CDmm4Z7KMtlNNXwHrdFVVH5t9mNNBNFVZz+pjgQ5iIFg01UgYczlq+epTlKxU3FAgPWypBJBtN3SdjFHG+qtSaeL03ISVYSJ3nDPzCDWeczns3xtXcI/osZecgHc0RlGtffrZH8tc3270= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Add mempool_init_kvmalloc_pool() and mempool_create_kvmalloc_pool(), which wrap kvmalloc() instead of kmalloc() - kmalloc() with a vmalloc() fallback. Signed-off-by: Kent Overstreet Cc: linux-mm@kvack.org --- include/linux/mempool.h | 13 +++++++++++++ mm/mempool.c | 13 +++++++++++++ 2 files changed, 26 insertions(+) diff --git a/include/linux/mempool.h b/include/linux/mempool.h index 7be1e32e6d42..16c5cc807ff6 100644 --- a/include/linux/mempool.h +++ b/include/linux/mempool.h @@ -95,6 +95,19 @@ static inline mempool_t *mempool_create_kmalloc_pool(int min_nr, size_t size) (void *) size); } +void *mempool_kvmalloc(gfp_t gfp_mask, void *pool_data); +void mempool_kvfree(void *element, void *pool_data); + +static inline int mempool_init_kvmalloc_pool(mempool_t *pool, int min_nr, size_t size) +{ + return mempool_init(pool, min_nr, mempool_kvmalloc, mempool_kvfree, (void *) size); +} + +static inline mempool_t *mempool_create_kvmalloc_pool(int min_nr, size_t size) +{ + return mempool_create(min_nr, mempool_kvmalloc, mempool_kvfree, (void *) size); +} + /* * A mempool_alloc_t and mempool_free_t for a simple page allocator that * allocates pages of the order specified by pool_data diff --git a/mm/mempool.c b/mm/mempool.c index dbbf0e9fb424..076c736f5f1f 100644 --- a/mm/mempool.c +++ b/mm/mempool.c @@ -590,6 +590,19 @@ void mempool_kfree(void *element, void *pool_data) } EXPORT_SYMBOL(mempool_kfree); +void *mempool_kvmalloc(gfp_t gfp_mask, void *pool_data) +{ + size_t size = (size_t)pool_data; + return kvmalloc(size, gfp_mask); +} +EXPORT_SYMBOL(mempool_kvmalloc); + +void mempool_kvfree(void *element, void *pool_data) +{ + kvfree(element); +} +EXPORT_SYMBOL(mempool_kvfree); + /* * A simple mempool-backed page allocator that allocates pages * of the order specified by pool_data.