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 X-Spam-Level: X-Spam-Status: No, score=-6.3 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 F3F9EC54E4A for ; Fri, 8 May 2020 06:59:07 +0000 (UTC) Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B9B7A2173E; Fri, 8 May 2020 06:59:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sourceforge.net header.i=@sourceforge.net header.b="H8DSwD4n"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sf.net header.i=@sf.net header.b="E9afYvDm"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="G7/6rRT9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B9B7A2173E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linux-f2fs-devel-bounces@lists.sourceforge.net Received: from [127.0.0.1] (helo=sfs-ml-1.v29.lw.sourceforge.com) by sfs-ml-1.v29.lw.sourceforge.com with esmtp (Exim 4.90_1) (envelope-from ) id 1jWwyR-0006bn-9j; Fri, 08 May 2020 06:59:07 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-1.v29.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jWwyP-0006bX-Tl for linux-f2fs-devel@lists.sourceforge.net; Fri, 08 May 2020 06:59:05 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:Content-Type:Cc:To: Subject:Message-ID:Date:From:In-Reply-To:References:MIME-Version:Sender: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=pUqYbbEhhoBOpMJg82tH9U5Nj13y9+Ar796jHBZ0iuk=; b=H8DSwD4nbhZ10Jk64DKPNNR6Ho WkDd0MinYrzMY/RDR5XCavOT5MlW+D6388Scd9ScOcZvrqo4N+JgG5UOamVDZzvqVmuHZ+1mbmgNy DR96QkawCofQcPvGJ/1/HmT7Z9QwQ3wnhccl4/UQga8EmrnmUkSrVK9VJ606y2cUOkbI=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:Content-Type:Cc:To:Subject:Message-ID:Date:From :In-Reply-To:References:MIME-Version:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=pUqYbbEhhoBOpMJg82tH9U5Nj13y9+Ar796jHBZ0iuk=; b=E9afYvDmdSLdndaaOJdIFWLxst /O72giv+IPc32geMzaqX+Zzsw7i9x+1HAKBkYFFCPOdRL+OGhJbvmkFG5V6l+QyePcqbLGvdylx3z 0pdK1i1KcMSq3Qy9lqSsLV1mrdKYHpa6WC+RNPGloayRMeTh3aE/57kpUDDgP6O9vaFc=; Received: from mail-lj1-f196.google.com ([209.85.208.196]) by sfi-mx-1.v28.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.92.2) id 1jWwyL-001Nbh-U3 for linux-f2fs-devel@lists.sourceforge.net; Fri, 08 May 2020 06:59:05 +0000 Received: by mail-lj1-f196.google.com with SMTP id e25so541726ljg.5 for ; Thu, 07 May 2020 23:59:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=pUqYbbEhhoBOpMJg82tH9U5Nj13y9+Ar796jHBZ0iuk=; b=G7/6rRT9CAiKUhr1x2HJR1bBbUhx1FptG/OWbT6gPV4TchFejkTo8f/6hlCk2kNdGE NmNuSEztMvkKfI3NVQtmFm9WJID7r8OpPqDf2/mV0/YFYY6H+RDGU55qfEU1L47jhIZp qHkHz5jggUJmn0Tddvy/C21A/otqQ9CLoZFG6NiphUkV4tfAwr3G4tnN6Ph0bvw0o0Kn 6NBNrfLsGfVexLXDWyKyVG2L5RzaYMC4gH4g/cg8ruCX5rcJ1H0JuVb+5nAt8Q67WCSF miMHIMejlC7lFiV8E++ShTzwcy7qjRMba2rw5JhQliDfIal61viSDQBgiF52TusRnKmf b6vA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=pUqYbbEhhoBOpMJg82tH9U5Nj13y9+Ar796jHBZ0iuk=; b=eeBS5qMYzz7z08ZD86mETq/W84t13rWq2y3zSXBrAoLKhfROjIp4rstLRuQEI5XlzI 6zFIXjHw1fKvIhE36ktQgegXlfEPUOjnl/X6UR/krtEq6dzjBX/8f7TmHXt17BgwFAEc ZIc1pX9E7ioCCdS8ymnVj0wm4ElGjFIHSyN7Z9zshMvkN05IDwkOkQiDRArDrSedCv8H wJhj6OfMXhsLPKMRrU9vT7ZYLcuJLxf5ig9Cnl6CTnzGya4m+LPoLFpogq7D5kOq1E6R oQfS0AFVQRGnvCahBmiP71+LKqGClMdQ5Q1Abv8Jjgp3jdQH86MctvgJ5xcTJpSrGcRN V5nw== X-Gm-Message-State: AOAM531YnbMO0r3Oohla3SMsTu+53+s2UO6YEPwkV7wT6zqq+N5fcyMO 6NqZqgIeOhwvsh7mB0wzPMwjpOHfop0D/jaJuo8= X-Google-Smtp-Source: ABdhPJwYWccUNn8mMSZ9PrPSekN5RKemxE9AXxFxPy++X/nS71r2ozelfd1MrjkXAO62Yp0Cn2rbD/LEiYRGAGcUuUQ= X-Received: by 2002:a2e:97d3:: with SMTP id m19mr681437ljj.136.1588921135090; Thu, 07 May 2020 23:58:55 -0700 (PDT) MIME-Version: 1.0 References: <20200508042506.143395-1-daeho43@gmail.com> <4dfb73d9-03a0-bb2f-a112-1dd42db4d7bb@huawei.com> In-Reply-To: <4dfb73d9-03a0-bb2f-a112-1dd42db4d7bb@huawei.com> From: Daeho Jeong Date: Fri, 8 May 2020 15:58:44 +0900 Message-ID: To: Chao Yu X-Headers-End: 1jWwyL-001Nbh-U3 Subject: Re: [f2fs-dev] [PATCH] f2fs: remove race condition in releasing cblocks X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daeho Jeong , kernel-team@android.com, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net SSBtb3ZlZCBjaGVja2luZyBpX2NvbXByX2Jsb2NrcyBwaHJhc2UgYWZ0ZXIgY2FsbGluZyBpbm9k ZV9sb2NrKCkKYWxyZWFkeSwgYmVjYXVzZSB3ZSBzaG91bGQgY2hlY2sgdGhpcyBhZnRlciB3cml0 aW5nIHBhZ2VzLgoKU28sIGlmIGl0IGZhaWxzIHRvIGNoZWNrIGlfY29tcHJfYmxvY2tzLCB3ZSBu ZWVkIHRvIGNhbGwgaW5vZGVfdW5sb2NrKCkuCgpBbSBJIG1pc3Npbmcgc29tZXRoaW5nPwoKMjAy MOuFhCA17JuUIDjsnbwgKOq4iCkg7Jik7ZuEIDM6NTAsIENoYW8gWXUgPHl1Y2hhbzBAaHVhd2Vp LmNvbT7ri5jsnbQg7J6R7ISxOgo+Cj4gT24gMjAyMC81LzggMTI6MjUsIERhZWhvIEplb25nIHdy b3RlOgo+ID4gRnJvbTogRGFlaG8gSmVvbmcgPGRhZWhvamVvbmdAZ29vZ2xlLmNvbT4KPiA+Cj4g PiBOb3csIGlmIHdyaXRpbmcgcGFnZXMgYW5kIHJlbGVhc2luZyBjb21wcmVzcyBibG9ja3Mgb2Nj dXIKPiA+IHNpbXVsdGFuZW91c2x5LCBhbmQgcmVsZWFzaW5nIGNibG9ja3MgaXMgZXhlY3V0ZWQg bW9yZSB0aGFuIG9uZSB0aW1lCj4gPiB0byBhIGZpbGUsIHRoZW4gdG90YWwgYmxvY2sgY291bnQg b2YgZmlsZXN5c3RlbSBhbmQgYmxvY2sgY291bnQgb2YgdGhlCj4gPiBmaWxlIGNvdWxkIGJlIGlu Y29ycmVjdCBhbmQgZGFtYWdlZC4KPiA+Cj4gPiBXZSBoYXZlIHRvIGV4ZWN1dGUgcmVsZWFzaW5n IGNvbXByZXNzIGJsb2NrcyBvbmx5IG9uZSB0aW1lIGZvciBhIGZpbGUKPiA+IHdpdGhvdXQgYmVp bmcgaW50ZXJmZXJlZCBieSB3cml0ZXBhZ2VzIHBhdGguCj4gPgo+ID4gU2lnbmVkLW9mZi1ieTog RGFlaG8gSmVvbmcgPGRhZWhvamVvbmdAZ29vZ2xlLmNvbT4KPiA+IC0tLQo+ID4gIGZzL2YyZnMv ZmlsZS5jIHwgMzEgKysrKysrKysrKysrKysrKysrKysrKysrLS0tLS0tLQo+ID4gIDEgZmlsZSBj aGFuZ2VkLCAyNCBpbnNlcnRpb25zKCspLCA3IGRlbGV0aW9ucygtKQo+ID4KPiA+IGRpZmYgLS1n aXQgYS9mcy9mMmZzL2ZpbGUuYyBiL2ZzL2YyZnMvZmlsZS5jCj4gPiBpbmRleCA0YWFiNGI0MmQ4 YmEuLmE5MmJjNTFiOWIyOCAxMDA2NDQKPiA+IC0tLSBhL2ZzL2YyZnMvZmlsZS5jCj4gPiArKysg Yi9mcy9mMmZzL2ZpbGUuYwo+ID4gQEAgLTM0ODgsNiArMzQ4OCw3IEBAIHN0YXRpYyBpbnQgZjJm c19yZWxlYXNlX2NvbXByZXNzX2Jsb2NrcyhzdHJ1Y3QgZmlsZSAqZmlscCwgdW5zaWduZWQgbG9u ZyBhcmcpCj4gPiAgICAgICBwZ29mZl90IHBhZ2VfaWR4ID0gMCwgbGFzdF9pZHg7Cj4gPiAgICAg ICB1bnNpZ25lZCBpbnQgcmVsZWFzZWRfYmxvY2tzID0gMDsKPiA+ICAgICAgIGludCByZXQ7Cj4g PiArICAgICBpbnQgd3JpdGVjb3VudDsKPiA+Cj4gPiAgICAgICBpZiAoIWYyZnNfc2JfaGFzX2Nv bXByZXNzaW9uKEYyRlNfSV9TQihpbm9kZSkpKQo+ID4gICAgICAgICAgICAgICByZXR1cm4gLUVP UE5PVFNVUFA7Cj4KPiBCZWZvcmUgaW5vZGVfbG9jaygpLCB0aGVyZSBpcyBvbmUgY2FzZSB3ZSBt YXkganVtcCB0byBvdXQgbGFiZWwsIGluCj4gdGhpcyBjYXNlLCB3ZSBtYXkgdW5sb2NrIGlub2Rl IGluY29ycmVjdGx5Lgo+Cj4gICAgICAgICBpZiAoIUYyRlNfSShpbm9kZSktPmlfY29tcHJfYmxv Y2tzKQo+ICAgICAgICAgICAgICAgICBnb3RvIG91dDsKPgo+ID4gLQo+ID4gLSAgICAgaW5vZGVf dW5sb2NrKGlub2RlKTsKPiA+ICBvdXQ6Cj4gPiArICAgICBpbm9kZV91bmxvY2soaW5vZGUpOwo+ ID4gKwo+ID4gICAgICAgbW50X2Ryb3Bfd3JpdGVfZmlsZShmaWxwKTsKPgo+IFRoYW5rcywKCgpf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eC1mMmZz LWRldmVsIG1haWxpbmcgbGlzdApMaW51eC1mMmZzLWRldmVsQGxpc3RzLnNvdXJjZWZvcmdlLm5l dApodHRwczovL2xpc3RzLnNvdXJjZWZvcmdlLm5ldC9saXN0cy9saXN0aW5mby9saW51eC1mMmZz LWRldmVsCg==