From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH v4 1/2] shmem: Support for registration of driver/file owner specific ops Date: Wed, 20 Apr 2016 14:38:11 +0200 Message-ID: <20160420123811.GT2510@phenom.ffwll.local> References: <1459775891-32442-1-git-send-email-chris@chris-wilson.co.uk> <20160415160924.GQ19990@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wm0-x231.google.com (mail-wm0-x231.google.com [IPv6:2a00:1450:400c:c09::231]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6126389EA6 for ; Wed, 20 Apr 2016 12:38:16 +0000 (UTC) Received: by mail-wm0-x231.google.com with SMTP id u206so79183301wme.1 for ; Wed, 20 Apr 2016 05:38:16 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20160415160924.GQ19990@nuc-i3427.alporthouse.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org, linux-mm@kvack.org, Akash Goel , linux-kernel@vger.linux.org, Hugh Dickins , Sourab Gupta List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCBBcHIgMTUsIDIwMTYgYXQgMDU6MDk6MjRQTSArMDEwMCwgQ2hyaXMgV2lsc29uIHdy b3RlOgo+IE9uIE1vbiwgQXByIDA0LCAyMDE2IGF0IDAyOjE4OjEwUE0gKzAxMDAsIENocmlzIFdp bHNvbiB3cm90ZToKPiA+IEZyb206IEFrYXNoIEdvZWwgPGFrYXNoLmdvZWxAaW50ZWwuY29tPgo+ ID4gCj4gPiBUaGlzIHByb3ZpZGVzIHN1cHBvcnQgZm9yIHRoZSBkcml2ZXJzIG9yIHNobWVtIGZp bGUgb3duZXJzIHRvIHJlZ2lzdGVyCj4gPiBhIHNldCBvZiBjYWxsYmFja3MsIHdoaWNoIGNhbiBi ZSBpbnZva2VkIGZyb20gdGhlIGFkZHJlc3Mgc3BhY2UKPiA+IG9wZXJhdGlvbnMgbWV0aG9kcyBp bXBsZW1lbnRlZCBieSBzaG1lbS4gIFRoaXMgYWxsb3cgdGhlIGZpbGUgb3duZXJzIHRvCj4gPiBo b29rIGludG8gdGhlIHNobWVtIGFkZHJlc3Mgc3BhY2Ugb3BlcmF0aW9ucyB0byBkbyBzb21lIGV4 dHJhL2N1c3RvbQo+ID4gb3BlcmF0aW9ucyBpbiBhZGRpdGlvbiB0byB0aGUgZGVmYXVsdCBvbmVz Lgo+ID4gCj4gPiBUaGUgcHJpdmF0ZV9kYXRhIGZpZWxkIG9mIGFkZHJlc3Nfc3BhY2Ugc3RydWN0 IGlzIHVzZWQgdG8gc3RvcmUgdGhlCj4gPiBwb2ludGVyIHRvIGRyaXZlciBzcGVjaWZpYyBvcHMu ICBDdXJyZW50bHkgb25seSBvbmUgb3BzIGZpZWxkIGlzIGRlZmluZWQsCj4gPiB3aGljaCBpcyBt aWdyYXRlcGFnZSwgYnV0IGNhbiBiZSBleHRlbmRlZCBvbiBhbiBhcy1uZWVkZWQgYmFzaXMuCj4g PiAKPiA+IFRoZSBuZWVkIGZvciBkcml2ZXIgc3BlY2lmaWMgb3BlcmF0aW9ucyBhcmlzZXMgc2lu Y2Ugc29tZSBvZiB0aGUKPiA+IG9wZXJhdGlvbnMgKGxpa2UgbWlncmF0ZXBhZ2UpIG1heSBub3Qg YmUgaGFuZGxlZCBjb21wbGV0ZWx5IHdpdGhpbiBzaG1lbSwKPiA+IHNvIGFzIHRvIGJlIGVmZmVj dGl2ZSwgYW5kIHdvdWxkIG5lZWQgc29tZSBkcml2ZXIgc3BlY2lmaWMgaGFuZGxpbmcgYWxzby4K PiA+IFNwZWNpZmljYWxseSwgaTkxNS5rbyB3b3VsZCBsaWtlIHRvIHBhcnRpY2lwYXRlIGluIG1p Z3JhdGVwYWdlKCkuCj4gPiBpOTE1LmtvIHVzZXMgc2htZW1mcyB0byBwcm92aWRlIHN3YXBwYWJs ZSBiYWNraW5nIHN0b3JhZ2UgZm9yIGl0cyB1c2VyCj4gPiBvYmplY3RzLCBidXQgd2hlbiB0aG9z ZSBvYmplY3RzIGFyZSBpbiB1c2UgYnkgdGhlIEdQVSBpdCBtdXN0IHBpbiB0aGUKPiA+IGVudGly ZSBvYmplY3QgdW50aWwgdGhlIEdQVSBpcyBpZGxlLiAgQXMgYSByZXN1bHQsIGxhcmdlIGNodW5r cyBvZiBtZW1vcnkKPiA+IGNhbiBiZSBhcmJpdHJhcmlseSB3aXRoZHJhd24gZnJvbSBwYWdlIG1p Z3JhdGlvbiwgcmVzdWx0aW5nIGluIHByZW1hdHVyZQo+ID4gb3V0LW9mLW1lbW9yeSBkdWUgdG8g ZnJhZ21lbnRhdGlvbi4gIEhvd2V2ZXIsIGlmIGk5MTUua28gY2FuIHJlY2VpdmUgdGhlCj4gPiBt aWdyYXRlcGFnZSgpIHJlcXVlc3QsIGl0IGNhbiB0aGVuIGZsdXNoIHRoZSBvYmplY3QgZnJvbSB0 aGUgR1BVLCByZW1vdmUKPiA+IGl0cyBwaW4gYW5kIHRodXMgZW5hYmxlIHRoZSBtaWdyYXRpb24u Cj4gPiAKPiA+IFNpbmNlIGdmeCBhbGxvY2F0aW9ucyBhcmUgb25lIG9mIHRoZSBtYWpvciBjb25z dW1lciBvZiBzeXN0ZW0gbWVtb3J5LCBpdHMKPiA+IGltcGVyYXRpdmUgdG8gaGF2ZSBzdWNoIGEg bWVjaGFuaXNtIHRvIGVmZmVjdGl2ZWx5IGRlYWwgd2l0aAo+ID4gZnJhZ21lbnRhdGlvbi4gIEFu ZCB0aGVyZWZvcmUgdGhlIG5lZWQgZm9yIHN1Y2ggYSBwcm92aXNpb24gZm9yIGluaXRpYXRpbmcK PiA+IGRyaXZlciBzcGVjaWZpYyBhY3Rpb25zIGR1cmluZyBhZGRyZXNzIHNwYWNlIG9wZXJhdGlv bnMuCj4gPiAKPiA+IENjOiBIdWdoIERpY2tpbnMgPGh1Z2hkQGdvb2dsZS5jb20+Cj4gPiBDYzog bGludXgtbW1Aa3ZhY2sub3JnCj4gPiBDYzogbGludXgta2VybmVsQHZnZXIubGludXgub3JnCj4g PiBTaWduZWQtb2ZmLWJ5OiBTb3VyYWIgR3VwdGEgPHNvdXJhYi5ndXB0YUBpbnRlbC5jb20+Cj4g PiBTaWduZWQtb2ZmLWJ5OiBBa2FzaCBHb2VsIDxha2FzaC5nb2VsQGludGVsLmNvbT4KPiA+IFJl dmlld2VkLWJ5OiBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4KPiAKPiBQ aW5nPwoKVGhpcyBhZGRyZXNzZXMgYSBsb25nLXN0YW5kaW5nIGlzc3VlIHdlIGhhdmUgaW4gaTkx NSBnZW0gb2YgZXNzZW50aWFsbHkKcGlubmluZyB3YXkgdG8gbXVjaCBtZW1vcnkgYXMgdW5tb3Zl YWJsZS4gV291bGQgYmUgbmljZSB0byBnZXQgdGhpcwptZXJnZWQuIEl0IGFsc28gZG9lcyBzZWVt IHRvIGZpeCBzb21lIHJlYWwtd29ybGQgaXNzdWVzIHdlJ3JlIHNlZWluZwoobGlua2VkIGZyb20g dGhlIGk5MTUgcGF0Y2gpLgoKQ2FuIEkgaGF2ZSBhY2tzL3Jldmlld3MgZnJvbSAtbW0gZm9sa3Mg dG8gZ2V0IHRoaXMgaW4gdGhyb3VnaCBkcm0gdHJlZXMKcGxlYXNlPwoKVGhhbmtzLCBEYW5pZWwK Cj4gCj4gPiAtLS0KPiA+ICBpbmNsdWRlL2xpbnV4L3NobWVtX2ZzLmggfCAxNyArKysrKysrKysr KysrKysrKwo+ID4gIG1tL3NobWVtLmMgICAgICAgICAgICAgICB8IDE3ICsrKysrKysrKysrKysr KystCj4gPiAgMiBmaWxlcyBjaGFuZ2VkLCAzMyBpbnNlcnRpb25zKCspLCAxIGRlbGV0aW9uKC0p Cj4gPiAKPiA+IGRpZmYgLS1naXQgYS9pbmNsdWRlL2xpbnV4L3NobWVtX2ZzLmggYi9pbmNsdWRl L2xpbnV4L3NobWVtX2ZzLmgKPiA+IGluZGV4IDRkNDc4MGMwMGQzNC4uZDc5MjViNjZjMjQwIDEw MDY0NAo+ID4gLS0tIGEvaW5jbHVkZS9saW51eC9zaG1lbV9mcy5oCj4gPiArKysgYi9pbmNsdWRl L2xpbnV4L3NobWVtX2ZzLmgKPiA+IEBAIC0zNCwxMSArMzQsMjggQEAgc3RydWN0IHNobWVtX3Ni X2luZm8gewo+ID4gIAlzdHJ1Y3QgbWVtcG9saWN5ICptcG9sOyAgICAgLyogZGVmYXVsdCBtZW1v cnkgcG9saWN5IGZvciBtYXBwaW5ncyAqLwo+ID4gIH07Cj4gPiAgCj4gPiArc3RydWN0IHNobWVt X2Rldl9pbmZvIHsKPiA+ICsJdm9pZCAqZGV2X3ByaXZhdGVfZGF0YTsKPiA+ICsJaW50ICgqZGV2 X21pZ3JhdGVwYWdlKShzdHJ1Y3QgYWRkcmVzc19zcGFjZSAqbWFwcGluZywKPiA+ICsJCQkgICAg ICAgc3RydWN0IHBhZ2UgKm5ld3BhZ2UsIHN0cnVjdCBwYWdlICpwYWdlLAo+ID4gKwkJCSAgICAg ICBlbnVtIG1pZ3JhdGVfbW9kZSBtb2RlLCB2b2lkICpkZXZfcHJpdl9kYXRhKTsKPiA+ICt9Owo+ ID4gKwo+ID4gIHN0YXRpYyBpbmxpbmUgc3RydWN0IHNobWVtX2lub2RlX2luZm8gKlNITUVNX0ko c3RydWN0IGlub2RlICppbm9kZSkKPiA+ICB7Cj4gPiAgCXJldHVybiBjb250YWluZXJfb2YoaW5v ZGUsIHN0cnVjdCBzaG1lbV9pbm9kZV9pbmZvLCB2ZnNfaW5vZGUpOwo+ID4gIH0KPiA+ICAKPiA+ ICtzdGF0aWMgaW5saW5lIGludCBzaG1lbV9zZXRfZGV2aWNlX29wcyhzdHJ1Y3QgYWRkcmVzc19z cGFjZSAqbWFwcGluZywKPiA+ICsJCQkJICAgICAgIHN0cnVjdCBzaG1lbV9kZXZfaW5mbyAqaW5m bykKPiA+ICt7Cj4gPiArCWlmIChtYXBwaW5nLT5wcml2YXRlX2RhdGEgIT0gTlVMTCkKPiA+ICsJ CXJldHVybiAtRUVYSVNUOwo+ID4gKwo+ID4gKwltYXBwaW5nLT5wcml2YXRlX2RhdGEgPSBpbmZv Owo+ID4gKwlyZXR1cm4gMDsKPiA+ICt9Cj4gPiArCj4gPiAgLyoKPiA+ICAgKiBGdW5jdGlvbnMg aW4gbW0vc2htZW0uYyBjYWxsZWQgZGlyZWN0bHkgZnJvbSBlbHNld2hlcmU6Cj4gPiAgICovCj4g PiBkaWZmIC0tZ2l0IGEvbW0vc2htZW0uYyBiL21tL3NobWVtLmMKPiA+IGluZGV4IDk0MjhjNTFh YjJkNi4uNmVkOTUzMTkzODgzIDEwMDY0NAo+ID4gLS0tIGEvbW0vc2htZW0uYwo+ID4gKysrIGIv bW0vc2htZW0uYwo+ID4gQEAgLTk0Nyw2ICs5NDcsMjEgQEAgcmVkaXJ0eToKPiA+ICAJcmV0dXJu IDA7Cj4gPiAgfQo+ID4gIAo+ID4gKyNpZmRlZiBDT05GSUdfTUlHUkFUSU9OCj4gPiArc3RhdGlj IGludCBzaG1lbV9taWdyYXRlcGFnZShzdHJ1Y3QgYWRkcmVzc19zcGFjZSAqbWFwcGluZywKPiA+ ICsJCQkgICAgIHN0cnVjdCBwYWdlICpuZXdwYWdlLCBzdHJ1Y3QgcGFnZSAqcGFnZSwKPiA+ICsJ CQkgICAgIGVudW0gbWlncmF0ZV9tb2RlIG1vZGUpCj4gPiArewo+ID4gKwlzdHJ1Y3Qgc2htZW1f ZGV2X2luZm8gKmRldl9pbmZvID0gbWFwcGluZy0+cHJpdmF0ZV9kYXRhOwo+ID4gKwo+ID4gKwlp ZiAoZGV2X2luZm8gJiYgZGV2X2luZm8tPmRldl9taWdyYXRlcGFnZSkKPiA+ICsJCXJldHVybiBk ZXZfaW5mby0+ZGV2X21pZ3JhdGVwYWdlKG1hcHBpbmcsIG5ld3BhZ2UsIHBhZ2UsCj4gPiArCQkJ CW1vZGUsIGRldl9pbmZvLT5kZXZfcHJpdmF0ZV9kYXRhKTsKPiA+ICsKPiA+ICsJcmV0dXJuIG1p Z3JhdGVfcGFnZShtYXBwaW5nLCBuZXdwYWdlLCBwYWdlLCBtb2RlKTsKPiA+ICt9Cj4gPiArI2Vu ZGlmCj4gPiArCj4gPiAgI2lmZGVmIENPTkZJR19OVU1BCj4gPiAgI2lmZGVmIENPTkZJR19UTVBG Uwo+ID4gIHN0YXRpYyB2b2lkIHNobWVtX3Nob3dfbXBvbChzdHJ1Y3Qgc2VxX2ZpbGUgKnNlcSwg c3RydWN0IG1lbXBvbGljeSAqbXBvbCkKPiA+IEBAIC0zMTYxLDcgKzMxNzYsNyBAQCBzdGF0aWMg Y29uc3Qgc3RydWN0IGFkZHJlc3Nfc3BhY2Vfb3BlcmF0aW9ucyBzaG1lbV9hb3BzID0gewo+ID4g IAkud3JpdGVfZW5kCT0gc2htZW1fd3JpdGVfZW5kLAo+ID4gICNlbmRpZgo+ID4gICNpZmRlZiBD T05GSUdfTUlHUkFUSU9OCj4gPiAtCS5taWdyYXRlcGFnZQk9IG1pZ3JhdGVfcGFnZSwKPiA+ICsJ Lm1pZ3JhdGVwYWdlCT0gc2htZW1fbWlncmF0ZXBhZ2UsCj4gPiAgI2VuZGlmCj4gPiAgCS5lcnJv cl9yZW1vdmVfcGFnZSA9IGdlbmVyaWNfZXJyb3JfcmVtb3ZlX3BhZ2UsCj4gPiAgfTsKPiAKPiAt LSAKPiBDaHJpcyBXaWxzb24sIEludGVsIE9wZW4gU291cmNlIFRlY2hub2xvZ3kgQ2VudHJlCj4g Cj4gLS0KPiBUbyB1bnN1YnNjcmliZSwgc2VuZCBhIG1lc3NhZ2Ugd2l0aCAndW5zdWJzY3JpYmUg bGludXgtbW0nIGluCj4gdGhlIGJvZHkgdG8gbWFqb3Jkb21vQGt2YWNrLm9yZy4gIEZvciBtb3Jl IGluZm8gb24gTGludXggTU0sCj4gc2VlOiBodHRwOi8vd3d3LmxpbnV4LW1tLm9yZy8gLgo+IERv bid0IGVtYWlsOiA8YSBocmVmPW1haWx0bzoiZG9udEBrdmFjay5vcmciPiBlbWFpbEBrdmFjay5v cmcgPC9hPgoKLS0gCkRhbmllbCBWZXR0ZXIKU29mdHdhcmUgRW5naW5lZXIsIEludGVsIENvcnBv cmF0aW9uCmh0dHA6Ly9ibG9nLmZmd2xsLmNoCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3Rz LmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2ludGVsLWdmeAo=