From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH 1/2] drm/i915: Wrap the protected active RCU dereference in a helper Date: Tue, 9 Aug 2016 08:36:56 +0200 Message-ID: <20160809063655.GJ6232@phenom.ffwll.local> References: <1470641328-18252-1-git-send-email-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wm0-x244.google.com (mail-wm0-x244.google.com [IPv6:2a00:1450:400c:c09::244]) by gabe.freedesktop.org (Postfix) with ESMTPS id 680836E200 for ; Tue, 9 Aug 2016 06:37:01 +0000 (UTC) Received: by mail-wm0-x244.google.com with SMTP id q128so1163525wma.1 for ; Mon, 08 Aug 2016 23:37:01 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1470641328-18252-1-git-send-email-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCBBdWcgMDgsIDIwMTYgYXQgMDg6Mjg6NDdBTSArMDEwMCwgQ2hyaXMgV2lsc29uIHdy b3RlOgo+IEFzIHdlIGRvIHRoZSBsb2NrZGVwIHByb3RlY3RlZCBSQ1UgbG9va3VwIGluIGEgY291 cGxlIG9mIHBsYWNlcywKPiByZWZhY3RvciB0aGF0IGNvZGUgdG8gYSBjb21tb24gaGVscGVyIGk5 MTVfZ2VtX2FjdGl2ZV9yYXcoKS4uCj4gCj4gU2lnbmVkLW9mZi1ieTogQ2hyaXMgV2lsc29uIDxj aHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5 MTVfZ2VtX3JlcXVlc3QuaCB8IDIxICsrKysrKysrKysrKysrKysrLS0tLQo+ICAxIGZpbGUgY2hh bmdlZCwgMTcgaW5zZXJ0aW9ucygrKSwgNCBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fcmVxdWVzdC5oIGIvZHJpdmVycy9ncHUvZHJt L2k5MTUvaTkxNV9nZW1fcmVxdWVzdC5oCj4gaW5kZXggMzQ5NmUyODc4NWU3Li42ZGQwMWNiZjQ4 OTUgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fcmVxdWVzdC5o Cj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fcmVxdWVzdC5oCj4gQEAgLTM2 MCw2ICszNjAsMjEgQEAgX19pOTE1X2dlbV9hY3RpdmVfcGVlayhjb25zdCBzdHJ1Y3QgaTkxNV9n ZW1fYWN0aXZlICphY3RpdmUpCj4gIH0KPiAgCj4gIC8qKgo+ICsgKiBpOTE1X2dlbV9hY3RpdmVf cmF3IC0gcmV0dXJuIHRoZSBhY3RpdmUgcmVxdWVzdAo+ICsgKiBAYWN0aXZlIC0gdGhlIGFjdGl2 ZSB0cmFja2VyCj4gKyAqCj4gKyAqIGk5MTVfZ2VtX2FjdGl2ZV9yYXcoKSByZXR1cm5zIHRoZSBj dXJyZW50IHJlcXVlc3QgYmVpbmcgdHJhY2tlZCwgb3IgTlVMTC4KPiArICogSXQgZG9lcyBub3Qg b2J0YWluIGEgcmVmZXJlbmNlIG9uIHRoZSByZXF1ZXN0IGZvciB0aGUgY2FsbGVyLCBzbyB0aGUg Y2FsbGVyCj4gKyAqIG11c3QgaG9sZCBzdHJ1Y3RfbXV0ZXguCj4gKyAqLwo+ICtzdGF0aWMgaW5s aW5lIHN0cnVjdCBkcm1faTkxNV9nZW1fcmVxdWVzdCAqCj4gK2k5MTVfZ2VtX2FjdGl2ZV9yYXco Y29uc3Qgc3RydWN0IGk5MTVfZ2VtX2FjdGl2ZSAqYWN0aXZlLCBzdHJ1Y3QgbXV0ZXggKm11dGV4 KQoKVGhlcmUncyBhIHJjdV9kZXJlZmVyZW5jZV9yYXcgaGVscGVyIHdoaWNoIGRvZXNuJ3QgYm90 aGVyIHdpdGggYW55IGxvY2tkZXAKY2hlY2tpbmcuIEEgYml0IGNvbmZ1c2luZyBuYW1pbmcsIG90 b2ggSSBjb3VsZG4ndCBjb21lIHVwIHdpdGggc29tZXRoaW5nCmJldHRlci4KClJldmlld2VkLWJ5 OiBEYW5pZWwgVmV0dGVyIDxkYW5pZWwudmV0dGVyQGZmd2xsLmNoPgoKPiArewo+ICsJcmV0dXJu IHJjdV9kZXJlZmVyZW5jZV9wcm90ZWN0ZWQoYWN0aXZlLT5yZXF1ZXN0LAo+ICsJCQkJCSBsb2Nr ZGVwX2lzX2hlbGQobXV0ZXgpKTsKPiArfQo+ICsKPiArLyoqCj4gICAqIGk5MTVfZ2VtX2FjdGl2 ZV9wZWVrIC0gcmVwb3J0IHRoZSBhY3RpdmUgcmVxdWVzdCBiZWluZyBtb25pdG9yZWQKPiAgICog QGFjdGl2ZSAtIHRoZSBhY3RpdmUgdHJhY2tlcgo+ICAgKgo+IEBAIC0zNzIsOCArMzg3LDcgQEAg aTkxNV9nZW1fYWN0aXZlX3BlZWsoY29uc3Qgc3RydWN0IGk5MTVfZ2VtX2FjdGl2ZSAqYWN0aXZl LCBzdHJ1Y3QgbXV0ZXggKm11dGV4KQo+ICB7Cj4gIAlzdHJ1Y3QgZHJtX2k5MTVfZ2VtX3JlcXVl c3QgKnJlcXVlc3Q7Cj4gIAo+IC0JcmVxdWVzdCA9IHJjdV9kZXJlZmVyZW5jZV9wcm90ZWN0ZWQo YWN0aXZlLT5yZXF1ZXN0LAo+IC0JCQkJCSAgICBsb2NrZGVwX2lzX2hlbGQobXV0ZXgpKTsKPiAr CXJlcXVlc3QgPSBpOTE1X2dlbV9hY3RpdmVfcmF3KGFjdGl2ZSwgbXV0ZXgpOwo+ICAJaWYgKCFy ZXF1ZXN0IHx8IGk5MTVfZ2VtX3JlcXVlc3RfY29tcGxldGVkKHJlcXVlc3QpKQo+ICAJCXJldHVy biBOVUxMOwo+ICAKPiBAQCAtNjM1LDggKzY0OSw3IEBAIGk5MTVfZ2VtX2FjdGl2ZV9yZXRpcmUo c3RydWN0IGk5MTVfZ2VtX2FjdGl2ZSAqYWN0aXZlLAo+ICAJc3RydWN0IGRybV9pOTE1X2dlbV9y ZXF1ZXN0ICpyZXF1ZXN0Owo+ICAJaW50IHJldDsKPiAgCj4gLQlyZXF1ZXN0ID0gcmN1X2RlcmVm ZXJlbmNlX3Byb3RlY3RlZChhY3RpdmUtPnJlcXVlc3QsCj4gLQkJCQkJICAgIGxvY2tkZXBfaXNf aGVsZChtdXRleCkpOwo+ICsJcmVxdWVzdCA9IGk5MTVfZ2VtX2FjdGl2ZV9yYXcoYWN0aXZlLCBt dXRleCk7Cj4gIAlpZiAoIXJlcXVlc3QpCj4gIAkJcmV0dXJuIDA7Cj4gIAo+IC0tIAo+IDIuOC4x Cj4gCj4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KPiBJ bnRlbC1nZnggbWFpbGluZyBsaXN0Cj4gSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwo+ IGh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4 CgotLSAKRGFuaWVsIFZldHRlcgpTb2Z0d2FyZSBFbmdpbmVlciwgSW50ZWwgQ29ycG9yYXRpb24K aHR0cDovL2Jsb2cuZmZ3bGwuY2gKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRl c2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8v aW50ZWwtZ2Z4Cg==