From mboxrd@z Thu Jan 1 00:00:00 1970 From: Changman Lee Subject: Re: [PATCH] f2fs: merge read IOs at ra_nat_pages() Date: Fri, 22 Nov 2013 12:41:19 +0900 Message-ID: <1385091679.16054.5.camel@lcm> References: <1385026550-21055-1-git-send-email-jaegeuk.kim@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net To: Jaegeuk Kim Return-path: In-reply-to: <1385026550-21055-1-git-send-email-jaegeuk.kim@samsung.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net List-Id: linux-fsdevel.vger.kernel.org CkhvdyBhYm91dCBkb2luZyBtYXJrX3BhZ2VfYWNjZXNzZWQocGFnZSkgaW4gcmFfbmF0X3BhZ2Vz IGxpa2UKcmFfc2l0X3BhZ2VzIHRvIHByZXZlbnQgcmVhZGFoZWFkIHBhZ2VzIGFyZSByZWNsYWlt ZWQgYnkgVk0/CgpPbiDrqqksIDIwMTMtMTEtMjEgYXQgMTg6MzUgKzA5MDAsIEphZWdldWsgS2lt IHdyb3RlOgo+IFRoaXMgcGF0Y2ggY2hhbmdlcyB0aGUgcG9saWN5IG9mIHN1Ym1pdHRpbmcgcmVh ZCBiaW9zIGF0IHJhX25hdF9wYWdlcy4KPiAKPiBQcmV2aW91c2x5LCBmMmZzIHN1Ym1pdHMgc21h bGwgcmVhZCBiaW9zIHdpdGggYmxvY2sgcGx1Z2dpbmcuCj4gQnV0LCB3aXRoIHRoaXMgcGF0Y2gs IGYyZnMgaXRzZWxmIG1lcmdlcyByZWFkIGJpb3MgZmlyc3QgYW5kIHRoZW4gc3VibWl0cyBhCj4g bGFyZ2UgYmlvLCB3aGljaCBjYW4gcmVkdWNlIHRoZSBiaW8gaGFuZGxpbmcgb3ZlcmhlYWRzLgo+ IAo+IFNpZ25lZC1vZmYtYnk6IEphZWdldWsgS2ltIDxqYWVnZXVrLmtpbUBzYW1zdW5nLmNvbT4K PiAtLS0KPiAgZnMvZjJmcy9ub2RlLmMgfCA4ICsrLS0tLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCAy IGluc2VydGlvbnMoKyksIDYgZGVsZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2ZzL2YyZnMv bm9kZS5jIGIvZnMvZjJmcy9ub2RlLmMKPiBpbmRleCBiODQzYTViLi5jMDY4NzFmIDEwMDY0NAo+ IC0tLSBhL2ZzL2YyZnMvbm9kZS5jCj4gKysrIGIvZnMvZjJmcy9ub2RlLmMKPiBAQCAtODksMTMg Kzg5LDEwIEBAIHN0YXRpYyB2b2lkIHJhX25hdF9wYWdlcyhzdHJ1Y3QgZjJmc19zYl9pbmZvICpz YmksIGludCBuaWQpCj4gIHsKPiAgCXN0cnVjdCBhZGRyZXNzX3NwYWNlICptYXBwaW5nID0gc2Jp LT5tZXRhX2lub2RlLT5pX21hcHBpbmc7Cj4gIAlzdHJ1Y3QgZjJmc19ubV9pbmZvICpubV9pID0g Tk1fSShzYmkpOwo+IC0Jc3RydWN0IGJsa19wbHVnIHBsdWc7Cj4gIAlzdHJ1Y3QgcGFnZSAqcGFn ZTsKPiAgCXBnb2ZmX3QgaW5kZXg7Cj4gIAlpbnQgaTsKPiAgCj4gLQlibGtfc3RhcnRfcGx1Zygm cGx1Zyk7Cj4gLQo+ICAJZm9yIChpID0gMDsgaSA8IEZSRUVfTklEX1BBR0VTOyBpKyssIG5pZCAr PSBOQVRfRU5UUllfUEVSX0JMT0NLKSB7Cj4gIAkJaWYgKG5pZCA+PSBubV9pLT5tYXhfbmlkKQo+ ICAJCQluaWQgPSAwOwo+IEBAIC0xMDgsMTIgKzEwNSwxMSBAQCBzdGF0aWMgdm9pZCByYV9uYXRf cGFnZXMoc3RydWN0IGYyZnNfc2JfaW5mbyAqc2JpLCBpbnQgbmlkKQoKbWFya19wYWdlX2FjY2Vz c2VkKHBhZ2UpOwoKPiAgCQkJZjJmc19wdXRfcGFnZShwYWdlLCAxKTsKPiAgCQkJY29udGludWU7 Cj4gIAkJfQo+IC0JCWlmIChmMmZzX3JlYWRwYWdlKHNiaSwgcGFnZSwgaW5kZXgsIFJFQUQpKQo+ IC0JCQljb250aW51ZTsKPiArCQlzdWJtaXRfcmVhZF9wYWdlKHNiaSwgcGFnZSwgaW5kZXgsIFJF QURfU1lOQyk7Cj4gIAoKbWFya19wYWdlX2FjY2Vzc2VkKHBhZ2UpOwoKPiAgCQlmMmZzX3B1dF9w YWdlKHBhZ2UsIDApOwo+ICAJfQo+IC0JYmxrX2ZpbmlzaF9wbHVnKCZwbHVnKTsKPiArCWYyZnNf c3VibWl0X3JlYWRfYmlvKHNiaSwgUkVBRF9TWU5DKTsKPiAgfQo+ICAKPiAgc3RhdGljIHN0cnVj dCBuYXRfZW50cnkgKl9fbG9va3VwX25hdF9jYWNoZShzdHJ1Y3QgZjJmc19ubV9pbmZvICpubV9p LCBuaWRfdCBuKQoKCgotLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0KU2hhcGUgdGhlIE1vYmlsZSBFeHBl cmllbmNlOiBGcmVlIFN1YnNjcmlwdGlvbgpTb2Z0d2FyZSBleHBlcnRzIGFuZCBkZXZlbG9wZXJz OiBCZSBhdCB0aGUgZm9yZWZyb250IG9mIHRlY2ggaW5ub3ZhdGlvbi4KSW50ZWwoUikgU29mdHdh cmUgQWRyZW5hbGluZSBkZWxpdmVycyBzdHJhdGVnaWMgaW5zaWdodCBhbmQgZ2FtZS1jaGFuZ2lu ZyAKY29udmVyc2F0aW9ucyB0aGF0IHNoYXBlIHRoZSByYXBpZGx5IGV2b2x2aW5nIG1vYmlsZSBs YW5kc2NhcGUuIFNpZ24gdXAgbm93LiAKaHR0cDovL3B1YmFkcy5nLmRvdWJsZWNsaWNrLm5ldC9n YW1wYWQvY2xrP2lkPTYzNDMxMzExJml1PS80MTQwL29zdGcuY2xrdHJrCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkxpbnV4LWYyZnMtZGV2ZWwgbWFpbGlu ZyBsaXN0CkxpbnV4LWYyZnMtZGV2ZWxAbGlzdHMuc291cmNlZm9yZ2UubmV0Cmh0dHBzOi8vbGlz dHMuc291cmNlZm9yZ2UubmV0L2xpc3RzL2xpc3RpbmZvL2xpbnV4LWYyZnMtZGV2ZWwK