From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from s3.sipsolutions.net ([2a01:4f8:191:4433::2] helo=sipsolutions.net) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lLU7I-00EN1m-Tj for linux-um@lists.infradead.org; Sun, 14 Mar 2021 17:01:26 +0000 Message-ID: Subject: Re: [RFC v8 09/20] um: lkl: kernel thread support From: Johannes Berg Date: Sun, 14 Mar 2021 18:01:20 +0100 In-Reply-To: <3aecd66b9314f2b435fb6df029dc5829bf8c50ff.1611103406.git.thehajime@gmail.com> References: <3aecd66b9314f2b435fb6df029dc5829bf8c50ff.1611103406.git.thehajime@gmail.com> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-um" Errors-To: linux-um-bounces+geert=linux-m68k.org@lists.infradead.org To: Hajime Tazaki , linux-um@lists.infradead.org, jdike@addtoit.com, richard@nod.at, anton.ivanov@cambridgegreys.com Cc: tavi.purdila@gmail.com, linux-kernel-library@freelists.org, linux-arch@vger.kernel.org, retrage01@gmail.com T24gV2VkLCAyMDIxLTAxLTIwIGF0IDExOjI3ICswOTAwLCBIYWppbWUgVGF6YWtpIHdyb3RlOgoK PiArdm9pZCBfX3dlYWsgc3ViYXJjaF9jcHVfaWRsZSh2b2lkKQo+ICt7Cj4gK30KPiArCj4gwqB2 b2lkIGFyY2hfY3B1X2lkbGUodm9pZCkKPiDCoHsKPiDCoAljcHVfdGFza3NbY3VycmVudF90aHJl YWRfaW5mbygpLT5jcHVdLnBpZCA9IG9zX2dldHBpZCgpOwo+IMKgCXVtX2lkbGVfc2xlZXAoKTsK PiArCXN1YmFyY2hfY3B1X2lkbGUoKTsKCgpOb3Qgc3VyZSB0aGF0IGJlbG9uZ3MgaW50byB0aGlz IHBhdGNoIGluIHRoZSBmaXJzdCBwbGFjZSwgYnV0IHdvdWxkbid0Cml0IG1ha2Ugc29tZSBzZW5z ZSB0byBtb3ZlIHRoZSB1bV9pZGxlX3NsZWVwKCkgaW50byB0aGUKc3ViYXJjaF9jcHVfaWRsZSgp IHNvIExLTCAob3IgYXBwcyB1c2luZyBpdCkgY2FuIGdldCBmdWxsIGNvbnRyb2w/Cgo+ICsvKgo+ ICsgKiBUaGlzIHN0cnVjdHVyZSBpcyB1c2VkIHRvIGdldCBhY2Nlc3MgdG8gdGhlICJMS0wgQ1BV IiB0aGF0IGFsbG93cyB1cyB0byBydW4KPiArICogTGludXggY29kZS4gQmVjYXVzZSB3ZSBoYXZl IHRvIGRlYWwgd2l0aCB2YXJpb3VzIHN5bmNocm9uaXphdGlvbiByZXF1aXJlbWVudHMKPiArICog YmV0d2VlbiBpZGxlIHRocmVhZCwgc3lzdGVtIGNhbGxzLCBpbnRlcnJ1cHRzLCAicmVlbnRyYW5j eSIsIENQVSBzaHV0ZG93biwKPiArICogaW1iYWxhbmNlIHdha2UgdXAgKGkuZS4gYWNxdWlyZSB0 aGUgQ1BVIGZyb20gb25lIHRocmVhZCBhbmQgcmVsZWFzZSBpdCBmcm9tCj4gKyAqIGFub3RoZXIp LCB3ZSBjYW4ndCB1c2UgYSBzaW1wbGUgc3luY2hyb25pemF0aW9uIG1lY2hhbmlzbSBzdWNoIGFz IChyZWN1cnNpdmUpCj4gKyAqIG11dGV4IG9yIHNlbWFwaG9yZS4gSW5zdGVhZCwgd2UgdXNlIGEg bXV0ZXggYW5kIGEgYnVuY2ggb2Ygc3RhdHVzIGRhdGEgcGx1cyBhCj4gKyAqIHNlbWFwaG9yZS4K PiArICovCgpIb25lc3RseSwgc29tZSBvZiB0aGF0IGRvY3VtZW50YXRpb24sIGFuZCBwZXJoYXBz IGV2ZW4gdGhlIHdob2xlIEFQSSBmb3IKTEtMIGZlZWxzIGxpa2UgaXQgc2hvdWxkIGNvbWUgZWFy bGllciBpbiB0aGUgc2VyaWVzLgoKRS5nLiBub3cgaGVyZSBJIHNlZSBhbGwgdGhvc2UgbGtsX211 dGV4X2xvY2soKSAod2hlcmUgYnR3IGRvY3VtZW50YXRpb24KZG9lc24ndCBhbHdheXMgbWF0Y2gg dGhlIGZ1bmN0aW9uIG5hbWUpLCBzbyB5b3UgKmRvbid0KiBoYXZlIHRoZQpmdW5jdGlvbiBvcHMg cG9pbnRlciBzdHJ1Y3QgYW55bW9yZT8KCkl0J2QgYmUgbmljZSB0byBoYXZlIHNvbWUgaGlnaC1s ZXZlbCB2aWV3IG9mIHdoYXQgYXBwbGljYXRpb25zICptdXN0KgpkbywgYW5kIHdoYXQgdGhleSAq Y2FuKiBkbywgYXQgdGhlIGJlZ2lubmluZyBvZiB0aGlzIHNlcmllcy4KCj4gKwkgKgo+ICsJICog VGhpcyBhbGdvcml0aG0gYXNzdW1lcyB0aGF0IHdlIG5ldmVyIGhhdmUgbW9yZSB0aGUgTUFYX1RI UkVBRFMKPiArCSAqIHJlcXVlc3RpbmcgQ1BVIGFjY2Vzcy4KPiArCSAqLwo+ICsJI2RlZmluZSBN QVhfVEhSRUFEUyAxMDAwMDAwCgpXaGF0IGltcGxpY2F0aW9ucyBkb2VzIHRoYXQgdmFsdWUgaGF2 ZT8gSXQgc2VlbXMgc2V2ZXJhbCBvcmRlcnMgb2YKbWFnbml0dWRlIHRvbyBsYXJnZT8KCj4gK3N0 YXRpYyBpbnQgX19jcHVfdHJ5X2dldF9sb2NrKGludCBuKQo+ICt7Cj4gKwlsa2xfdGhyZWFkX3Qg c2VsZjsKPiArCj4gKwlpZiAoX19zeW5jX2ZldGNoX2FuZF9hZGQoJmNwdS5zaHV0ZG93bl9nYXRl LCBuKSA+PSBNQVhfVEhSRUFEUykKPiArCQlyZXR1cm4gLTI7CgpGZWVscyBsaWtlIHRoYXQgY291 bGQgYmUgc29tZSBraW5kIG9mIGVudW0gaGVyZSBpbnN0ZWFkIG9mIC0yIGFuZCAtMSBhbmQKYWxs IHRoYXQgbWFnaWMuCgo+ICsJLyogd2hlbiBzb21lYm9keSBob2xkcyBhIGxvY2ssIHNsZWVwIHVu dGlsIHJlbGVhc2VkLAo+ICsJICogd2l0aCBvYnRhaW5pbmcgYSBzZW1hcGhvcmUgKGNwdS5zZW0p Cj4gKwkgKi8KCm5pdDogLyoKICAgICAgKiB1c2UgdGhpcyBjb21tZW50IHN0eWxlCiAgICAgICov Cgo+ICt2b2lkIHN3aXRjaF90aHJlYWRzKGptcF9idWYgKm1lLCBqbXBfYnVmICp5b3UpCj4gK3sK PiArCS8qIE5PUCAqLwo+ICt9CgpXaHksIGFjdHVhbGx5PwoKQWdhaW4sIGdvZXMgYmFjayB0byB0 aGUgaGlnaC1sZXZlbCBkZXNpZ24gdGhpbmcgSSBhbGx1ZGVkIHRvIGFib3ZlLCBidXQKaXQncyBu b3QgY2xlYXIgdG8gbWUgd2h5IHlvdSBuZWVkIGlkbGUgKHdoaWNoIGltcGxpZXMgeW91J3JlIHJ1 bm5pbmcgdGhlCnNjaGVkdWxlcikgYnV0IG5vdCB0aGlzICh3aGljaCBpbXBsaWVzIHlvdSdyZSAq bm90KiBydW5uaW5nIHRoZQpzY2hlZHVsZXIpPwoKam9oYW5uZXMKCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC11bSBtYWlsaW5nIGxpc3QKbGlu dXgtdW1AbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWls bWFuL2xpc3RpbmZvL2xpbnV4LXVtCg==