From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id p5GHETlO047862 for ; Thu, 16 Jun 2011 12:14:29 -0500 Subject: Re: [PATCH] [RFC] xfs: introduce an allocation workqueue From: Alex Elder In-Reply-To: <20110415014928.GM21395@dastard> References: <1302616337-29894-1-git-send-email-david@fromorbit.com> <1302809374.2608.73.camel@doink> <20110415014928.GM21395@dastard> Date: Thu, 16 Jun 2011 12:14:24 -0500 Message-ID: <1308244464.2717.13.camel@doink> MIME-Version: 1.0 Reply-To: aelder@sgi.com 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: "xfs@oss.sgi.com" T24gVGh1LCAyMDExLTA0LTE0IGF0IDIwOjQ5IC0wNTAwLCBEYXZlIENoaW5uZXIgd3JvdGU6Cj4g T24gVGh1LCBBcHIgMTQsIDIwMTEgYXQgMDI6Mjk6MzRQTSAtMDUwMCwgQWxleCBFbGRlciB3cm90 ZToKPiA+IE9uIFR1ZSwgMjAxMS0wNC0xMiBhdCAyMzo1MiArMTAwMCwgRGF2ZSBDaGlubmVyIHdy b3RlOgo+ID4gPiBGcm9tOiBEYXZlIENoaW5uZXIgPGRjaGlubmVyQHJlZGhhdC5jb20+Cj4gPiA+ IAo+ID4gPiBXZSBjdXJyZW50bHkgaGF2ZSBzaWduaWZpY2FudCBpc3N1ZXMgd2l0aCB0aGUgYW1v dW50IG9mIHN0YWNrIHRoYXQKPiA+ID4gYWxsb2NhdGlvbiBpbiBYRlMgdXNlcywgZXNwZWNpYWxs eSBpbiB0aGUgd3JpdGViYWNrIHBhdGguIFdlIGNhbgo+ID4gPiBlYXNpbHkgY29uc3VtZSA0ayBv ZiBzdGFjayBiZXR3ZWVuIG1hcHBpbmcgdGhlIHBhZ2UsIG1hbmlwdWxhdGluZwo+ID4gPiB0aGUg Ym1hcCBidHJlZSBhbmQgYWxsb2NhdGluZyBibG9ja3MgZnJvbSB0aGUgZnJlZSBsaXN0LiBOb3Qg dG8KPiA+ID4gbWVudGlvbiBidHJlZSBibG9jayByZWFkYWhlYWQgYW5kIG90aGVyIGZ1bmN0aW9u YWxpdHkgdGhhdCBpc3N1ZXMgSU8KPiA+ID4gaW4gdGhlIGFsbG9jYXRpb24gcGF0aC4KPiA+ID4g Cj4gPiA+IEFzIGEgcmVzdWx0LCB3ZSBjYW4gbm8gbG9uZ2VyIGZpdCBhbGxvY2F0aW9uIGluIHRo ZSB3cml0ZWJhY2sgcGF0aAo+ID4gPiBpbiB0aGUgc3RhY2sgc3BhY2UgcHJvdmlkZWQgb24geDg2 XzY0LiBUbyBhbGxldmlhdGUgdGhpcyBwcm9ibGVtLAo+ID4gPiBpbnRyb2R1Y2UgYW4gYWxsb2Nh dGlvbiB3b3JrcXVldWUgYW5kIG1vdmUgYWxsIGFsbG9jYXRpb25zIHRvIGEKPiA+ID4gc2VwZXJh dGUgY29udGV4dC4gVGhpcyBjYW4gYmUgZWFzaWx5IGFkZGVkIGFzIGFuIGludGVycG9zaW5nIGxh eWVyCj4gPiA+IGludG8geGZzX2FsbG9jX3ZleHRlbnQoKSwgd2hpY2ggdGFrZXMgYSBzaW5nbGUg YXJndW1lbnQgc3RydWN0dXJlCj4gPiA+IGFuZCBkb2VzIG5vdCByZXR1cm4gdW50aWwgdGhlIGFs bG9jYXRpb24gaXMgY29tcGxldGUgb3IgaGFzIGZhaWxlZC4KPiA+ID4gCj4gPiA+IFRvIGRvIHRo aXMsIGFkZCBhIHdvcmsgc3RydWN0dXJlIGFuZCBhIGNvbXBsZXRpb24gdG8gdGhlIGFsbG9jYXRp b24KPiA+ID4gYXJncyBzdHJ1Y3R1cmUuIFRoaXMgYWxsb3dzIHhmc19hbGxvY192ZXh0ZW50IHRv IHF1ZXVlIHRoZSBhcmdzIG9udG8KPiA+ID4gdGhlIHdvcmtxdWV1ZSBhbmQgd2FpdCBmb3IgaXQg dG8gYmUgY29tcGxldGVkIGJ5IHRoZSB3b3JrZXIuIFRoaXMKPiA+ID4gY2FuIGJlIGRvbmUgY29t cGxldGVseSB0cmFuc3BhcmVudGx5IHRvIHRoZSBjYWxsZXIuCj4gPiA+IAo+ID4gPiBUaGUgd29y a2VyIGZ1bmN0aW9uIG5lZWRzIHRvIGVuc3VyZSB0aGF0IGl0IHNldHMgYW5kIGNsZWFycyB0aGUK PiA+ID4gUEZfTUVNQUxMT0MgZmxhZyBhcHByb3ByaWF0ZWx5IGFzIGl0IGlzIGJlaW5nIHJ1biBp biBhbiBhY3RpdmUKPiA+ID4gdHJhbtGVYWN0aW9uIGNvbnRleHQuIFdvcmsgY2FuIGFsc28gYmUg cXVldWVkIGluIGEgbWVtb3J5IHJlY2xhaW0KPiA+ID4gY29udGV4dCwgc28gYSByZXNjdWVyIGlz IG5lZWRlZCBmb3IgdGhlIHdvcmtxdWV1ZS4KPiA+ID4gCj4gPiA+IFNpZ25lZC1vZmYtYnk6IERh dmUgQ2hpbm5lciA8ZGNoaW5uZXJAcmVkaGF0LmNvbT4KPiA+IAo+ID4gSW50ZXJlc3RpbmcuCj4g PiAKPiA+IEkgZ3Vlc3MgSSBkb24ndCBzZWUgYW55dGhpbmcgaW5oZXJlbnRseSB3cm9uZyB3aXRo IHRoaXMuCj4gPiBBdCBmaXJzdCBnbGFuY2UgaXQgc2VlbXMgbGlrZSB3b3JrcXVldWUgYWJ1c2Uu ICBCdXQgaXQncwo+ID4gYmV0dGVyIHRoYW4gcm9sbGluZyBvdXIgb3duIGRhZW1vbiB0byBkbyB0 aGUgc2FtZSB0aGluZy4KPiA+IChUaGVyZSdzIG5vdGhpbmcgdG8gc3RvcCB5b3UgZnJvbSBkb2lu ZyB0aGlzIGdlbmVyaWNhbGx5Cj4gPiBlaXRoZXIuLi4pCj4gPiAKPiA+IFdpbGwgaXQgc2hpZnQg c29tZSBhY2NvdW50aW5nIG9mIENQVSB0aW1lIGZyb20gdXNlciB0bwo+ID4gc3lzdGVtPwo+IAo+ IFNvbWUsIHllcy4gRm9yIGRlbGF5ZWQgYWxsb2NhdGlvbiBpbiB0aGUgYmFja2dyb3VuZCBmbHVz aCBvciBzeW5jCj4gcGF0aCwgdGhlcmUgaXMgbm8gZGlmZmVyZW5jZSBiZWNhdXNlIHRoYXQgaXNu J3QgYWNjb3VudGVkIHRvIHRoZQo+IHVzZXIgYW55d2F5LiBUaGUgb25seSBjYXNlcyBpdCB3aWxs IG1ha2UgYSBkaWZmZXJlbmNlIGFyZSBmb3IKPiBmb3JlZ3JvdW5kIHdyaXRlYmFjayAoZS5nLiBm c3luYyBvciB3cml0ZSB0aHJvdHRsaW5nKSwgYW5kIGZvciBpbm9kZQo+IGFuZCBkaXJlY3Rvcnkg YWxsb2NhdGlvbi4KCkxpbnVzIG1hZGUgYSBjb21tZW50IHJlbGV2YW50IHRvIHRoaXMgeWVzdGVy ZGF5LApidXQgaW4gcmVmZXJlbmNlIHRvIFJDVSBtYWtpbmcgdXNlIG9mIGtlcm5lbCB0aHJlYWRz OgoKICAgICAgICBSZTogUkVHUkVTU0lPTjogUGVyZm9ybWFuY2UgcmVncmVzc2lvbnMgZnJvbSBz d2l0Y2hpbmcKICAgICAgICBhbm9uX3ZtYS0+bG9jayB0byBtdXRleAogICAgICAgIAogICAgICAg IFNvIHVzaW5nIGFub255bW91cyBrZXJuZWwgdGhyZWFkcyBpcyBhY3R1YWxseSBhIHJlYWwgZG93 bnNpZGUuCiAgICAgICAgSXQgbWFrZXMgaXQgbXVjaCBsZXNzIG9idmlvdXMgd2hhdCBpcyBnb2lu ZyBvbi4gV2Ugc2F3IHRoYXQKICAgICAgICBleGFjdCBzYW1lIHRoaW5nIHdpdGggdGhlIGdlbmVy aWMgd29ya2VyIHRocmVhZCBjb252ZXJzaW9uczoKICAgICAgICB0aGluZ3MgdGhhdCB1c2VkIHRv IGhhdmUgY2xlYXIgcGVyZm9ybWFuY2UgaXNzdWVzICgib2gsIHRoZQogICAgICAgIGl3bC1waHkw IHRocmVhZCBpcyB1c2luZyAzJSBvZiBDUFUgdGltZSBiZWNhdXNlIGl0IGlzIHBvbGxpbmcKICAg ICAgICBmb3IgSU8sIGFuZCBJIGNhbiBzZWUgdGhhdCBpbiAndG9wJyIpIHR1cm5lZCBpbnRvCiAg ICAgICAgbXVjaC1oYXJkZXItdG8tc2VlIGlzc3VlcyAoIm9oLCBrd29yazAgdXMgdXNpbmcgMyUg Q1BVIHRpbWUKICAgICAgICBhY2NvcmRpbmcgdG8gJ3RvcCcgLSBJIGhhdmUgbm8gaWRlYSB3aHki KS4KCk1heWJlIGlmIHRoZXJlIHdlcmUgYSB3YXkgdG8gcmV1c2UgdGhlIGdlbmVyaWMKd29ya2Vy IGluZnJhc3RydWN0dXJlIGJ1dCBoYXZlIGl0IGFzc29jaWF0ZWQgd2l0aAphIGtlcm5lbCBtb2R1 bGUgb3Igc29tZXRoaW5nLiAgVGhlbiBhZ2FpbiB0aGF0IGlzCnNvcnQgb2YgY29udHJhcnkgdG8g dGhlIHB1cnBvc2Ugb2YgdGhlIGdlbmVyaWMKY2VudHJhbGx5LW1hbmFnZWQgcG9vbC4gIE1heWJl IGlmIGdlbmVyaWMgd29yawpjb3VsZCBzb21laG93IGdldCB0YWdnZWQgd2l0aCBpdHMgcmVhbCBv d25lcgpvciBvcmlnaW4gaXQgd291bGQgYmUgYmV0dGVyLCBidXQgSSByZWFsbHkgaGF2ZQpubyBp ZGVhIGhvdyBvbmUgd291bGQgZ28gYWJvdXQgdGhhdC4KCkluIGFueSBjYXNlLCBJIHRoaW5rIHdl IG5lZWQgdG8gYmUgY2F1dGlvdXMgYWJvdXQKbW92aW5nIGluIHRoaXMgZGlyZWN0aW9uLgoKCQkJ CQktQWxleAoKCj4gPiBUaGUgY29kZSBsb29rcyBPSyB0byBtZS4gVGhlIGlkZWEgb2YgaXQgbWFr ZXMgbWUgcGF1c2UKPiA+IGEgbGl0dGxlLCB0aG91Z2ggSSBkb24ndCBvYmplY3QuCj4gCj4gSXQn cyBkZWZpbml0ZWx5IGEgZGlmZmVyZW50IHdheSBvZiB0aGlua2luZywgYnV0IEknbSBzZXJpb3Vz bHkKPiBzdGFydGluZyB0byBjb25zaWRlciBwdXNoaW5nIG1vcmUgb3BlcmF0aW9ucyBpbnRvIGFz eWNocm9ub3VzCj4gYmFja2dyb3VuZCB0YXNrcyB0aGF0IHRoZSBjYWxsZXIgY2FuIHdhaXQgb24g aWYgdGhleSBzbyBkZXNpcmUuCj4gZS5nLiBFT0YgdHJ1bmNhdGlvbiBkdXJpbmcgeGZzX2luYWN0 aXZlIGFuZCB4ZnNfcmVsZWFzZSgpLCBmbHVzaGluZwo+IGEgcmFuZ2Ugb2YgYSBmaWxlLCBpbm9k ZSBjbHVzdGVyIGZyZWVpbmcsIENJTCBmbHVzaGVzLCBldGMuCj4gCj4gV2UndmUgZ290IG11bHRp cGxlIGNvcmVzIGluIG1vc3QgbWFjaGluZXMgdGhlc2UgZGF5cyAoZXZlbiB0aGUgbG93Cj4gZW5k IGlzIGdvaW5nIG11bHRpLWNvcmUpLCBjb250ZXh0IHN3aXRjaCBvdmVyaGVhZCBpcyBwcmV0dHkg bG93IGFuZAo+IHdlJ3ZlIGdvdCBjb25jdXJyZW5jeSBtYW5hZ2VkIHdvcmsgcXVldWVzIHNvIHdl IGRvbid0IG5lZWQgdGhyZWFkCj4gcG9vbHMgLSB3ZSBzaG91bGQgdGFrZSBhZHZhbnRhZ2Ugb2Yg d2hhdCB0aGV5IHByb3ZpZGUuLi4uCj4gCj4gQ2hlZXJzLAo+IAo+IERhdmUuCgoKCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCnhmcyBtYWlsaW5nIGxpc3QK eGZzQG9zcy5zZ2kuY29tCmh0dHA6Ly9vc3Muc2dpLmNvbS9tYWlsbWFuL2xpc3RpbmZvL3hmcwo=