From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [PATCH hmm 00/15] Consolidate the mmu notifier interval_tree and locking Date: Mon, 21 Oct 2019 19:06:00 +0000 Message-ID: <20191021190556.GI6285@mellanox.com> References: <20191015181242.8343-1-jgg@ziepe.ca> <20191021184041.GF3177@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20191021184041.GF3177@redhat.com> Content-Language: en-US Content-ID: <46700DBA60BB8A43AC732C3FBB27EA05@eurprd05.prod.outlook.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Jerome Glisse Cc: Andrea Arcangeli , Ralph Campbell , "linux-rdma@vger.kernel.org" , John Hubbard , "Felix.Kuehling@amd.com" , "dri-devel@lists.freedesktop.org" , "linux-mm@kvack.org" , "amd-gfx@lists.freedesktop.org" , Ben Skeggs List-Id: dri-devel@lists.freedesktop.org T24gTW9uLCBPY3QgMjEsIDIwMTkgYXQgMDI6NDA6NDFQTSAtMDQwMCwgSmVyb21lIEdsaXNzZSB3 cm90ZToKPiBPbiBUdWUsIE9jdCAxNSwgMjAxOSBhdCAwMzoxMjoyN1BNIC0wMzAwLCBKYXNvbiBH dW50aG9ycGUgd3JvdGU6Cj4gPiBGcm9tOiBKYXNvbiBHdW50aG9ycGUgPGpnZ0BtZWxsYW5veC5j b20+Cj4gPiAKPiA+IDggb2YgdGhlIG1tdV9ub3RpZmllciB1c2luZyBkcml2ZXJzIChpOTE1X2dl bSwgcmFkZW9uX21uLCB1bWVtX29kcCwgaGZpMSwKPiA+IHNjaWZfZG1hLCB2aG9zdCwgZ250ZGV2 LCBobW0pIGRyaXZlcnMgYXJlIHVzaW5nIGEgY29tbW9uIHBhdHRlcm4gd2hlcmUKPiA+IHRoZXkg b25seSB1c2UgaW52YWxpZGF0ZV9yYW5nZV9zdGFydC9lbmQgYW5kIGltbWVkaWF0ZWx5IGNoZWNr IHRoZQo+ID4gaW52YWxpZGF0aW5nIHJhbmdlIGFnYWluc3Qgc29tZSBkcml2ZXIgZGF0YSBzdHJ1 Y3R1cmUgdG8gdGVsbCBpZiB0aGUKPiA+IGRyaXZlciBpcyBpbnRlcmVzdGVkLiBIYWxmIG9mIHRo ZW0gdXNlIGFuIGludGVydmFsX3RyZWUsIHRoZSBvdGhlcnMgYXJlCj4gPiBzaW1wbGUgbGluZWFy IHNlYXJjaCBsaXN0cy4KPiA+IAo+ID4gT2YgdGhlIG9uZXMgSSBjaGVja2VkIHRoZXkgbGFyZ2Vs eSBzZWVtIHRvIGhhdmUgdmFyaW91cyBraW5kcyBvZiByYWNlcywKPiA+IGJ1Z3MgYW5kIHBvb3Ig aW1wbGVtZW50YXRpb24uIFRoaXMgaXMgYSByZXN1bHQgb2YgdGhlIGNvbXBsZXhpdHkgaW4gaG93 Cj4gPiB0aGUgbm90aWZpZXIgaW50ZXJhY3RzIHdpdGggZ2V0X3VzZXJfcGFnZXMoKS4gSXQgaXMg ZXh0cmVtZWx5IGRpZmZpY3VsdCB0bwo+ID4gdXNlIGl0IGNvcnJlY3RseS4KPiA+IAo+ID4gQ29u c29saWRhdGUgYWxsIG9mIHRoaXMgY29kZSB0b2dldGhlciBpbnRvIHRoZSBjb3JlIG1tdV9ub3Rp ZmllciBhbmQKPiA+IHByb3ZpZGUgYSBsb2NraW5nIHNjaGVtZSBzaW1pbGFyIHRvIGhtbV9taXJy b3IgdGhhdCBhbGxvd3MgdGhlIHVzZXIgdG8KPiA+IHNhZmVseSB1c2UgZ2V0X3VzZXJfcGFnZXMo KSBhbmQgcmVsaWFibHkga25vdyBpZiB0aGUgcGFnZSBsaXN0IHN0aWxsCj4gPiBtYXRjaGVzIHRo ZSBtbS4KPiA+IAo+ID4gVGhpcyBuZXcgYXJyYW5nbWVudCBwbGF5cyBuaWNlbHkgd2l0aCB0aGUg IWJsb2NrYWJsZSBtb2RlIGZvcgo+ID4gT09NLiBTY2FubmluZyB0aGUgaW50ZXJ2YWwgdHJlZSBp cyBkb25lIHN1Y2ggdGhhdCB0aGUgaW50ZXJzZWN0aW9uIHRlc3QKPiA+IHdpbGwgYWx3YXlzIHN1 Y2NlZWQsIGFuZCBzaW5jZSB0aGVyZSBpcyBubyBpbnZhbGlkYXRlX3JhbmdlX2VuZCBleHBvc2Vk IHRvCj4gPiBkcml2ZXJzIHRoZSBzY2hlbWUgc2FmZWx5IGFsbG93cyBtdWx0aXBsZSBkcml2ZXJz IHRvIGJlIHN1YnNjcmliZWQuCj4gPiAKPiA+IEZvdXIgcGxhY2VzIGFyZSBjb252ZXJ0ZWQgYXMg YW4gZXhhbXBsZSBvZiBob3cgdGhlIG5ldyBBUEkgaXMgdXNlZC4KPiA+IEZvdXIgYXJlIGxlZnQg Zm9yIGZ1dHVyZSBwYXRjaGVzOgo+ID4gIC0gaTkxNV9nZW0gaGFzIGNvbXBsZXggbG9ja2luZyBh cm91bmQgZGVzdHJ1Y3Rpb24gb2YgYSByZWdpc3RyYXRpb24sCj4gPiAgICBuZWVkcyBtb3JlIHN0 dWR5Cj4gPiAgLSBoZmkxICgybmQgdXNlcikgbmVlZHMgYWNjZXNzIHRvIHRoZSByYnRyZWUKPiA+ ICAtIHNjaWZfZG1hIGhhcyBhIGNvbXBsaWNhdGVkIGxvZ2ljIGZsb3cKPiA+ICAtIHZob3N0J3Mg bW11IG5vdGlmaWVycyBhcmUgYWxyZWFkeSBiZWluZyByZXdyaXR0ZW4KPiA+IAo+ID4gVGhpcyBp cyBzdGlsbCBiZWluZyB0ZXN0ZWQsIGJ1dCBJIGZpZ3VyZWQgdG8gc2VuZCBpdCB0byBzdGFydCBn ZXR0aW5nIGhlbHAKPiA+IGZyb20gdGhlIHhlbiwgYW1kIGFuZCBoZmkgZHJpdmVycyB3aGljaCBJ IGNhbm5vdCB0ZXN0IGhlcmUuCj4gCj4gSXQgbWlnaHQgYmUgYSBnb29kIG9wb3J0dW5pdHkgdG8g YWxzbyBzd2l0Y2ggdGhvc2UgdXNlcnMgdG8KPiBobW1fcmFuZ2VfZmF1bHQoKSBpbnN0ZWFkIG9m IEdVUCBhcyBHVVAgaXMgcG9pbnRsZXNzIGZvciB0aG9zZQo+IHVzZXJzLiBJbiBmYWN0IHRoZSBH VVAgaXMgYW4gaW1wZWRpbWVudCB0byBub3JtYWwgbW0gb3BlcmF0aW9ucy4KCkkgdGhpbmsgdmhv c3QgY2FuIHVzZSBobW1fcmFuZ2VfZmF1bHQKCmhmaTEgZG9lcyBhY3R1YWxseSBuZWVkIHRvIGhh dmUgdGhlIHBhZ2UgcGluLCBpdCBkb2Vzbid0IGZlbmNlIERNQQpkdXJpbmcgaW52YWxpZGF0ZS4K Cmk5MTVfZ2VtIGZlZWxzIGFsb3QgbGlrZSBhbWRncHUsIHNvIHByb2JhYmx5IGl0IHdvdWxkIGJl bmVmaXQKCk5vIGlkZWEgYWJvdXQgc2NpZl9kbWEKCj4gSSB3aWxsIHRlc3Qgb24gbm91dmVhdS4K ClRoYW5rcywgaG9wZWZ1bGx5IGl0IHN0aWxsIHdvcmtzLCBJIHRoaW5rIFJhbHBoIHdhcyBhYmxl IHRvIGRvIHNvbWUKYmFzaWMgY2hlY2tzLiBCdXQgaXQgaXMgYSBwcmV0dHkgY29tcGxpY2F0ZWQg c2VyaWVzLCBJIHByb2JhYmx5IG1hZGUKc29tZSBtaXN0YWtlcy4KCkZXSVcsIEkga25vdyB0aGF0 IG5vdXZlYXUgZ2V0cyBhIGxvY2tkZXAgc3BsYXQgbm93IGZyb20gRGFuaWVsClZldHRlcidzIHJl Y2VudCBjaGFuZ2VzLCBpdCB0cmllcyB0byBkbyBHRlBfS0VSRU5FTCBhbGxvY2F0aW9ucyB1bmRl cgphIGxvY2sgYWxzbyBoZWxkIGJ5IHRoZSBpbnZhbGlkYXRlX3JhbmdlX3N0YXJ0IHBhdGguCgpU aGFua3MgZm9yIGxvb2tpbmcgYXQgaXQhCgpSZWdhcmRzLApKYXNvbiAKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApk cmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Au b3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs