From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomeu Vizoso Subject: Re: [PATCH] drm: Don't allow interruptions when opening debugfs/crc Date: Fri, 7 Apr 2017 13:55:00 +0200 Message-ID: References: <20170407111712.13962-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5B9816EAE7 for ; Fri, 7 Apr 2017 11:55:06 +0000 (UTC) In-Reply-To: <20170407111712.13962-1-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Chris Wilson , dri-devel@lists.freedesktop.org Cc: Daniel Vetter List-Id: dri-devel@lists.freedesktop.org T24gMDQvMDcvMjAxNyAwMToxNyBQTSwgQ2hyaXMgV2lsc29uIHdyb3RlOgo+IFRoZSBjb2RlIGRv ZXMgbm90IGxpa2UgdG8gYmUgaW50ZXJydXB0ZWQgd2hlbiB3YWl0aW5nIGZvciB0aGUgZmlyc3QK PiB2YmxhbmsgYWZ0ZXIgb3BlbmluZyBhIGRlYnVnZnMvY3JjIGNoYW5uZWwsIHNvIGRvbid0Lgo+ IAo+IFs2NjI4NS43MTY4NzBdIFdBUk5JTkc6IENQVTogMSBQSUQ6IDE2NjE1IGF0IGRyaXZlcnMv Z3B1L2RybS9kcm1fZGVidWdmc19jcmMuYzoxODUgY3J0Y19jcmNfb3BlbisweDFkMC8weDFmMCBb ZHJtXQo+IFs2NjI4NS43MTY4NzddIE1vZHVsZXMgbGlua2VkIGluOiBpOTE1IGludGVsX3Bvd2Vy Y2xhbXAgY3JjdDEwZGlmX3BjbG11bCBjcmMzMl9wY2xtdWwgY3JjMzJjX2ludGVsIGdoYXNoX2Ns bXVsbmlfaW50ZWwgY3J5cHRkIGludGVsX2d0dCBpMmNfYWxnb19iaXQgbHBjX2ljaCBtZmRfY29y ZSBkcm1fa21zX2hlbHBlciBzeXNjb3B5YXJlYSBzeXNmaWxscmVjdCBzeXNpbWdibHQgZmJfc3lz X2ZvcHMgcHJpbWVfbnVtYmVycyBkcm0gdmlkZW8gYnV0dG9uIGF1dG9mczQgc2RfbW9kIGFoY2kg bGliYWhjaSBsaWJhdGEgaTJjX2k4MDEgc2NzaV9tb2QgaTJjX2Rlc2lnbndhcmVfcGxhdGZvcm0g aTJjX2Rlc2lnbndhcmVfY29yZSBpMmNfY29yZQo+IFs2NjI4NS43MTY5MjldIENQVTogMSBQSUQ6 IDE2NjE1IENvbW06IGttc19mcm9udGJ1ZmZlciBOb3QgdGFpbnRlZCA0LjExLjAtcmM1KyAjNwo+ IFs2NjI4NS43MTY5MzVdIEhhcmR3YXJlIG5hbWU6IEdJR0FCWVRFIEdCLUJYQlQtMTkwMC9NWkJB WUFCLTAwLCBCSU9TIEY4IDAzLzAyLzIwMTYKPiBbNjYyODUuNzE2OTQxXSBDYWxsIFRyYWNlOgo+ IFs2NjI4NS43MTY5NTVdICBkdW1wX3N0YWNrKzB4NGQvMHg2Zgo+IFs2NjI4NS43MTY5NjZdICBf X3dhcm4rMHhjMS8weGUwCj4gWzY2Mjg1LjcxNjk3NV0gIHdhcm5fc2xvd3BhdGhfbnVsbCsweDE4 LzB4MjAKPiBbNjYyODUuNzE3MDA0XSAgY3J0Y19jcmNfb3BlbisweDFkMC8weDFmMCBbZHJtXQo+ IFs2NjI4NS43MTcwMTRdICA/IHdha2VfYXRvbWljX3RfZnVuY3Rpb24rMHg1MC8weDUwCj4gWzY2 Mjg1LjcxNzAyNF0gIGZ1bGxfcHJveHlfb3BlbisweGYwLzB4MWIwCj4gWzY2Mjg1LjcxNzAzMl0g ID8gZnVsbF9wcm94eV9yZWxlYXNlKzB4ODAvMHg4MAo+IFs2NjI4NS43MTcwNDJdICBkb19kZW50 cnlfb3Blbi5pc3JhLjE3KzB4MTRiLzB4MmQwCj4gWzY2Mjg1LjcxNzA1MV0gIHZmc19vcGVuKzB4 NDIvMHg2MAo+IFs2NjI4NS43MTcwNjRdICBwYXRoX29wZW5hdCsweDVlNy8weDEzZDAKPiBbNjYy ODUuNzE3MDc0XSAgPyByZWZjb3VudF9kZWNfYW5kX3Rlc3QrMHgxMS8weDIwCj4gWzY2Mjg1Ljcx NzA4MV0gID8gZG93bl9yZWFkKzB4ZC8weDMwCj4gWzY2Mjg1LjcxNzA4N10gIGRvX2ZpbHBfb3Bl bisweDg1LzB4ZjAKPiBbNjYyODUuNzE3MDkzXSAgPyBfX3Zmc193cml0ZSsweDIzLzB4MTIwCj4g WzY2Mjg1LjcxNzEwMF0gID8gX19hbGxvY19mZCsweDNhLzB4MTcwCj4gWzY2Mjg1LjcxNzEwN10g IGRvX3N5c19vcGVuKzB4MTFlLzB4MWYwCj4gWzY2Mjg1LjcxNzExM10gID8gZG9fc3lzX29wZW4r MHgxMWUvMHgxZjAKPiBbNjYyODUuNzE3MTE5XSAgU3lTX29wZW5hdCsweGYvMHgyMAo+IFs2NjI4 NS43MTcxMjVdICBlbnRyeV9TWVNDQUxMXzY0X2Zhc3RwYXRoKzB4MTcvMHg5OAo+IFs2NjI4NS43 MTcxMzFdIFJJUDogMDAzMzoweDdmNWYyMjM1MTQ2YQo+IFs2NjI4NS43MTcxMzVdIFJTUDogMDAy YjowMDAwN2ZmZDg5MmU2YmMwIEVGTEFHUzogMDAwMDAyNDYgT1JJR19SQVg6IDAwMDAwMDAwMDAw MDAxMDEKPiBbNjYyODUuNzE3MTQyXSBSQVg6IGZmZmZmZmZmZmZmZmZmZGEgUkJYOiAwMDAwMDAw MDAwMDAwMDAwIFJDWDogMDAwMDdmNWYyMjM1MTQ2YQo+IFs2NjI4NS43MTcxNDddIFJEWDogMDAw MDAwMDAwMDAwMDAwMCBSU0k6IDAwMDA3ZmZkODkyZTZjNDAgUkRJOiAwMDAwMDAwMDAwMDAwMDA2 Cj4gWzY2Mjg1LjcxNzE1MV0gUkJQOiAwMDAwN2ZmZDg5MmU2YjIwIFIwODogMDAwMDAwMDAwMDAw MDAwMCBSMDk6IDAwMDAwMDAwMDAwMDAwMGYKPiBbNjYyODUuNzE3MTU2XSBSMTA6IDAwMDAwMDAw MDAwMDAwMDAgUjExOiAwMDAwMDAwMDAwMDAwMjQ2IFIxMjogMDAwMDAwMDAwMDAwMDAwMQo+IFs2 NjI4NS43MTcxNjFdIFIxMzogMDAwMDdmZmQ4OTJlNmIxMCBSMTQ6IDAwMDAwMDAwMDAwMDAwMDQg UjE1OiAwMDAwMDAwMDAwN2U2MWY0Cj4gCj4gQnVnemlsbGE6IGh0dHBzOi8vYnVncy5mcmVlZGVz a3RvcC5vcmcvc2hvd19idWcuY2dpP2lkPTEwMDYxMAo+IEZpeGVzOiBlOGZhNTY3MTE4M2MgKCJk cm06IGNyYzogV2FpdCBmb3IgYSBmcmFtZSBiZWZvcmUgcmV0dXJuaW5nIGZyb20gb3BlbigpIikK PiBTaWduZWQtb2ZmLWJ5OiBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4K PiBDYzogVG9tZXUgVml6b3NvIDx0b21ldS52aXpvc29AY29sbGFib3JhLmNvbT4KPiBDYzogRGFu aWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4KClJldmlld2VkLWJ5OiBUb21ldSBW aXpvc28gPHRvbWV1LnZpem9zb0Bjb2xsYWJvcmEuY29tPgoKU291bmRzIGdvb2QgdG8gbWUsIHRo ZXJlIGlzbid0IGFueSBnb29kIHJlYXNvbiBmb3IgdGhlIHdhaXQgdG8gYmUKaW50ZXJydXB0aWJs ZS4KClRoYW5rcywKClRvbWV1Cgo+IC0tLQo+ICBkcml2ZXJzL2dwdS9kcm0vZHJtX2RlYnVnZnNf Y3JjLmMgfCA2ICstLS0tLQo+ICAxIGZpbGUgY2hhbmdlZCwgMSBpbnNlcnRpb24oKyksIDUgZGVs ZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fZGVidWdmc19j cmMuYyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZGVidWdmc19jcmMuYwo+IGluZGV4IDE3MjJkOGYy MTQ0OS4uYWExM2U3MzRjOWU1IDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fZGVi dWdmc19jcmMuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZGVidWdmc19jcmMuYwo+IEBA IC0xNzcsMTMgKzE3Nyw5IEBAIHN0YXRpYyBpbnQgY3J0Y19jcmNfb3BlbihzdHJ1Y3QgaW5vZGUg Kmlub2RlLCBzdHJ1Y3QgZmlsZSAqZmlsZXApCj4gIAkgKiBndWVzcyB3aGVuIHRoaXMgcGFydGlj dWxhciBwaWVjZSBvZiBIVyB3aWxsIGJlIHJlYWR5IHRvIHN0YXJ0Cj4gIAkgKiBnZW5lcmF0aW5n IENSQ3MuCj4gIAkgKi8KPiAtCXJldCA9IHdhaXRfZXZlbnRfaW50ZXJydXB0aWJsZV9sb2NrX2ly cShjcmMtPndxLAo+IC0JCQkJCQljcnRjX2NyY19kYXRhX2NvdW50KGNyYyksCj4gLQkJCQkJCWNy Yy0+bG9jayk7Cj4gKwl3YWl0X2V2ZW50X2xvY2tfaXJxKGNyYy0+d3EsIGNydGNfY3JjX2RhdGFf Y291bnQoY3JjKSwgY3JjLT5sb2NrKTsKPiAgCXNwaW5fdW5sb2NrX2lycSgmY3JjLT5sb2NrKTsK PiAgCj4gLQlXQVJOX09OKHJldCk7Cj4gLQo+ICAJcmV0dXJuIDA7Cj4gIAo+ICBlcnJfZGlzYWJs ZToKPiAKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRy aS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRw czovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=