From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from out03.mta.xmission.com ([166.70.13.233]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1ehQNp-0003O0-4s for kexec@lists.infradead.org; Fri, 02 Feb 2018 01:43:19 +0000 From: ebiederm@xmission.com (Eric W. Biederman) References: <20180201231116.28077-1-jschoenh@amazon.de> Date: Thu, 01 Feb 2018 19:42:39 -0600 In-Reply-To: <20180201231116.28077-1-jschoenh@amazon.de> ("Jan H. \=\?utf-8\?Q\?Sch\=C3\=B6nherr\=22's\?\= message of "Fri, 2 Feb 2018 00:11:16 +0100") Message-ID: <87h8r0jhf4.fsf@xmission.com> MIME-Version: 1.0 Subject: Re: [PATCH] kexec: Allow to skip digest calculation for speed List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: "Jan H. =?utf-8?Q?Sch=C3=B6nherr?=" Cc: Thomas Gleixner , kexec@lists.infradead.org SmFuIEguIFNjaMO2bmhlcnIgPGpzY2hvZW5oQGFtYXpvbi5kZT4gd3JpdGVzOgoKPiBHaXZlIHRo ZSBhZG1pbmlzdHJhdG9yIHRoZSBhYmlsaXR5IHRvIHRyYWRlIGtleGVjIHNhZmV0eSBmb3Iga2V4 ZWMgc3BlZWQKPiBieSBkaXNhYmxpbmcgdGhlIGRpZ2VzdCBjYWxjdWxhdGlvbi92ZXJpZmljYXRp b24gZm9yIHJlZ3VsYXIga2V4ZWNzLgo+Cj4gVGhlIGJlaGF2aW9yIG9mIGtleGVjLW9uLWNyYXNo IGlzIG5vdCB0b3VjaGVkLgoKVGhlIHBlcmZvcm1hbmNlIG9mIHRoZSBkaWdlc3QgY2FjdWxhdGlv biBpcyBhY2NlcHRhYmxlIG9uIDM4NnMuICBPciBpdAp3YXMgeWVhcnMgYWdvIHdoZW4gSSB0ZXN0 ZWQgaXQgb24gYSAzODYuICBXaGF0IGlzIHRoZSBwcm9ibGVtIHlvdSBhcmUKaGF2aW5nLgoKSXMg dGhlcmUgc29tZXRoaW5nIHNpbGx5IGxpa2UgYSBjYWNoZSBkaXNhYmxlIGluIHlvdXIgY29uZmln dXJhdGlvbj8KCkVyaWMKCj4gU2lnbmVkLW9mZi1ieTogSmFuIEguIFNjaMO2bmhlcnIgPGpzY2hv ZW5oQGFtYXpvbi5kZT4KPiAtLS0KPiAgYXJjaC94ODYvS2NvbmZpZyAgICAgICAgICAgICAgIHwg MTIgKysrKysrKysrKysrCj4gIGFyY2gveDg2L3B1cmdhdG9yeS9wdXJnYXRvcnkuYyB8ICA5ICsr KysrKysrKwo+ICBrZXJuZWwva2V4ZWNfZmlsZS5jICAgICAgICAgICAgfCAgNSArKysrKwo+ICAz IGZpbGVzIGNoYW5nZWQsIDI2IGluc2VydGlvbnMoKykKPgo+IGRpZmYgLS1naXQgYS9hcmNoL3g4 Ni9LY29uZmlnIGIvYXJjaC94ODYvS2NvbmZpZwo+IGluZGV4IDIwZGEzOTFiNWYzMi4uN2IyNTdm NjU1MzI3IDEwMDY0NAo+IC0tLSBhL2FyY2gveDg2L0tjb25maWcKPiArKysgYi9hcmNoL3g4Ni9L Y29uZmlnCj4gQEAgLTE5ODQsNiArMTk4NCwxOCBAQCBjb25maWcgS0VYRUNfQlpJTUFHRV9WRVJJ RllfU0lHCj4gIAktLS1oZWxwLS0tCj4gIAkgIEVuYWJsZSBiekltYWdlIHNpZ25hdHVyZSB2ZXJp ZmljYXRpb24gc3VwcG9ydC4KPiAgCj4gK2NvbmZpZyBLRVhFQ19TS0lQX05PTkNSQVNIX0RJR0VT VAo+ICsJYm9vbCAiRGlzYWJsZSBkaWdlc3QgY2FsY3VsYXRpb24gZm9yIHJlZ3VsYXIga2V4ZWMi Cj4gKwlkZXBlbmRzIG9uIEtFWEVDCj4gKwktLS1oZWxwLS0tCj4gKwkgIERpc2FibGUgdGhlIGNh bGN1bGF0aW9uIGFuZCB2ZXJpZmljYXRpb24gb2YgdGhlIFNIQSBkaWdlc3QgYmVmb3JlCj4gKwkg IGFuZCBkdXJpbmcgYSByZWd1bGFyIGtleGVjLiBUaGlzIHNwZWVkcyB1cCBrZXhlYyBhIGJpdCBh dCB0aGUgY29zdAo+ICsJICBvZiBhIGJpdCBvZiBzYWZldHkuCj4gKwo+ICsJICBOb3RlLCB0aGF0 IHRoZSBkaWdlc3QgY2FsY3VsYXRpb24gaXMgc3RpbGwgZG9uZSBmb3IgYSBrZXhlYy1vbi1jcmFz aC4KPiArCj4gKwkgIElmIHVuc3VyZSwgc2F5IE4uCj4gKwo+ICBjb25maWcgQ1JBU0hfRFVNUAo+ ICAJYm9vbCAia2VybmVsIGNyYXNoIGR1bXBzIgo+ICAJZGVwZW5kcyBvbiBYODZfNjQgfHwgKFg4 Nl8zMiAmJiBISUdITUVNKQo+IGRpZmYgLS1naXQgYS9hcmNoL3g4Ni9wdXJnYXRvcnkvcHVyZ2F0 b3J5LmMgYi9hcmNoL3g4Ni9wdXJnYXRvcnkvcHVyZ2F0b3J5LmMKPiBpbmRleCA0NzBlZGFkOTZi YjkuLjJiNTE4OWI4NTFiMyAxMDA2NDQKPiAtLS0gYS9hcmNoL3g4Ni9wdXJnYXRvcnkvcHVyZ2F0 b3J5LmMKPiArKysgYi9hcmNoL3g4Ni9wdXJnYXRvcnkvcHVyZ2F0b3J5LmMKPiBAQCAtNDQsNiAr NDQsMTUgQEAgc3RhdGljIGludCB2ZXJpZnlfc2hhMjU2X2RpZ2VzdCh2b2lkKQo+ICAJdTggZGln ZXN0W1NIQTI1Nl9ESUdFU1RfU0laRV07Cj4gIAlzdHJ1Y3Qgc2hhMjU2X3N0YXRlIHNjdHg7Cj4g IAo+ICsjaWZkZWYgQ09ORklHX0tFWEVDX1NLSVBfTk9OQ1JBU0hfRElHRVNUCj4gKwkvKgo+ICsJ ICogU2tpcCBkaWdlc3QgdmVyaWZpY2F0aW9uIGZvciBub24tY3Jhc2gga2VybmVscywgd2UgdHJ1 c3QgdGhlCj4gKwkgKiBtZWNoYW5pc20gZW5vdWdoIHRvIHRyYWRlLW9mZiB0aGUgZGlnZXN0IGZv ciBhIHF1aWNrZXIga2V4ZWMKPiArCSAqLwo+ICsJaWYgKCFwdXJnYXRvcnlfYmFja3VwX2Rlc3Qp Cj4gKwkJcmV0dXJuIDA7Cj4gKyNlbmRpZgo+ICsKPiAgCXNoYTI1Nl9pbml0KCZzY3R4KTsKPiAg CWVuZCA9IHB1cmdhdG9yeV9zaGFfcmVnaW9ucyArIEFSUkFZX1NJWkUocHVyZ2F0b3J5X3NoYV9y ZWdpb25zKTsKPiAgCj4gZGlmZiAtLWdpdCBhL2tlcm5lbC9rZXhlY19maWxlLmMgYi9rZXJuZWwv a2V4ZWNfZmlsZS5jCj4gaW5kZXggZTViY2Q5NGMxZWZiLi5hYzAxYjM0YTdmODcgMTAwNjQ0Cj4g LS0tIGEva2VybmVsL2tleGVjX2ZpbGUuYwo+ICsrKyBiL2tlcm5lbC9rZXhlY19maWxlLmMKPiBA QCAtNTMyLDYgKzUzMiwxMSBAQCBzdGF0aWMgaW50IGtleGVjX2NhbGN1bGF0ZV9zdG9yZV9kaWdl c3RzKHN0cnVjdCBraW1hZ2UgKmltYWdlKQo+ICAJc3RydWN0IGtleGVjX3NoYV9yZWdpb24gKnNo YV9yZWdpb25zOwo+ICAJc3RydWN0IHB1cmdhdG9yeV9pbmZvICpwaSA9ICZpbWFnZS0+cHVyZ2F0 b3J5X2luZm87Cj4gIAo+ICsjaWZkZWYgQ09ORklHX0tFWEVDX1NLSVBfTk9OQ1JBU0hfRElHRVNU Cj4gKwlpZiAoaW1hZ2UtPnR5cGUgIT0gS0VYRUNfVFlQRV9DUkFTSCkKPiArCQlyZXR1cm4gMDsK PiArI2VuZGlmCj4gKwo+ICAJemVyb19idWYgPSBfX3ZhKHBhZ2VfdG9fcGZuKFpFUk9fUEFHRSgw KSkgPDwgUEFHRV9TSElGVCk7Cj4gIAl6ZXJvX2J1Zl9zeiA9IFBBR0VfU0laRTsKCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmtleGVjIG1haWxpbmcgbGlz dAprZXhlY0BsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21h aWxtYW4vbGlzdGluZm8va2V4ZWMK