From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Fedyk Subject: Re: [PATCH 04/10] btrfs: Add error check for add_to_page_cache_lru Date: Thu, 20 May 2010 01:43:11 -0700 Message-ID: References: <4BF4E23D.6080405@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Cc: Chris Mason , Linux Btrfs To: miaox@cn.fujitsu.com Return-path: In-Reply-To: <4BF4E23D.6080405@cn.fujitsu.com> List-ID: T24gVGh1LCBNYXkgMjAsIDIwMTAgYXQgMTI6MTggQU0sIE1pYW8gWGllIDxtaWFveEBjbi5mdWpp dHN1LmNvbT4gd3JvdGU6Cj4gRnJvbTogTGl1IEJvIDxsaXVibzIwMDlAY24uZnVqaXRzdS5jb20+ Cj4KPiBJZiBhZGRfdG9fcGFnZV9jYWNoZV9scnUoKSByZXR1cm5zIC1FRVhJU1QsIGl0IGluZGlj YXRlcyB0aGUgcGFnZQo+IHRoYXQgYmVsb25ncyB0byB0aGlzIHBhZ2VfaW5kZXggaGFzIGJlZW4g YWRkZWQgYW5kIHRoaXMgcmVhZGFoZWFkCj4gYWN0aW9uIGNhbiBnbyBvbiB0byBuZXh0IHBhZ2Uu Cj4KPiBJZiBhZGRfdG9fcGFnZV9jYWNoZV9scnUoKSByZXR1cm5zIC1FTk9NRU0sIGl0IHNob3Vs ZCBicmVhayBmb3IKPiBubyBtZW1vcnkgbGVmdC4KPgo+IFNpZ25lZC1vZmYtYnk6IExpdSBCbyA8 bGl1Ym8yMDA5QGNuLmZ1aml0c3UuY29tPgo+IFNpZ25lZC1vZmYtYnk6IE1pYW8gWGllIDxtaWFv eEBjbi5mdWppdHN1LmNvbT4KPiAtLS0KPiDCoGZzL2J0cmZzL2NvbXByZXNzaW9uLmMgfCDCoCAx OSArKysrKysrKysrKysrKysrLS0tCj4gwqAxIGZpbGVzIGNoYW5nZWQsIDE2IGluc2VydGlvbnMo KyksIDMgZGVsZXRpb25zKC0pCj4KPiBkaWZmIC0tZ2l0IGEvZnMvYnRyZnMvY29tcHJlc3Npb24u YyBiL2ZzL2J0cmZzL2NvbXByZXNzaW9uLmMKPiBpbmRleCAxZDU0YzUzLi4xYmQ0ZDkyIDEwMDY0 NAo+IC0tLSBhL2ZzL2J0cmZzL2NvbXByZXNzaW9uLmMKPiArKysgYi9mcy9idHJmcy9jb21wcmVz c2lvbi5jCj4gQEAgLTQ4MCwxMCArNDgwLDIzIEBAIHN0YXRpYyBub2lubGluZSBpbnQgYWRkX3Jh X2Jpb19wYWdlcyhzdHJ1Y3QgaW5vZGUgKmlub2RlLAo+IMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKg aWYgKCFwYWdlKQo+IMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgYnJlYWs7Cj4K PiAtIMKgIMKgIMKgIMKgIMKgIMKgIMKgIGlmIChhZGRfdG9fcGFnZV9jYWNoZV9scnUocGFnZSwg bWFwcGluZywgcGFnZV9pbmRleCwKPiAtIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKg IMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKg IMKgIEdGUF9OT0ZTKSkgewo+ICsgwqAgwqAgwqAgwqAgwqAgwqAgwqAgcmV0ID0gYWRkX3RvX3Bh Z2VfY2FjaGVfbHJ1KHBhZ2UsIG1hcHBpbmcsIHBhZ2VfaW5kZXgsCj4gKyDCoCDCoCDCoCDCoCDC oCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDC oCDCoCDCoCDCoCDCoCDCoCDCoCDCoCBHRlBfTk9GUyk7Cj4gKyDCoCDCoCDCoCDCoCDCoCDCoCDC oCBpZiAocmV0KSB7Cj4gwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqBwYWdlX2Nh Y2hlX3JlbGVhc2UocGFnZSk7Cj4gLSDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCBn b3RvIG5leHQ7Cj4gKwo+ICsgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgLyoKPiAr IMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgKiAtRUVYSVNUIGluZGljYXRlcyB0 aGUgcGFnZSBoYXMgYmVlbiBhZGRlZCwgc28KPiArIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKg IMKgIMKgIMKgKiBpdCBjYW4gbW92ZSBvbiB0byBuZXh0IHBhZ2UuCj4gKyDCoCDCoCDCoCDCoCDC oCDCoCDCoCDCoCDCoCDCoCDCoCDCoCovCj4gKyDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDC oCDCoCBpZiAocmV0ID09IC1FRVhJU1QpIHsKPiArIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKgIMKg IMKgIMKgIMKgIMKgIMKgIMKgIG1pc3NlcysrOwo+ICsgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAg wqAgwqAgwqAgwqAgwqAgwqAgwqAgaWYgKG1pc3NlcyA+IDQpCj4gKyDCoCDCoCDCoCDCoCDCoCDC oCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCBicmVhazsKClNob3VsZG4n dCB0aGlzIHVzZSBhIHByZS1wcm9jZXNzb3IgbGFiZWwgaW5zdGVhZCBvZiBoYXJkIGNvZGluZwpj b21wcmVzc2lvbiBzZW5zaXRpdml0eSBvciByZWFkYWhlYWQgdHVuaW5nPyAgdGhpcyB3YXkgaXQn bGwgYmUgc2V0IGluCm9uZSBwbGFjZS4KCj4gKyDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDC oCDCoCDCoCDCoCDCoCDCoCBnb3RvIG5leHQ7Cj4gKyDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoCDC oCDCoCDCoCB9Cj4gKwo+ICsgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqAgYnJlYWs7 Cj4gwqAgwqAgwqAgwqAgwqAgwqAgwqAgwqB9Cj4KPiDCoCDCoCDCoCDCoCDCoCDCoCDCoCDCoGVu ZCA9IGxhc3Rfb2Zmc2V0ICsgUEFHRV9DQUNIRV9TSVpFIC0gMTsKPiAtLQo+IDEuNi41LjIKPgo+ IC0tCj4gVG8gdW5zdWJzY3JpYmUgZnJvbSB0aGlzIGxpc3Q6IHNlbmQgdGhlIGxpbmUgInVuc3Vi c2NyaWJlIGxpbnV4LWJ0cmZzIiBpbgo+IHRoZSBib2R5IG9mIGEgbWVzc2FnZSB0byBtYWpvcmRv bW9Admdlci5rZXJuZWwub3JnCj4gTW9yZSBtYWpvcmRvbW8gaW5mbyBhdCDCoGh0dHA6Ly92Z2Vy Lmtlcm5lbC5vcmcvbWFqb3Jkb21vLWluZm8uaHRtbAo+Cg==