From patchwork Tue Feb 22 15:51:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12755524 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 4703A66A8 for ; Tue, 22 Feb 2022 15:52:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=dGQhQIoPlJnqAUJc5vnifIiGA4K4POjXLxE/uOxiIoI=; b=sbIZXXAIiSWc4J9AC0uUzCEZgE GMG40sphecLF+zJ9TgZC7QpQWNY4X6SKTT3/+29Z/ojTMZ2XeRjBVCxNEkRku2/IbDzEydM9dsIhH sZvZdW8mNY2eNTK9+4ZCzcuaiiXomF6TeNmJ4sC0k3/xsHt8Gnn8LUmG8Tzc0BVk28t7TJlhYXHAm UP3xQNnjfaOrs2ZSA6D6BZoAevyaOBvW/WgRJsI/QUi6LxsWuudhuYVVUNmc3ln0RcEIWOS5yGuWY qwUGdF3jRwL4KUK09Nqn0sMjjOK8RWXwkpOWiEY8v0eHQbGQk1jqpzR9iYbwBSixXPZHqNkteV/ao 6uai2Qaw==; Received: from [2001:4bb8:198:f8fc:c22a:ebfc:be8d:63c2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nMXSR-00APrX-8g; Tue, 22 Feb 2022 15:52:07 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Chris Zankel , Max Filippov , Justin Sanders , Philipp Reisner , Lars Ellenberg , Denis Efremov , Minchan Kim , Nitin Gupta , Coly Li , Dan Williams , Vishal Verma , linux-xtensa@linux-xtensa.org, linux-block@vger.kernel.org, drbd-dev@lists.linbit.com, linux-bcache@vger.kernel.org, nvdimm@lists.linux.dev Subject: [PATCH 03/10] zram: use memcpy_to_bvec in zram_bvec_read Date: Tue, 22 Feb 2022 16:51:49 +0100 Message-Id: <20220222155156.597597-4-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220222155156.597597-1-hch@lst.de> References: <20220222155156.597597-1-hch@lst.de> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Use the proper helper instead of open coding the copy. Signed-off-by: Christoph Hellwig Reviewed-by: Ira Weiny --- drivers/block/zram/zram_drv.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index a3a5e1e713268..14becdf2815df 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -1331,12 +1331,10 @@ static int zram_bvec_read(struct zram *zram, struct bio_vec *bvec, goto out; if (is_partial_io(bvec)) { - void *dst = kmap_atomic(bvec->bv_page); void *src = kmap_atomic(page); - memcpy(dst + bvec->bv_offset, src + offset, bvec->bv_len); + memcpy_to_bvec(bvec, src + offset); kunmap_atomic(src); - kunmap_atomic(dst); } out: if (is_partial_io(bvec))