From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72F29C77B78 for ; Wed, 26 Apr 2023 04:12:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239387AbjDZEMj (ORCPT ); Wed, 26 Apr 2023 00:12:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60552 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239378AbjDZEMg (ORCPT ); Wed, 26 Apr 2023 00:12:36 -0400 Received: from mail-pg1-x536.google.com (mail-pg1-x536.google.com [IPv6:2607:f8b0:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23FB826B9 for ; Tue, 25 Apr 2023 21:12:35 -0700 (PDT) Received: by mail-pg1-x536.google.com with SMTP id 41be03b00d2f7-51f597c975fso6706707a12.0 for ; Tue, 25 Apr 2023 21:12:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1682482354; x=1685074354; h=references:in-reply-to:references:in-reply-to:message-id:date :subject:cc:to:from:from:to:cc:subject:date:message-id:reply-to; bh=X1WEqmaMBFmHP4p7ngRgW+kux9X7VvJXBfEqvQ44Wow=; b=FkNan6seMjrCrf/+Y0Ne53q39DQC2hptzm8MXKt6vLlLuxLwlRNRrFs8YFuWKByRS5 M/sOGNSLfOa+fFffafOUQbpHFS0qET5gxIGdgyOdiEkYC6o3QcUFEZHP5lmslR1DqJr6 3cYklHnsd6GZ6g2uL9oLhcZV6gT1NXzKcDAMiuH5eZ0WL+xX/hAoyhxLBZBWACuQFCC5 G18s+WD22+5jJCyrORTFE0lIQhE0QNJ0M8avMMIU5aA8ET3uLmcegPdswv8wvy0RxAKP CAdzT/QLHCoAAtACqUg73dXNGlInjK7+wI2M99AS12hM4rJwpItoZNt7jPF9P9LlVnCO zSnQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682482354; x=1685074354; h=references:in-reply-to:references:in-reply-to:message-id:date :subject:cc:to:from:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=X1WEqmaMBFmHP4p7ngRgW+kux9X7VvJXBfEqvQ44Wow=; b=Do+SwR2I9LRoGpZ7wVI8q4HlewOJpiFKGEDuyqwkwmZ7O6NrQzDnhi/MAovWTf8R0w /wQf099jmL9lmEh/QQww+xxff/LErISn5n6p/JbioXw0WQ8xZci76Fboh9PWayi8eZZ9 Zn5EymKdB4uu9eTlmQSI7VsL1p9sZGaC382dMDRhzc8pX9rhqeTaEFD7ffpivLlthNlC KoW4oFhy+DbMvDLohNeIR4Kz0ihrIFJRBtaffx1I0z2kY9Ng55V614gWKv3FqBu9m1S4 bdReJjW7icCdnmSmQhT4QxUHdLw9Fdx4c1wfuB7WFXNbVQiGRL/fG7YCD5cExJYdO+D3 2Sfg== X-Gm-Message-State: AAQBX9fs4vHa6BBeEtkHo/DfRL1R7IwgzkwLErDxIVt5HqXblrXRjm6d bxe2VzrMLXZigKUuVIN5zQU= X-Google-Smtp-Source: AKy350bN3ku3tn8Ik9slYIdmFWsMuTaJMXfPG00UyeUr8poZu/xi8hZysYSE9D9VZJN7JMNKfEPt0A== X-Received: by 2002:a17:902:dacc:b0:19e:ab29:1ec2 with SMTP id q12-20020a170902dacc00b0019eab291ec2mr26919278plx.65.1682482354637; Tue, 25 Apr 2023 21:12:34 -0700 (PDT) Received: from localhost.localdomain ([156.236.96.165]) by smtp.gmail.com with ESMTPSA id t5-20020a170902bc4500b001a68d613ad9sm8983193plz.132.2023.04.25.21.12.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Apr 2023 21:12:34 -0700 (PDT) From: Yue Hu To: xiang@kernel.org, chao@kernel.org, linux-erofs@lists.ozlabs.org Cc: jefflexu@linux.alibaba.com, huyue2@coolpad.com, linux-kernel@vger.kernel.org, zhangwen@coolpad.com Subject: [PATCH 2/2] erofs: replace global decompressors[] with stack memory Date: Wed, 26 Apr 2023 12:10:27 +0800 Message-Id: X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yue Hu Note that only z_erofs_decompress() is using the decompressors[], so no need to keep it as global resource, just use local one instead. Signed-off-by: Yue Hu --- fs/erofs/decompressor.c | 33 ++++++++++++++++----------------- 1 file changed, 16 insertions(+), 17 deletions(-) diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c index f416ebd6f0dc..91d91bdd068f 100644 --- a/fs/erofs/decompressor.c +++ b/fs/erofs/decompressor.c @@ -368,25 +368,24 @@ struct z_erofs_decompressor { struct page **pagepool); }; -static struct z_erofs_decompressor decompressors[] = { - [Z_EROFS_COMPRESSION_SHIFTED] = { - .decompress = z_erofs_transform_plain, - }, - [Z_EROFS_COMPRESSION_INTERLACED] = { - .decompress = z_erofs_transform_plain, - }, - [Z_EROFS_COMPRESSION_LZ4] = { - .decompress = z_erofs_lz4_decompress, - }, -#ifdef CONFIG_EROFS_FS_ZIP_LZMA - [Z_EROFS_COMPRESSION_LZMA] = { - .decompress = z_erofs_lzma_decompress, - }, -#endif -}; - int z_erofs_decompress(struct z_erofs_decompress_req *rq, struct page **pagepool) { + struct z_erofs_decompressor decompressors[] = { + [Z_EROFS_COMPRESSION_SHIFTED] = { + .decompress = z_erofs_transform_plain, + }, + [Z_EROFS_COMPRESSION_INTERLACED] = { + .decompress = z_erofs_transform_plain, + }, + [Z_EROFS_COMPRESSION_LZ4] = { + .decompress = z_erofs_lz4_decompress, + }, +#ifdef CONFIG_EROFS_FS_ZIP_LZMA + [Z_EROFS_COMPRESSION_LZMA] = { + .decompress = z_erofs_lzma_decompress, + }, +#endif + }; return decompressors[rq->alg].decompress(rq, pagepool); } -- 2.17.1