From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joonas Lahtinen Subject: Re: [PATCH 1/2] shmem: Support for registration of Driver/file owner specific ops Date: Thu, 24 Mar 2016 14:11:34 +0200 Message-ID: <1458821494.7860.9.camel@linux.intel.com> References: <1458713384-25688-1-git-send-email-akash.goel@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTP id 270ED6E990 for ; Thu, 24 Mar 2016 12:11:04 +0000 (UTC) In-Reply-To: <1458713384-25688-1-git-send-email-akash.goel@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: akash.goel@intel.com, intel-gfx@lists.freedesktop.org Cc: linux-mm@kvack.org, Sourab Gupta , Hugh Dickins List-Id: intel-gfx@lists.freedesktop.org T24ga2UsIDIwMTYtMDMtMjMgYXQgMTE6MzkgKzA1MzAsIGFrYXNoLmdvZWxAaW50ZWwuY29tIHdy b3RlOgo+IEZyb206IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVrPgo+IAo+ IFRoaXMgcHJvdmlkZXMgc3VwcG9ydCBmb3IgdGhlIERyaXZlcnMgb3Igc2htZW0gZmlsZSBvd25l cnMgdG8gcmVnaXN0ZXIKPiBhIHNldCBvZiBjYWxsYmFja3MsIHdoaWNoIGNhbiBiZSBpbnZva2Vk IGZyb20gdGhlIGFkZHJlc3Mgc3BhY2Ugb3BlcmF0aW9ucwo+IG1ldGhvZHMgaW1wbGVtZW50ZWQg Ynkgc2htZW0uCj4gVGhpcyBhbGxvdyB0aGUgZmlsZSBvd25lcnMgdG8gaG9vayBpbnRvIHRoZSBz aG1lbSBhZGRyZXNzIHNwYWNlIG9wZXJhdGlvbnMKPiB0byBkbyBzb21lIGV4dHJhL2N1c3RvbSBv cGVyYXRpb25zIGluIGFkZGl0aW9uIHRvIHRoZSBkZWZhdWx0IG9uZXMuCj4gCj4gVGhlIHByaXZh dGVfZGF0YSBmaWVsZCBvZiBhZGRyZXNzX3NwYWNlIHN0cnVjdCBpcyB1c2VkIHRvIHN0b3JlIHRo ZSBwb2ludGVyCj4gdG8gZHJpdmVyIHNwZWNpZmljIG9wcy4KPiBDdXJyZW50bHkgb25seSBvbmUg b3BzIGZpZWxkIGlzIGRlZmluZWQsIHdoaWNoIGlzIG1pZ3JhdGVwYWdlLCBidXQgY2FuIGJlCj4g ZXh0ZW5kZWQgb24gbmVlZCBiYXNpcy4KPiAKPiBUaGUgbmVlZCBmb3IgZHJpdmVyIHNwZWNpZmlj IG9wZXJhdGlvbnMgYXJpc2VzIHNpbmNlIHNvbWUgb2YgdGhlIG9wZXJhdGlvbnMKPiAobGlrZSBt aWdyYXRlcGFnZSkgbWF5IG5vdCBiZSBoYW5kbGVkIGNvbXBsZXRlbHkgd2l0aGluIHNobWVtLCBz byBhcyB0byBiZQo+IGVmZmVjdGl2ZSwgYW5kIHdvdWxkIG5lZWQgc29tZSBkcml2ZXIgc3BlY2lm aWMgaGFuZGxpbmcgYWxzby4KPiAKPiBTcGVjaWZpY2FsbHksIGk5MTUua28gd291bGQgbGlrZSB0 byBwYXJ0aWNpcGF0ZSBpbiBtaWdyYXRlcGFnZSgpLgo+IGk5MTUua28gdXNlcyBzaG1lbWZzIHRv IHByb3ZpZGUgc3dhcHBhYmxlIGJhY2tpbmcgc3RvcmFnZSBmb3IgaXRzIHVzZXIKPiBvYmplY3Rz LCBidXQgd2hlbiB0aG9zZSBvYmplY3RzIGFyZSBpbiB1c2UgYnkgdGhlIEdQVSBpdCBtdXN0IHBp biB0aGUgZW50aXJlCj4gb2JqZWN0IHVudGlsIHRoZSBHUFUgaXMgaWRsZS4gQXMgYSByZXN1bHQs IGxhcmdlIGNodW5rcyBvZiBtZW1vcnkgY2FuIGJlCj4gYXJiaXRyYXJpbHkgd2l0aGRyYXduIGZy b20gcGFnZSBtaWdyYXRpb24sIHJlc3VsdGluZyBpbiBwcmVtYXR1cmUKPiBvdXQtb2YtbWVtb3J5 IGR1ZSB0byBmcmFnbWVudGF0aW9uLiBIb3dldmVyLCBpZiBpOTE1LmtvIGNhbiByZWNlaXZlIHRo ZQo+IG1pZ3JhdGVwYWdlKCkgcmVxdWVzdCwgaXQgY2FuIHRoZW4gZmx1c2ggdGhlIG9iamVjdCBm cm9tIHRoZSBHUFUsIHJlbW92ZQo+IGl0cyBwaW4gYW5kIHRodXMgZW5hYmxlIHRoZSBtaWdyYXRp b24uCj4gCj4gU2luY2UgR2Z4IGFsbG9jYXRpb25zIGFyZSBvbmUgb2YgdGhlIG1ham9yIGNvbnN1 bWVyIG9mIHN5c3RlbSBtZW1vcnksIGl0cwo+IGltcGVyYXRpdmUgdG8gaGF2ZSBzdWNoIGEgbWVj aGFuaXNtIHRvIGVmZmVjdGl2ZWx5IGRlYWwgd2l0aCBmcmFnbWVudGF0aW9uLgo+IEFuZCB0aGVy ZWZvcmUgdGhlIG5lZWQgZm9yIHN1Y2ggYSBwcm92aXNpb24gZm9yIGluaXRpYXRpbmcgZHJpdmVy IHNwZWNpZmljCj4gYWN0aW9ucyBkdXJpbmcgYWRkcmVzcyBzcGFjZSBvcGVyYXRpb25zLgo+IAo+ IENjOiBIdWdoIERpY2tpbnMgPGh1Z2hkQGdvb2dsZS5jb20+Cj4gQ2M6IGxpbnV4LW1tQGt2YWNr Lm9yZwo+IFNpZ25lZC1vZmYtYnk6IFNvdXJhYiBHdXB0YSA8c291cmFiLmd1cHRhQGludGVsLmNv bT4KPiBTaWduZWQtb2ZmLWJ5OiBBa2FzaCBHb2VsIDxha2FzaC5nb2VsQGludGVsLmNvbT4KPiAt LS0KPiDCoGluY2x1ZGUvbGludXgvc2htZW1fZnMuaCB8IDE3ICsrKysrKysrKysrKysrKysrCj4g wqBtbS9zaG1lbS5jwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgfCAxNyArKysrKysrKysr KysrKysrLQo+IMKgMiBmaWxlcyBjaGFuZ2VkLCAzMyBpbnNlcnRpb25zKCspLCAxIGRlbGV0aW9u KC0pCj4gCj4gZGlmZiAtLWdpdCBhL2luY2x1ZGUvbGludXgvc2htZW1fZnMuaCBiL2luY2x1ZGUv bGludXgvc2htZW1fZnMuaAo+IGluZGV4IDRkNDc4MGMuLjZjZmE3NmEgMTAwNjQ0Cj4gLS0tIGEv aW5jbHVkZS9saW51eC9zaG1lbV9mcy5oCj4gKysrIGIvaW5jbHVkZS9saW51eC9zaG1lbV9mcy5o Cj4gQEAgLTM0LDExICszNCwyOCBAQCBzdHJ1Y3Qgc2htZW1fc2JfaW5mbyB7Cj4gwqAJc3RydWN0 IG1lbXBvbGljeSAqbXBvbDvCoMKgwqDCoMKgLyogZGVmYXVsdCBtZW1vcnkgcG9saWN5IGZvciBt YXBwaW5ncyAqLwo+IMKgfTsKPiDCoAo+ICtzdHJ1Y3Qgc2htZW1fZGV2X2luZm8gewo+ICsJdm9p ZCAqZGV2X3ByaXZhdGVfZGF0YTsKPiArCWludCAoKmRldl9taWdyYXRlcGFnZSkoc3RydWN0IGFk ZHJlc3Nfc3BhY2UgKm1hcHBpbmcsCj4gKwkJCcKgwqDCoMKgwqDCoMKgc3RydWN0IHBhZ2UgKm5l d3BhZ2UsIHN0cnVjdCBwYWdlICpwYWdlLAo+ICsJCQnCoMKgwqDCoMKgwqDCoGVudW0gbWlncmF0 ZV9tb2RlIG1vZGUsIHZvaWQgKmRldl9wcml2X2RhdGEpOwoKT25lIG1pZ2h0IHdhbnQgdG8gaGF2 ZSBhIHNlcGFyYXRlIHNobWVtX2Rldl9vcGVyYXRpb25zIHN0cnVjdCBvcgpzaW1pbGFyLgoKPiAr fTsKPiArCj4gwqBzdGF0aWMgaW5saW5lIHN0cnVjdCBzaG1lbV9pbm9kZV9pbmZvICpTSE1FTV9J KHN0cnVjdCBpbm9kZSAqaW5vZGUpCj4gwqB7Cj4gwqAJcmV0dXJuIGNvbnRhaW5lcl9vZihpbm9k ZSwgc3RydWN0IHNobWVtX2lub2RlX2luZm8sIHZmc19pbm9kZSk7Cj4gwqB9Cj4gwqAKPiArc3Rh dGljIGlubGluZSBpbnQgc2htZW1fc2V0X2RldmljZV9vcHMoc3RydWN0IGFkZHJlc3Nfc3BhY2Ug Km1hcHBpbmcsCj4gKwkJCQlzdHJ1Y3Qgc2htZW1fZGV2X2luZm8gKmluZm8pCj4gK3sKPiArCWlm IChtYXBwaW5nLT5wcml2YXRlX2RhdGEgIT0gTlVMTCkKPiArCQlyZXR1cm4gLUVFWElTVDsKPiAr CgpJIGRpZCBhIHF1aWNrIHJhbmRvbSBwZWVrIGFuZCBtb3N0IHNldCBmdW5jdGlvbnMgYXJlIGp1 c3Qgdm9pZCBhbmQKb3ZlcnJpZGUgZXhpc3RpbmcgZGF0YS4gSSdkIHN1Z2dlc3QgdGhlIHNhbWUu Cgo+ICsJbWFwcGluZy0+cHJpdmF0ZV9kYXRhID0gaW5mbzsKCkFsc28sIGRvZXNuJ3QgdGhpcyBr aW5kYSBzdGVhbCB0aGUgbWFwcGluZy0+cHJpdmF0ZV9kYXRhLCBtaWdodCB0aGF0IGJlCnVuZXhw ZWN0ZWQgZm9yIHRoZSB1c2VyPyBJIG5vdGljZSBjdXJyZW50bHkgaXQncyBub3QgYmVpbmcgdG91 Y2hlZCBhdAphbGwuCgo+ICsJcmV0dXJuIDA7Cj4gK30KPiArCj4gwqAvKgo+IMKgICogRnVuY3Rp b25zIGluIG1tL3NobWVtLmMgY2FsbGVkIGRpcmVjdGx5IGZyb20gZWxzZXdoZXJlOgo+IMKgICov Cj4gZGlmZiAtLWdpdCBhL21tL3NobWVtLmMgYi9tbS9zaG1lbS5jCj4gaW5kZXggNDQwZTJhNy4u Zjg2MjVjNCAxMDA2NDQKPiAtLS0gYS9tbS9zaG1lbS5jCj4gKysrIGIvbW0vc2htZW0uYwo+IEBA IC05NTIsNiArOTUyLDIxIEBAIHJlZGlydHk6Cj4gwqAJcmV0dXJuIDA7Cj4gwqB9Cj4gwqAKPiAr I2lmZGVmIENPTkZJR19NSUdSQVRJT04KPiArc3RhdGljIGludCBzaG1lbV9taWdyYXRlcGFnZShz dHJ1Y3QgYWRkcmVzc19zcGFjZSAqbWFwcGluZywKPiArCQkJwqDCoMKgwqDCoHN0cnVjdCBwYWdl ICpuZXdwYWdlLCBzdHJ1Y3QgcGFnZSAqcGFnZSwKPiArCQkJwqDCoMKgwqDCoGVudW0gbWlncmF0 ZV9tb2RlIG1vZGUpCj4gK3sKPiArCXN0cnVjdCBzaG1lbV9kZXZfaW5mbyAqZGV2X2luZm8gPSBt YXBwaW5nLT5wcml2YXRlX2RhdGE7Cj4gKwo+ICsJaWYgKGRldl9pbmZvICYmIGRldl9pbmZvLT5k ZXZfbWlncmF0ZXBhZ2UpCj4gKwkJcmV0dXJuIGRldl9pbmZvLT5kZXZfbWlncmF0ZXBhZ2UobWFw cGluZywgbmV3cGFnZSwgcGFnZSwKPiArCQkJCW1vZGUsIGRldl9pbmZvLT5kZXZfcHJpdmF0ZV9k YXRhKTsKPiArCj4gKwlyZXR1cm4gbWlncmF0ZV9wYWdlKG1hcHBpbmcsIG5ld3BhZ2UsIHBhZ2Us IG1vZGUpOwo+ICt9Cj4gKyNlbmRpZgo+ICsKPiDCoCNpZmRlZiBDT05GSUdfTlVNQQo+IMKgI2lm ZGVmIENPTkZJR19UTVBGUwo+IMKgc3RhdGljIHZvaWQgc2htZW1fc2hvd19tcG9sKHN0cnVjdCBz ZXFfZmlsZSAqc2VxLCBzdHJ1Y3QgbWVtcG9saWN5ICptcG9sKQo+IEBAIC0zMTY4LDcgKzMxODMs NyBAQCBzdGF0aWMgY29uc3Qgc3RydWN0IGFkZHJlc3Nfc3BhY2Vfb3BlcmF0aW9ucyBzaG1lbV9h b3BzID0gewo+IMKgCS53cml0ZV9lbmQJPSBzaG1lbV93cml0ZV9lbmQsCj4gwqAjZW5kaWYKPiDC oCNpZmRlZiBDT05GSUdfTUlHUkFUSU9OCj4gLQkubWlncmF0ZXBhZ2UJPSBtaWdyYXRlX3BhZ2Us Cj4gKwkubWlncmF0ZXBhZ2UJPSBzaG1lbV9taWdyYXRlcGFnZSwKPiDCoCNlbmRpZgo+IMKgCS5l cnJvcl9yZW1vdmVfcGFnZSA9IGdlbmVyaWNfZXJyb3JfcmVtb3ZlX3BhZ2UsCj4gwqB9OwotLSAK Sm9vbmFzIExhaHRpbmVuCk9wZW4gU291cmNlIFRlY2hub2xvZ3kgQ2VudGVyCkludGVsIENvcnBv cmF0aW9uCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCklu dGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRw czovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=