From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Begunkov Date: Mon, 21 Sep 2020 16:13:18 +0000 Subject: Re: [PATCH 1/9] kernel: add a PF_FORCE_COMPAT flag Message-Id: <486c92d0-0f2e-bd61-1ab8-302524af5e08@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="ibm852" Content-Transfer-Encoding: base64 List-Id: References: <563138b5-7073-74bc-f0c5-b2bad6277e87@gmail.com> In-Reply-To: <563138b5-7073-74bc-f0c5-b2bad6277e87@gmail.com> To: Andy Lutomirski , Arnd Bergmann Cc: Andy Lutomirski , Christoph Hellwig , Al Viro , Andrew Morton , Jens Axboe , David Howells , linux-arm-kernel , X86 ML , LKML , "open list:MIPS" , Parisc List , linuxppc-dev , linux-s390 , sparclinux , linux-block , Linux SCSI List , Linux FS Devel , linux-aio , io-uring@vger.kernel.org, linux-arch , Linux-MM , Network Development , keyrings@vger.kernel.org, LSM List T24gMjEvMDkvMjAyMCAxOToxMCwgUGF2ZWwgQmVndW5rb3Ygd3JvdGU6Cj4gT24gMjAvMDkvMjAy MCAwMToyMiwgQW5keSBMdXRvbWlyc2tpIHdyb3RlOgo+Pgo+Pj4gT24gU2VwIDE5LCAyMDIwLCBh dCAyOjE2IFBNLCBBcm5kIEJlcmdtYW5uIDxhcm5kQGFybmRiLmRlPiB3cm90ZToKPj4+Cj4+PiDv u79PbiBTYXQsIFNlcCAxOSwgMjAyMCBhdCA2OjIxIFBNIEFuZHkgTHV0b21pcnNraSA8bHV0b0Br ZXJuZWwub3JnPiB3cm90ZToKPj4+Pj4gT24gRnJpLCBTZXAgMTgsIDIwMjAgYXQgODoxNiBBTSBD aHJpc3RvcGggSGVsbHdpZyA8aGNoQGxzdC5kZT4gd3JvdGU6Cj4+Pj4+IE9uIEZyaSwgU2VwIDE4 LCAyMDIwIGF0IDAyOjU4OjIyUE0gKzAxMDAsIEFsIFZpcm8gd3JvdGU6Cj4+Pj4+PiBTYWlkIHRo YXQsIHdoeSBub3QgcHJvdmlkZSBhIHZhcmlhbnQgdGhhdCB3b3VsZCB0YWtlIGFuIGV4cGxpY2l0 Cj4+Pj4+PiAiaXMgaXQgY29tcGF0IiBhcmd1bWVudCBhbmQgdXNlIGl0IHRoZXJlPyAgQW5kIGhh dmUgdGhlIG5vcm1hbAo+Pj4+Pj4gb25lIHBhc3MgaW5fY29tcGF0X3N5c2NhbGwoKSB0byB0aGF0 Li4uCj4+Pj4+Cj4+Pj4+IFRoYXQgd291bGQgaGVscCB0byBub3QgaW50cm9kdWNlIGEgcmVncmVz c2lvbiB3aXRoIHRoaXMgc2VyaWVzIHllcy4KPj4+Pj4gQnV0IGl0IHdvdWxkbid0IGZpeCBleGlz dGluZyBidWdzIHdoZW4gaW9fdXJpbmcgaXMgdXNlZCB0byBhY2Nlc3MKPj4+Pj4gcmVhZCBvciB3 cml0ZSBtZXRob2RzIHRoYXQgdXNlIGluX2NvbXBhdF9zeXNjYWxsKCkuICBPbmUgZXhhbXBsZSB0 aGF0Cj4+Pj4+IEkgcmVjZW50bHkgcmFuIGludG8gaXMgZHJpdmVycy9zY3NpL3NnLmMuCj4+Pgo+ Pj4gQWgsIHNvIHJlYWRpbmcgL2Rldi9pbnB1dC9ldmVudCogd291bGQgc3VmZmVyIGZyb20gdGhl IHNhbWUgaXNzdWUsCj4+PiBhbmQgdGhhdCBvbmUgd291bGQgaW4gZmFjdCBiZSBicm9rZW4gYnkg eW91ciBwYXRjaCBpbiB0aGUgaHlwb3RoZXRpY2FsCj4+PiBjYXNlIHRoYXQgc29tZW9uZSB0cmll ZCB0byB1c2UgaW9fdXJpbmcgdG8gcmVhZCAvZGV2L2lucHV0L2V2ZW50IG9uIHgzMi4uLgo+Pj4K Pj4+IEZvciByZWZlcmVuY2UsIEkgY2hlY2tlZCB0aGUgc29ja2V0IHRpbWVzdGFtcCBoYW5kbGlu ZyB0aGF0IGhhcyBhCj4+PiBudW1iZXIgb2YgY29ybmVyIGNhc2VzIHdpdGggdGltZTMyL3RpbWU2 NCBmb3JtYXRzIGluIGNvbXBhdCBtb2RlLAo+Pj4gYnV0IG5vbmUgb2YgdGhvc2UgYXBwZWFyIHRv IGJlIGFmZmVjdGVkIGJ5IHRoZSBwcm9ibGVtLgo+Pj4KPj4+PiBBc2lkZSBmcm9tIHRoZSBwb3Rl bnRpYWxseSBuYXN0eSB1c2Ugb2YgcGVyLXRhc2sgdmFyaWFibGVzLCBvbmUgdGhpbmcKPj4+PiBJ IGRvbid0IGxpa2UgYWJvdXQgUEZfRk9SQ0VfQ09NUEFUIGlzIHRoYXQgaXQncyBvbmUtd2F5LiAg SWYgd2UncmUKPj4+PiBnb2luZyB0byBoYXZlIGEgZ2VuZXJpYyBtZWNoYW5pc20gZm9yIHRoaXMs IHNob3VsZG4ndCB3ZSBhbGxvdyBhIGZ1bGwKPj4+PiBvdmVycmlkZSBvZiB0aGUgc3lzY2FsbCBh cmNoIGluc3RlYWQgb2YganVzdCBhbGxvd2luZyBmb3JjaW5nIGNvbXBhdAo+Pj4+IHNvIHRoYXQg YSBjb21wYXQgc3lzY2FsbCBjYW4gZG8gYSBub24tY29tcGF0IG9wZXJhdGlvbj8KPj4+Cj4+PiBU aGUgb25seSByZWFzb24gaXQncyBuZWVkZWQgaGVyZSBpcyB0aGF0IHRoZSBjYWxsZXIgaXMgaW4g YSBrZXJuZWwKPj4+IHRocmVhZCByYXRoZXIgdGhhbiBhIHN5c3RlbSBjYWxsLiBBcmUgdGhlcmUg YW55IHBvc3NpYmxlIHNjZW5hcmlvcwo+Pj4gd2hlcmUgb25lIHdvdWxkIGFjdHVhbGx5IG5lZWQg dGhlIG9wcG9zaXRlPwo+Pj4KPj4KPj4gSSBjYW4gY2VydGFpbmx5IGltYWdpbmUgbmVlZGluZyB0 byBmb3JjZSB4MzIgbW9kZSBmcm9tIGEga2VybmVsIHRocmVhZC4KPj4KPj4gQXMgZm9yIHRoZSBv dGhlciBkaXJlY3Rpb246IHdoYXQgZXhhY3RseSBhcmUgdGhlIGRlc2lyZWQgYml0bmVzcy9hcmNo IHNlbWFudGljcyBvZiBpb191cmluZz8gIElzIHRoZSBvcGVyYXRpb24gYml0bmVzcyBjaG9zZW4g YnkgdGhlIGlvX3VyaW5nIGNyZWF0aW9uIG9yIGJ5IHRoZSBpb191cmluZ19lbnRlcigpIGJpdG5l c3M/Cj4gCj4gSXQncyByYXRoZXIgdGhlIHNlY29uZCBvbmUuIEV2ZW4gdGhvdWdoIEFGQUlSIGl0 IHdhc24ndCBkaXNjdXNzZWQKPiBzcGVjaWZpY2FsbHksIHRoYXQgaG93IGl0IHdvcmtzIG5vdyAo X3BhcnRpYWxseV8pLgoKRG91YmxlIGNoZWNrZWQgLS0gSSdtIHdyb25nLCB0aGF0J3MgdGhlIGZv cm1lciBvbmUuIE1vc3Qgb2YgaXQgaXMgYmFzZWQKb24gYSBmbGFnIHRoYXQgd2FzIHNldCBhbiBj cmVhdGlvbi4KCi0tIApQYXZlbCBCZWd1bmtvdg==