From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael Kerrisk (man-pages)" Subject: Re: Documenting the ioctl interfaces to discover relationships between namespaces Date: Mon, 12 Dec 2016 07:13:18 +0100 Message-ID: <3552ea0d-07a8-5fb7-d863-f678901bed09@gmail.com> References: <87poky5ca9.fsf@xmission.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <87poky5ca9.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: "Eric W. Biederman" Cc: Andrei Vagin , Linux API , Containers , lkml , James Bottomley , mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, "linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "Serge E. Hallyn" , Alexander Viro List-Id: linux-api@vger.kernel.org W0ZpeGluZyBTZXJnZSdzIGFkZHJlc3MgaW4gbXkgb3JpZ2luYWwgQ0NdCgpPbiAxMi8xMS8yMDE2 IDExOjMwIFBNLCBFcmljIFcuIEJpZWRlcm1hbiB3cm90ZToKPiAiTWljaGFlbCBLZXJyaXNrICht YW4tcGFnZXMpIiA8bXRrLm1hbnBhZ2VzQGdtYWlsLmNvbT4gd3JpdGVzOgo+IAo+PiBbd2FzOiBb UEFUQ0ggMC80IHYzXSBBZGQgYW4gaW50ZXJmYWNlIHRvIGRpc2NvdmVyIHJlbGF0aW9uc2hpcHMK Pj4gYmV0d2VlbiBuYW1lc3BhY2VzXQo+IAo+IE9uZSBzbWFsbCBjb21tZW50IGJlbG93Lgo+IAo+ Pgo+PiAgICBJbnRyb3NwZWN0aW5nIG5hbWVzcGFjZSByZWxhdGlvbnNoaXBzCj4+ICAgICAgICBT aW5jZSBMaW51eCA0LjksIHR3byBpb2N0bCgyKSBvcGVyYXRpb25zICBhcmUgIHByb3ZpZGVkICB0 byAgYWxsb3cKPj4gICAgICAgIGludHJvc3BlY3Rpb24gIG9mICBuYW1lc3BhY2UgcmVsYXRpb25z aGlwcyAoc2VlIHVzZXJfbmFtZXNwYWNlcyg3KQo+PiAgICAgICAgYW5kIHBpZF9uYW1lc3BhY2Vz KDcpKS4gIFRoZSBmb3JtIG9mIHRoZSBjYWxscyBpczoKPj4KPj4gICAgICAgICAgICBpb2N0bChm ZCwgcmVxdWVzdCk7Cj4+Cj4+ICAgICAgICBJbiBlYWNoIGNhc2UsIGZkIHJlZmVycyB0byBhIC9w cm9jL1twaWRdL25zLyogZmlsZS4KPj4KPj4gICAgICAgIE5TX0dFVF9VU0VSTlMKPj4gICAgICAg ICAgICAgICBSZXR1cm5zIGEgZmlsZSBkZXNjcmlwdG9yIHRoYXQgcmVmZXJzIHRvICB0aGUgIG93 bmluZyAgdXNlcgo+PiAgICAgICAgICAgICAgIG5hbWVzcGFjZSBmb3IgdGhlIG5hbWVzcGFjZSBy ZWZlcnJlZCB0byBieSBmZC4KPj4KPj4gICAgICAgIE5TX0dFVF9QQVJFTlQKPj4gICAgICAgICAg ICAgICBSZXR1cm5zICBhIGZpbGUgZGVzY3JpcHRvciB0aGF0IHJlZmVycyB0byB0aGUgcGFyZW50 IG5hbWVz4oCQCj4+ICAgICAgICAgICAgICAgcGFjZSBvZiB0aGUgbmFtZXNwYWNlIHJlZmVycmVk IHRvIGJ5IGZkLiAgVGhpcyBvcGVyYXRpb24gaXMKPj4gICAgICAgICAgICAgICB2YWxpZCAgb25s eSBmb3IgaGllcmFyY2hpY2FsIG5hbWVzcGFjZXMgKGkuZS4sIFBJRCBhbmQgdXNlcgo+PiAgICAg ICAgICAgICAgIG5hbWVzcGFjZXMpLiAgRm9yIHVzZXIgbmFtZXNwYWNlcywgTlNfR0VUX1BBUkVO VCBpcyBzeW5vbnnigJAKPj4gICAgICAgICAgICAgICBtb3VzIHdpdGggTlNfR0VUX1VTRVJOUy4K Pj4KPj4gICAgICAgIEluIGVhY2ggY2FzZSwgdGhlIHJldHVybmVkIGZpbGUgZGVzY3JpcHRvciBp cyBvcGVuZWQgd2l0aCBPX1JET05MWQo+PiAgICAgICAgYW5kIE9fQ0xPRVhFQyAoY2xvc2Utb24t ZXhlYykuCj4+Cj4+ICAgICAgICBCeSBhcHBseWluZyBmc3RhdCgyKSB0byB0aGUgcmV0dXJuZWQg ZmlsZSBkZXNjcmlwdG9yLCBvbmUgIG9idGFpbnMKPj4gICAgICAgIGEgIHN0YXQgc3RydWN0dXJl IHdob3NlIHN0X2lubyAoaW5vZGUgbnVtYmVyKSBmaWVsZCBpZGVudGlmaWVzIHRoZQo+PiAgICAg ICAgb3duaW5nL3BhcmVudCBuYW1lc3BhY2UuICBUaGlzIGlub2RlIG51bWJlciBjYW4gIGJlICBt YXRjaGVkICB3aXRoCj4+ICAgICAgICB0aGUgIGlub2RlICBudW1iZXIgIG9mICBhbm90aGVyICAv cHJvYy9bcGlkXS9ucy97cGlkLHVzZXJ9IGZpbGUgdG8KPj4gICAgICAgIGRldGVybWluZSB3aGV0 aGVyIHRoYXQgaXMgdGhlIG93bmluZy9wYXJlbnQgbmFtZXNwYWNlLgo+IAo+IExpa2UgYWxsIGZz dGF0IGlub2RlIGNvbXBhcmlzb25zIHRvIGJlIGZ1bGx5IGFjY3VyYXRlIHlvdSBuZWVkIHRvCj4g Y29tcGFyZSBib3RoIHRoZSBzdF9pbm8gYW5kIHN0X2Rldi4gIEkgcmVzZXJ2ZSB0aGUgcmlnaHQg Zm9yIHN0X2RldiB0bwo+IGJlIHNpZ25pZmljYW50IHdoZW4gY29tcGFyaW5nIG5hbWVzcGFjZXMu ICBPdGhlcndpc2UgSSBtaWdodCBoYXZlIHRvCj4gY3JlYXRlIGEgbmFtZXNwYWNlIG9mIG5hbWVz cGFjZXMgc29tZWRheSBhbmQgdGhhdCBpcyB1Z2x5LgoKQWggeWVzLiBUaGFua3MgZm9yIGNhdGNo aW5nIHRoYXQuIEkndmUgYWRqdXN0ZWQgdGhlIHRleHQsCmFuZCB0aGUgZXhhbXBsZSBwcm9ncmFt LgoKQ2hlZXJzLAoKTWljaGFlbAoKPj4gICAgICAgIEVpdGhlciBvZiB0aGVzZSBpb2N0bCgyKSBv cGVyYXRpb25zIGNhbiBmYWlsICB3aXRoICB0aGUgIGZvbGxvd2luZwo+PiAgICAgICAgZXJyb3I6 Cj4+Cj4+ICAgICAgICBFUEVSTSAgVGhlICByZXF1ZXN0ZWQgIG5hbWVzcGFjZSBpcyBvdXRzaWRl IG9mIHRoZSBjYWxsZXIncyBuYW1lc+KAkAo+PiAgICAgICAgICAgICAgIHBhY2Ugc2NvcGUuICBU aGlzIGVycm9yIGNhbiBvY2N1ciBpZiwgZm9yIGV4YW1wbGUsIHRoZSBvd27igJAKPj4gICAgICAg ICAgICAgICBpbmcgIHVzZXIgIG5hbWVzcGFjZSBpcyBhbiBhbmNlc3RvciBvZiB0aGUgY2FsbGVy J3MgY3VycmVudAo+PiAgICAgICAgICAgICAgIHVzZXIgbmFtZXNwYWNlLiAgSXQgY2FuIGFsc28g b2NjdXIgb24gIGF0dGVtcHRzICB0byAgb2J0YWluCj4+ICAgICAgICAgICAgICAgdGhlIHBhcmVu dCBvZiB0aGUgaW5pdGlhbCB1c2VyIG9yIFBJRCBuYW1lc3BhY2UuCj4+Cj4+ICAgICAgICBBZGRp dGlvbmFsbHksICB0aGUgIE5TX0dFVF9QQVJFTlQgb3BlcmF0aW9uIGNhbiBmYWlsIHdpdGggdGhl IGZvbOKAkAo+PiAgICAgICAgbG93aW5nIGVycm9yOgo+Pgo+PiAgICAgICAgRUlOVkFMIGZkIHJl ZmVycyB0byBhIG5vbmhpZXJhcmNoaWNhbCBuYW1lc3BhY2UuCj4+Cj4+ICAgICAgICBTZWUgdGhl IEVYQU1QTEUgc2VjdGlvbiBmb3IgYW4gZXhhbXBsZSBvZiB0aGUgdXNlIG9mIHRoZXNlICBvcGVy YeKAkAo+PiAgICAgICAgdGlvbnMuCj4+Cj4+ICAgIFsuLi5dCj4gCj4gRXJpYwo+IAoKCi0tIApN aWNoYWVsIEtlcnJpc2sKTGludXggbWFuLXBhZ2VzIG1haW50YWluZXI7IGh0dHA6Ly93d3cua2Vy bmVsLm9yZy9kb2MvbWFuLXBhZ2VzLwpMaW51eC9VTklYIFN5c3RlbSBQcm9ncmFtbWluZyBUcmFp bmluZzogaHR0cDovL21hbjcub3JnL3RyYWluaW5nLwpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpDb250YWluZXJzIG1haWxpbmcgbGlzdApDb250YWluZXJz QGxpc3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9u Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2NvbnRhaW5lcnM=