From patchwork Mon Jun 7 16:08:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: yong w X-Patchwork-Id: 12303995 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1DB69C47082 for ; Mon, 7 Jun 2021 16:10:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F32CA61208 for ; Mon, 7 Jun 2021 16:10:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230361AbhFGQLy (ORCPT ); Mon, 7 Jun 2021 12:11:54 -0400 Received: from mail-lj1-f172.google.com ([209.85.208.172]:39502 "EHLO mail-lj1-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230220AbhFGQLy (ORCPT ); Mon, 7 Jun 2021 12:11:54 -0400 Received: by mail-lj1-f172.google.com with SMTP id c11so22987447ljd.6; Mon, 07 Jun 2021 09:09:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id; bh=MYkqiK7m+ECOse6aKTh/fCSqnKb+04pUb9T9G4LvlIg=; b=JMFabLq3Atd4NY8eWNboP2Eisic136L+v57USfJnEXoIk0YUccnQ4vkiNoGY7NLbYL cpz1TwU2nCakrgh+PQJ/zmSzm53oe+TAoJlHh8bRL85Gc3wPBEteXbmSG3SkAyj22Swm LSgpRxrNCXx0eiHdkUaMIHHhC+OhlL9IIT/Acgr5XA0C56a6AYH7JkP5ZCNVlu5CRWOL Zx6QltCN8pP8iZvSMwKGVyeysF7+Tgj1WONJxJJM+NaLWhVd/XcBk5cBNOZsuZsZlJQw jwQWj6Hpd7dddmliE1KumlO1s9wsbfwLZoDP3l/nthY2wwDRqzF5Mpj5uvIUZrfAQbCs hqVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id; bh=MYkqiK7m+ECOse6aKTh/fCSqnKb+04pUb9T9G4LvlIg=; b=Wf38StiNIiI22fi5CXDjPztXK24g7TF+jxPalF6jjNqqVDhZbcptyfbIEC0d85BF5K Ji1B8sn7sGaD952/iBy/EXRRGreRCrRqcsscnpsLRS4fjimSXsgx8KLcSkEUqfghj171 f6kKKn2P+Lk07oklYky+DMOPwHFZXaZ0KoI6wy4k7jh90EYE02jX0fBsHsqiAXEZLbFS ALSF+fbloxvG2bxUOyHWe1SIqYefV+72eRjCmX/Q7jxoaiDid+4svTn8Brpo1lyp8Mht IIGUKgKbGtl+OwuoH1rJ+lnQqizILye/5D3Bvww08/X9/Huyq/y6eRWpqR5JTjXAxu2Y hSUg== X-Gm-Message-State: AOAM532Rs07UvV+M6w5J72j3lluVTi3XHS0mp7KjlKUdfltICb5Vsh/q pNPbFnWDupxjjYF3t2VGiDc= X-Google-Smtp-Source: ABdhPJyAAx/akxlrC8sMLSO0CIkPp4Kd6A78ZxJ5+8gGMYLi/5CnGoU4P9dVApRFdU5FCJ7D+fL9tA== X-Received: by 2002:a2e:530e:: with SMTP id h14mr15325335ljb.454.1623082126712; Mon, 07 Jun 2021 09:08:46 -0700 (PDT) Received: from localhost.localdomain ([51.15.119.249]) by smtp.gmail.com with ESMTPSA id q2sm1462576ljj.7.2021.06.07.09.08.42 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Jun 2021 09:08:46 -0700 (PDT) From: yongw.pur@gmail.com To: minchan@kernel.org, ngupta@vflare.org, senozhatsky@chromium.org, axboe@kernel.dk, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, wang.yong12@zte.com.cn Subject: [PATCH] zram: zcomp_strm remove ambiguous description Date: Mon, 7 Jun 2021 09:08:20 -0700 Message-Id: <1623082100-22086-1-git-send-email-yongw.pur@gmail.com> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: wangyong buffer element in the structure is only used for compression. buffer element is not used in decompression. So "/* compression/decompression buffer */" is a little ambiguous. buffer is used in the following two places: 1.__zram_bvec_write: src = zstrm->buffer 2.zcomp_compress: crypto_comp_compress(zstrm->tfm, src, PAGE_SIZE, zstrm->buffer, dst_len); Signed-off-by: wangyong --- drivers/block/zram/zcomp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/zram/zcomp.h b/drivers/block/zram/zcomp.h index 40f6420..0aac4b2 100644 --- a/drivers/block/zram/zcomp.h +++ b/drivers/block/zram/zcomp.h @@ -10,7 +10,7 @@ struct zcomp_strm { /* The members ->buffer and ->tfm are protected by ->lock. */ local_lock_t lock; - /* compression/decompression buffer */ + /* compression buffer */ void *buffer; struct crypto_comp *tfm; };