From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Biggers Date: Wed, 09 Jan 2019 08:21:04 +0000 Subject: Re: [PATCH 1/5 v2] PM / hibernate: Create snapshot keys handler Message-Id: <20190109082103.GA8586@sol.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1250" Content-Transfer-Encoding: base64 List-Id: References: <20190103143227.9138-1-jlee@suse.com> <309406107.k3W2fMQUza@tauon.chronox.de> <1547017108.2789.24.camel@HansenPartnership.com> <1894062.aDvIuj92vB@tauon.chronox.de> In-Reply-To: <1894062.aDvIuj92vB@tauon.chronox.de> To: Stephan Mueller Cc: James Bottomley , Andy Lutomirski , Herbert Xu , "Lee, Chun-Yi" , "Rafael J . Wysocki" , Pavel Machek , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, keyrings@vger.kernel.org, "Rafael J. Wysocki" , Chen Yu , Oliver Neukum , Ryan Chen , David Howells , Giovanni Gherdovich , Randy Dunlap , Jann Horn , Andy Lutomirski T24gV2VkLCBKYW4gMDksIDIwMTkgYXQgMDg6MDU6MjFBTSArMDEwMCwgU3RlcGhhbiBNdWVsbGVy IHdyb3RlOgo+IEFtIE1pdHR3b2NoLCA5LiBKYW51YXIgMjAxOSwgMDc6NTg6MjggQ0VUIHNjaHJp ZWIgSmFtZXMgQm90dG9tbGV5Ogo+IAo+IEhpIEphbWVzLAo+IAo+ID4gT24gV2VkLCAyMDE5LTAx LTA5IGF0IDA3OjQ1ICswMTAwLCBTdGVwaGFuIE11ZWxsZXIgd3JvdGU6Cj4gPiA+IEFtIE1pdHR3 b2NoLCA5LiBKYW51YXIgMjAxOSwgMDE6NDQ6MzEgQ0VUIHNjaHJpZWIgSmFtZXMgQm90dG9tbGV5 Ogo+ID4gPiAKPiA+ID4gSGkgSmFtZXMsCj4gPiA+IAo+ID4gPiA+IEFjdHVhbGx5LCBpdCB3b3Vs ZCBiZSBlbm9ybW91c2x5IGhlbHBmdWwgaWYgd2UgY291bGQgcmV1c2UgdGhlc2UKPiA+ID4gPiBw aWVjZXMgZm9yIHRoZSBUUE0gYXMgd2VsbC4KPiA+ID4gCj4gPiA+IENvdWxkIHlvdSBwbGVhc2Ug aGVscCBtZSB1bmRlcnN0YW5kIHdoZXRoZXIgdGhlIEtERnMgaW4gVFBNIGFyZQo+ID4gPiBkaXJl Y3RseSB1c2FibGUgYXMgYSBzdGFuZGFsb25lIGNpcGhlciBwcmltaXRpdmUgb3IgZG9lcyBpdCBn bwo+ID4gPiB0b2dldGhlciB3aXRoIGFkZGl0aW9uYWwgIGtleSBnZW5lcmF0aW9uIG9wZXJhdGlv bnM/Cj4gPiAKPiA+IFRoZXkncmUgdXNlZCBhcyBnZW5lcmF0b3JzIC4uLiB3aGljaCBtZWFucyB0 aGV5IGRldGVybWluaXN0aWNhbGx5Cj4gPiBwcm9kdWNlIGtleXMgZnJvbSB3aGF0IHRoZSBUUE0g Y2FsbHMgc2VlZHMgc28gd2UgY2FuIGdldCBjcnlwdG8gYWdpbGl0eQo+ID4gb2YgVFBNIDIuMCAu Li4gd2VsbCBLREZhIGRvZXMuICBLREZlIGlzIHNpbXBseSB3aGF0IE5JU1QgcmVjb21tZW5kcyB5 b3UKPiA+IGRvIHdoZW4gdXNpbmcgRUMgZm9yIGEgc2hhcmVkIGtleSBhZ3JlZW1lbnQgLi4uIGFu ZCByZWFsbHkgd2Ugc2hvdWxkbid0Cj4gPiBiZSB1c2luZyBFQ0RIIGluIHRoZSBrZXJuZWwgd2l0 aG91dCBpdC4KPiA+IAo+IAo+IFRoYW5rcyBmb3IgY2xhcmlmeWluZy4gVGhhdCB3b3VsZCBtZWFu IHRoYXQgaW5kZWVkIHdlIHdvdWxkIGhhdmUgaGFyZHdhcmUtCj4gcHJvdmlkZWQgS0RGIGltcGxl bWVudGF0aW9ucyB0aGF0IG1heSBiZSB1c2FibGUgd2l0aCB0aGUga2VybmVsIGNyeXB0byBBUEku Cj4gCj4gWy4uLl0KPiA+IAo+ID4gPiBXb3VsZCBpdCBiZSBhcHByb3ByaWF0ZSwgdG8gaW1wbGVt ZW50IGEgdHlwZSBjYXN0IHRvIGEgc3RydWN0dXJlIGZyb20KPiA+ID4gdGhlIHU4IHBvaW50ZXI/ Cj4gPiA+IAo+ID4gPiBFLmcuIGZvciB0aGUgYWZvcmVtZW50aW9uZWQgbGFiZWwvY29udGV4dCBk YXRhLCB3ZSBjb3VsZCBkZWZpbmUKPiA+ID4gc29tZXRoaW5nIGxpa2UKPiA+ID4gCj4gPiA+IHN0 cnVjdCBjcnlwdG9fa2RmX2N0ciB7Cj4gPiA+IAo+ID4gPiAJY2hhciAqbGFiZWw7Cj4gPiA+IAlz aXplX3QgbGFiZWxfbGVuOwo+ID4gPiAJdTggKmNvbnRleHRVOwo+ID4gPiAJc2l6ZV90IGNvbnRl eHRVX2xlbjsKPiA+ID4gCXU4ICpjb250ZXh0VjsKPiA+ID4gCXNpemVfdCBjb250ZXh0Vl9sZW47 Cj4gPiA+IAo+ID4gPiB9Owo+ID4gPiAKPiA+ID4gQW5kIHRoZSBpbXBsZW1lbnRhdGlvbiBvZiB0 aGUgZ2VuZXJhdGUgZnVuY3Rpb24gZm9yIENUUiBLREYgd291bGQKPiA+ID4gCj4gPiA+IHRoZW4g aGF2ZSBhICB0eXBlIGNhc3QgYWxvbmcgdGhlIGZvbGxvd2luZyBsaW5lczoKPiA+ID4gCWlmIChz bGVuICE9IHNpemVvZihzdHJ1Y3QgY3J5cHRvX2tkZl9jdHIpKQo+ID4gPiAJCj4gPiA+IAkJcmV0 dXJuIC1FSU5WQUw7Cj4gPiA+IAkKPiA+ID4gCWNvbnN0IHN0cnVjdCBjcnlwdG9fa2RmX2N0ciAq a2RmX2N0cl9pbnB1dCA9IChzdHJ1Y3QKPiA+ID4gCj4gPiA+IGNyeXB0b19rZGZfY3RyICopc3Jj Owo+ID4gPiAKPiA+ID4gCj4gPiA+IEZvciBkaWZmZXJlbnQgS0RGcywgZGlmZmVyZW50IHN0cnVj dHMgd291bGQgYmUgbmVlZGVkLgo+ID4gCj4gPiBBY3R1YWxseSwgd2UgcHJvYmFibHkganVzdCBu ZWVkIHRoZSBpbnB1dCBrZXkgKG9yIHNlY3JldCBtYXRlcmlhbCksIHRoZQo+ID4gY29uY2F0ZW5h dGlvbiBhbmQgdGhlIG51bWJlciBvZiBvdXRwdXQgYml0cy4KPiAKPiBUaGFua3MgZm9yIGNvbmZp cm1pbmcuIFRob3VnaCwgd2hlbiBpdCBjb21lcyB0byBIS0RGIChub3QgdGhhdCBJIHNlZSBpdCBi ZWluZyAKPiBuZWVkZWQgb3IgcmVxdWlyZWQgaW4gdGhlIGtlcm5lbCksIHRoZXJlIGlzIGEgbmVl ZCB0byBzcGxpdCB1cCB0aGUgc3JjIHBvaW50ZXIgCj4gc2luY2UgdGhlIG1lbnRpb25lZCBpbnB1 dCBpcyB1c2VkIGluIGRpZmZlcmVudCB3YXlzLgo+IAo+IEluIG9yZGVyIHRvIHRyeSB0byBnZXQg dGhlIGltcGxlbWVudGF0aW9uIGFuZCB0aHVzIHRoZSBpbnRlcmZhY2UgcmlnaHQsIEkgCj4gd291 bGQgc3VnZ2VzdCB0byBhdCBsZWFzdCBoYXZlIGEgY29uc2Vuc3VzIG9uIGhvdyB0byBoYW5kbGUg c3VjaCBzaXR1YXRpb25zLgo+IAo+IFRodXMsIHdvdWxkIHRoZSBwcm9wb3NhbCBiZSBhY2NlcHRh YmxlIGZvciBzdWNoIEtERnMgdGhhdCBtYXkgbmVlZCB0byBoYXZlIAo+IGRpZmZlcmVudCBjb21w b25lbnRzIGNvbW11bmljYXRlZCBhcyBpbnB1dCB0byB0aGUgS0RGPwo+IAoKRldJVywgaXQncyBi ZWVuIHZlcnkgc2xvdyBnb2luZyBzaW5jZSBJJ3ZlIGJlZW4gd29ya2luZyBvbiBvdGhlciBwcm9q ZWN0cyBhbmQgSQphbHNvIG5lZWQgdG8gYmUgdmVyeSBzdXJlIHRvIGdldCB0aGUgQVBJIGNoYW5n ZXMgcmlnaHQsIGJ1dCBJIHN0aWxsIHBsYW4gdG8KY2hhbmdlIHRoZSBLREYgaW4gZnNjcnlwdCAo YS5rLmEuIGV4dDQvZjJmcy91YmlmcyBlbmNyeXB0aW9uKSB0byBIS0RGLVNIQTUxMiBhcwpwYXJ0 IG9mIGEgbGFyZ2VyIHNldCBvZiBpbXByb3ZlbWVudHMgdG8gaG93IGZzY3J5cHQgZW5jcnlwdGlv biBrZXlzIGFyZSBtYW5hZ2VkLgpJIHNlbnQgdGhlIGxhc3QgcGF0Y2hzZXQgYSB5ZWFyIGFnbwoo aHR0cHM6Ly9tYXJjLmluZm8vP2w9bGludXgtZnNkZXZlbCZtFTA4Nzk0OTMyMDYyNTcpIGJ1dCBJ J20gd29ya2luZyB0byByZXZpdmUKaXQuICBJbiB0aGUgd29yay1pbi1wcm9ncmVzcyB2ZXJzaW9u IGluIG15IGdpdCB0cmVlLCB0aGlzIGlzIHRoZSBjb21taXQgdGhhdAphZGRzIGEgSEtERiBpbXBs ZW1lbnRhdGlvbiBhcyBmcy9jcnlwdG8vaGtkZi5jOgpodHRwczovL2dpdC5rZXJuZWwub3JnL3B1 Yi9zY20vbGludXgva2VybmVsL2dpdC9lYmlnZ2Vycy9saW51eC5naXQvY29tbWl0Lz9pZOhhNzg3 NjcxMzFjOTcxN2VlODM4ZjBjNGUzMDc5NDhkNjVhNDQyNwpJdCBiYXNpY2FsbHkganVzdCB3cmFw cyBhIGNyeXB0b19zaGFzaCBmb3IgImhtYWMoc2hhNTEyKSIuCgpJJ2QgYmUgZmluZSB3aXRoIHVz aW5nIGEgY29tbW9uIGltcGxlbWVudGF0aW9uIGluc3RlYWQsIHByb3ZpZGVkIHRoYXQgaXQgZ2l2 ZXMKdGhlIHNhbWUgZnVuY3Rpb25hbGl0eSwgaW5jbHVkaW5nIHN1cHBvcnRpbmcgdXNlci1zcGVj aWZpZWQgc2FsdCBhbmQKYXBwbGljYXRpb24tc3BlY2lmaWMgaW5mbyBzdHJpbmdzLCBhbmQgaXNu J3Qgc2xvd2VyIG9yIG1vcmUgY29tcGxleCB0byB1c2UuCgooVGhpcyBjb21tZW50IGlzIHNvbGVs eSBvbiB0aGUgdGFuZ2VudGlhbCBkaXNjdXNzaW9uIGFib3V0IEtERiBpbXBsZW1lbnRhdGlvbnM7 CkkndmUgbm90IGxvb2tlZCBhdCB0aGUgaGliZXJuYXRpb24gaW1hZ2UgZW5jcnlwdGlvbiBzdHVm ZiB5ZXQuKQoKLSBFcmlj