From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o88EAJZZ038779 for ; Wed, 8 Sep 2010 09:10:19 -0500 Received: from hera.kernel.org (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E3B841E60785 for ; Wed, 8 Sep 2010 07:11:03 -0700 (PDT) Received: from hera.kernel.org (hera.kernel.org [140.211.167.34]) by cuda.sgi.com with ESMTP id S3QH2IrK0gNzKD2t for ; Wed, 08 Sep 2010 07:11:03 -0700 (PDT) Message-ID: <4C87996F.2040805@kernel.org> Date: Wed, 08 Sep 2010 16:10:55 +0200 From: Tejun Heo MIME-Version: 1.0 Subject: Re: [2.6.36-rc3] Workqueues, XFS, dependencies and deadlocks References: <20100907072954.GM705@dastard> <4C86003B.6090706@kernel.org> <20100907100108.GN705@dastard> <4C861582.6080102@kernel.org> <4C862F8E.7030507@kernel.org> <20100908082249.GT705@dastard> <4C874E90.5040405@kernel.org> <20100908100503.GX705@dastard> In-Reply-To: <20100908100503.GX705@dastard> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com SGVsbG8sCgpPbiAwOS8wOC8yMDEwIDEyOjA1IFBNLCBEYXZlIENoaW5uZXIgd3JvdGU6Cj4+ICog RG8geW91IHRoaW5rIEBtYXhfYWN0aXZlID4gMSBjb3VsZCBiZSB1c2VmdWwgZm9yIHhmcz8gIElm IG1vc3Qgd29ya3MKPj4gICBxdWV1ZWQgb24gdGhlIHdxIGFyZSBnb25uYSBjb250ZW5kIGZvciB0 aGUgc2FtZSAoYmxvY2tpbmcpIHNldCBvZgo+PiAgIHJlc291cmNlcywgaXQgd291bGQganVzdCBt YWtlIG1vcmUgdGhyZWFkcyBzbGVlcGluZyBvbiB0aG9zZQo+PiAgIHJlc291cmNlcyBidXQgb3Ro ZXJ3aXNlIGl0IHdvdWxkIGhlbHAgcmVkdWNpbmcgZXhlY3V0aW9uIGxhdGVuY3kgYQo+PiAgIGxv dC4KPiAKPiBJdCBtYXkgaW5kZWVkIGhlbHAsIGJ1dCBJIGNhbid0IHJlYWxseSBzYXkgbXVjaCBt b3JlIHRoYW4gdGhhdCByaWdodAo+IG5vdy4gSSBuZWVkIGEgZGVlcGVyIHVuZGVyc3RhbmRpbmcg b2YgdGhlIGltcGFjdCBvZiBpbmNyZWFzaW5nCj4gbWF4X2FjdGl2ZSAoSSBoYXZlIGEgYmFzaWMg dW5kZXJzdGFuZGluZyBub3cpIGJlZm9yZSBJIGNvdWxkIHNheSBmb3IKPiBjZXJ0YWluLgoKU3Vy ZSwgdGhpbmdzIHNob3VsZCBiZSBmaW5lIGFzIHRoZXkgY3VycmVudGx5IHN0YW5kLiAgTm8gbmVl ZCB0byBodXJyeQphbnl0aGluZy4KCj4+ICogeGZzX21ydV9jYWNoZSBpcyBhIHNpbmdsZXRocmVh ZCB3b3JrcXVldWUuICBEbyB5b3Ugc3BlY2lmaWNhbGx5IG5lZWQKPj4gICBzaW5nbGV0aHJlYWRl ZG5lc3MgKHN0cmljdCBvcmRlcmluZyBvZiB3b3Jrcykgb3IgaXMgaXQganVzdCB0byBhdm9pZAo+ PiAgIGNyZWF0aW5nIGRlZGljYXRlZCBwZXItY3B1IHdvcmtlcnM/ICBJZiB0aGUgbGF0dGVyLCB0 aGVyZSdzIG5vIG5lZWQKPj4gICB0byB1c2Ugc2luZ2xldGhyZWFkIG9uZSBhbnltb3JlLgo+IAo+ IERpZG4ndCBuZWVkIHBlci1jcHUgd29ya2Vycywgc28gY291bGQgcHJvYmFibHkgZHJvcCBpdCBu b3cuCgpJIHNlZS4gIEknbGwgc29vbiBzZW5kIG91dCBhIHBhdGNoIHRvIGNvbnZlcnQgeGZzIHRv IHVzZQphbGxvY193b3JrcXVldWUoKSBpbnN0ZWFkIGFuZCB3aWxsIGRyb3Agc2luZ2xldGhyZWFk IHJlc3RyaWN0aW9uCnRoZXJlLgoKPj4gICBNYXliZSBzb21lIG9mIHRob3NlIHdvcmtxdWV1ZXMg Y2FuIGRyb3AgV1FfUkVTQ1VFUiBvciBtZXJnZWQgb3IganVzdAo+PiAgIHVzZSB0aGUgc3lzdGVt IHdvcmtxdWV1ZT8KPiAKPiBNYXliZSB0aGUgbXJ1IHdxIGNhbiB1c2UgdGhlIHN5c3RlbSB3cSwg YnV0IEknbSByZWFsbHkgb3Bwb3NlZCB0bwo+IG1lcmdpbmcgWEZTIHdxcyB3aXRoIHN5c3RlbSB3 b3JrIHF1ZXVlcyBzaW1wbHkgZnJvbSBhIGRlYnVnZ2luZyBQT1YuCj4gSSd2ZSBsb3N0IGNvdW50 IG9mIHRoZSBudW1iZXIgb2YgdGltZXMgSSd2ZSB3YWxrZWQgdGhlIElPIGNvbXBsZXRpb24KPiBx dWV1ZdGVIHdpdGggYSBkZWJ1Z2dlciBvciBjcmFzaCBkdW1wIGFuYWx5c2VyIHRvIHRyeSB0byB3 b3JrIG91dCBpZgo+IG1pc3NpbmcgSU8gdGhhdCB3ZWRnZWQgdGhlIGZpbGVzeXN0ZW0gZ290IHN0 dWNrIG9uIHRoZSBjb21wbGV0aW9uCj4gcXVldWUuIElmIEkgd2FudCB0byBiZSBhYmxlIHRvIHNh eSAidGhlIElPIHdhcyBsb3N0IGJ5IGEgbG93ZXIKPiBsYXllciIsIHRoZW4gSSBoYXZlIHRvIGJl IGFibGUgdG8gY29uZmlybSBpdCBpcyBub3Qgc3R1Y2sgaW4gYQo+IGNvbXBsZXRpb24gcXVldWUu IFRoYXQgbXVjaCBoYXJkZXIgaWYgSSBkb24ndCBrbm93IHdoYXQgdGhlIHdvcmsKPiBjb250YWlu ZXIgb2JqZWN0cyBvbiB0aGUgcXVldWUgYXJlLi4uLgoKSG1tLi4uIHRoYXQncyBnb25uYSBiZSBh IGJpdCBtb3JlIGRpZmZpY3VsdCB3aXRoIGNtd3EgYXMgYWxsIHRoZSB3b3JrcwphcmUgbm93IHF1 ZXVlZCBvbiB0aGUgc2hhcmVkIHdvcmtsaXN0IGJ1dCB5b3Ugc2hvdWxkIHN0aWxsIGJlIGFibGUg dG8KdGVsbC4gIE1heWJlIGNyYXNoIGNhbiBiZSB0YXVnaHQgaG93IHRvIHRlbGwgdGhlIGFzc29j aWF0ZWQgd29ya3F1ZXVlCmZyb20gYSBwZW5kaW5nIHdvcmsuCgpUaGFua3MuCgotLSAKdGVqdW4K Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCnhmcyBtYWls aW5nIGxpc3QKeGZzQG9zcy5zZ2kuY29tCmh0dHA6Ly9vc3Muc2dpLmNvbS9tYWlsbWFuL2xpc3Rp bmZvL3hmcwo=