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charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0a1169a5-ea57-4cfb-9cd3-08d62acdcb9f X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Oct 2018 14:21:09.0930 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-Transport-CrossTenantHeadersStamped: HE1PR0801MB1452 Subject: Re: [dpdk-stable] [PATCH v3 1/3] ring: read tail using atomic load X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Oct 2018 14:21:11 -0000 DQoNCu+7v09uIDA1LzEwLzIwMTgsIDE1OjQ1LCAiQW5hbnlldiwgS29uc3RhbnRpbiIgPGtvbnN0 YW50aW4uYW5hbnlldkBpbnRlbC5jb20+IHdyb3RlOg0KDQogICAgV2UgYWxsIGtub3cgdGhhdCAz MmJpdCBsb2FkL3N0b3JlIG9uIGNwdSB3ZSBzdXBwb3J0IC0gYXJlIGF0b21pYy4NCldlbGwsIG5v dCBuZWNlc3NhcmlseSB0cnVlIGZvciB1bmFsaWduZWQgbG9hZHMgYW5kIHN0b3Jlcy4gQnV0IHRo ZSAicHJvYmxlbSIgaGVyZSBpcyB0aGF0IHdlIGFyZSBub3QgZGlyZWN0bHkgZ2VuZXJhdGluZyAz Mi1iaXQgbG9hZCBhbmQgc3RvcmUgaW5zdHJ1Y3Rpb25zICh0aGF0IHdvdWxkIHJlcXVpcmUgaW5s aW5lIGFzc2VtYmx5KSwgd2UgYXJlIHBlcmZvcm1pbmcgQy1sZXZlbCByZWFkcyBhbmQgd3JpdGVz IGFuZCB0cnVzdCB0aGUgY29tcGlsZXIgdG8gZ2VuZXJhdGUgdGhlIG1hY2hpbmUgaW5zdHJ1Y3Rp b25zLg0KDQogICAgSWYgaXQgd291bGRuJ3QgYmUgdGhlIGNhc2UgLSBEUERLIHdvdWxkIGJlIGJy b2tlbiBpbiBkb3plbiBwbGFjZXMuDQpBbmQgbWF5YmUgaXQgaXMsIGlmIHlvdSBjb21waWxlIGZv ciBhIG5ldyBhcmNoaXRlY3R1cmUgb3Igd2l0aCBhIG5ldyBjb21waWxlciAod2hpY2ggYXJlIGdl dHRpbmcgbW9yZSBhbmQgbW9yZSBhZ2dyZXNzaXZlIHdpdGggcmVnYXJkcyB0byB1dGlsaXNpbmcg ZS5nLiB1bmRlZmluZWQgYmVoYXZpb3IgaW4gb3JkZXIgdG8gb3B0aW1pc2UgdGhlIGdlbmVyYXRl ZCBjb2RlKS4NCg0KICAgIFNvIHdoYXQgdGhlIHBvaW50IHRvIHByZXRlbmQgdGhhdCAiaXQgbWln aHQgYmUgbm90IGF0b21pYyIgaWYgd2UgZG8ga25vdyBmb3Igc3VyZSB0aGF0IGl0IGlzPw0KQW55 IGFyZ3VtZW50IHRoYXQgaW5jbHVkZXMgdGhlIHdvcmRzICJmb3Igc3VyZSIgaXMgc3VyZWx5IHN1 c3BlY3QuDQoNCiAgICBJIGRvIHVuZGVyc3RhbmQgdGhhdCB5b3Ugd2FudCB0byB1c2UgYXRvbWlj X2xvYWQocmVsYXhlZCkgaGVyZSBmb3IgY29uc2lzdGVuY3ksDQogICAgYW5kIHRvIGNvbmZvcm0g d2l0aCBDMTEgbWVtLW1vZGVsIGFuZCBJIGRvbid0IHNlZSBhbnkgaGFybSBpbiB0aGF0Lg0KICAg IEJ1dCBhcmd1bWVudCB0aGF0IHdlIHNob3VsZG4ndCBhc3N1bWUgMzJiaXQgbG9hZC9zdG9yZSBv cHMgYXMgYXRvbWljIHNvdW5kcyBhIGJpdCBmbGFreSB0byBtZS4NCiAgICBLb25zdGFudGluDQpJ IHByZWZlciB0byBkZWNsYXJlIGludGVudCBhbmQgcmVxdWlyZW1lbnRzIHRvIHRoZSBjb21waWxl ciwgbm90IHRvIGRlcGVuZCBvbiBhc3N1bXB0aW9ucyBldmVuIGlmIEkgY2FuIGJlIHJlYXNvbmFi bHkgc3VyZSBteSBhc3N1bXB0aW9ucyBhcmUgY29ycmVjdCByaWdodCBoZXJlIHJpZ2h0IG5vdy4g Q29tcGlsZXJzIHdpbGwgZmluZCBuZXcgd2F5cyB0byBicmVhayBub24tY29tcGxpYW50IGNvZGUg aWYgdGhhdCBtZWFucyBpdCBjYW4gaW1wcm92ZSB0aGUgZXhlY3V0aW9uIHRpbWUgb2YgY29tcGxp YW50IGNvZGUuDQoNClNvbWVvbmUgbWF5IG1vZGlmeSB0aGUgY29kZSBvciBmb2xsb3cgdGhlIG1v ZGVsIGZvciBzb21lIHNpbWlsYXIgdGhpbmcgYnV0IGNoYW5nZSB0aGF0IDMyLWJpdCB2YXJpYWJs ZSB0byBhIDY0LWJpdCB2YXJpYWJsZS4gTm93IGZvciBhIDMyLWJpdCB0YXJnZXQsIHRoZSBwbGFp biBDIHJlYWQgZnJvbSBhIHZvbGF0aWxlIDY0LWJpdCB2YXJpYWJsZSB3aWxsIG5vdCBiZSBhdG9t aWMgYnV0IHRoZXJlIHdpbGwgYmUgbm8gd2FybmluZyBmcm9tIHRoZSBjb21waWxlciwgaXQgd2ls bCBoYXBwaWx5IGdlbmVyYXRlIGEgc2VxdWVuY2Ugb2Ygbm9uLWF0b21pYyBsb2Fkcy4gSWYgeW91 IGluc3RlYWQgdXNlIF9fYXRvbWljX2xvYWRfbigpIHRvIHJlYWQgdGhlIHZhcmlhYmxlLCB5b3Ug d291bGQgZ2V0IGEgY29tcGlsZXIgb3IgbGlua2VyIGVycm9yICh1bmxlc3MgeW91IGxpbmsgd2l0 aCAtbGF0b21pYyB3aGljaCB3aWxsIGFjdHVhbGx5IHByb3ZpZGUgYW4gYXRvbWljIGxvYWQsIGUu Zy4gYnkgdXNpbmcgYSBsb2NrIHRvIHByb3RlY3QgdGhlIGFjY2VzcykuDQoNCg0K