From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [v4,72/73] xfs: Convert mru cache to XArray From: Joe Perches Message-Id: <1513275822.27409.73.camel@perches.com> Date: Thu, 14 Dec 2017 10:23:42 -0800 To: Matthew Wilcox Cc: Dave Chinner , Alan Stern , Byungchul Park , Theodore Ts'o , Matthew Wilcox , Ross Zwisler , Jens Axboe , Rehas Sachdeva , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-nilfs@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@lge.com List-ID: T24gTW9uLCAyMDE3LTEyLTExIGF0IDE0OjQzIC0wODAwLCBNYXR0aGV3IFdpbGNveCB3cm90ZToK PiAgLSBUaGVyZSdzIG5vIHdhcm5pbmcgZm9yIHRoZSBmaXJzdCBwYXJhZ3JhcGggb2Ygc2VjdGlv biA2Ogo+IAo+IDYpIEZ1bmN0aW9ucwo+IC0tLS0tLS0tLS0tLQo+IAo+IEZ1bmN0aW9ucyBzaG91 bGQgYmUgc2hvcnQgYW5kIHN3ZWV0LCBhbmQgZG8ganVzdCBvbmUgdGhpbmcuICBUaGV5IHNob3Vs ZAo+IGZpdCBvbiBvbmUgb3IgdHdvIHNjcmVlbmZ1bHMgb2YgdGV4dCAodGhlIElTTy9BTlNJIHNj cmVlbiBzaXplIGlzIDgweDI0LAo+IGFzIHdlIGFsbCBrbm93KSwgYW5kIGRvIG9uZSB0aGluZyBh bmQgZG8gdGhhdCB3ZWxsLgo+IAo+ICAgIEknbSBub3QgZXhwZWN0aW5nIHlvdSB0byBiZSBhYmxl IHRvIHdyaXRlIGEgcGVybCBzY3JpcHQgdGhhdCBjaGVja3MKPiAgICB0aGUgZmlyc3QgbGluZSwg YnV0IHdlIGhhdmUgd2F5IHRvbyBtYW55IDIwMC1wbHVzIGxpbmUgZnVuY3Rpb25zIGluCj4gICAg dGhlIGtlcm5lbC4gIEknZCBsaWtlIGEgd2FybmluZyBvbiBhbnl0aGluZyBvdmVyIDIwMCBsaW5l cyAoYSBmYWN0b3IKPiAgICBvZiA0IG92ZXIgTGludXMncyBzdGF0ZWQgZ29hbCkuCgpQZXJoYXBz IHNvbWV0aGluZyBsaWtlIHRoaXM/CgoodmVyeSB2ZXJ5IGxpZ2h0bHkgdGVzdGVkLCBtb3JlIHRl c3RpbmcgYXBwcmVjaWF0ZWQpCi0tLQogc2NyaXB0cy9jaGVja3BhdGNoLnBsIHwgMTEgKysrKysr KysrKysKIDEgZmlsZSBjaGFuZ2VkLCAxMSBpbnNlcnRpb25zKCspCgoKLS0KVG8gdW5zdWJzY3Jp YmUgZnJvbSB0aGlzIGxpc3Q6IHNlbmQgdGhlIGxpbmUgInVuc3Vic2NyaWJlIGxpbnV4LXVzYiIg aW4KdGhlIGJvZHkgb2YgYSBtZXNzYWdlIHRvIG1ham9yZG9tb0B2Z2VyLmtlcm5lbC5vcmcKTW9y ZSBtYWpvcmRvbW8gaW5mbyBhdCAgaHR0cDovL3ZnZXIua2VybmVsLm9yZy9tYWpvcmRvbW8taW5m by5odG1sCgpkaWZmIC0tZ2l0IGEvc2NyaXB0cy9jaGVja3BhdGNoLnBsIGIvc2NyaXB0cy9jaGVj a3BhdGNoLnBsCmluZGV4IDQzMDZiNzYxNmNkZC4uNTIzYWVhZDQwYjg3IDEwMDc1NQotLS0gYS9z Y3JpcHRzL2NoZWNrcGF0Y2gucGwKKysrIGIvc2NyaXB0cy9jaGVja3BhdGNoLnBsCkBAIC01OSw2 ICs1OSw3IEBAIG15ICRjb25zdHN0cnVjdHNmaWxlID0gIiREL2NvbnN0X3N0cnVjdHMuY2hlY2tw YXRjaCI7CiBteSAkdHlwZWRlZnNmaWxlID0gIiI7CiBteSAkY29sb3IgPSAiYXV0byI7CiBteSAk YWxsb3dfYzk5X2NvbW1lbnRzID0gMTsKK215ICRtYXhfZnVuY3Rpb25fbGVuZ3RoID0gMjAwOwog CiBzdWIgaGVscCB7CiAJbXkgKCRleGl0Y29kZSkgPSBAXzsKQEAgLTIyMDIsNiArMjIwMyw3IEBA IHN1YiBwcm9jZXNzIHsKIAlteSAkcmVhbGNudCA9IDA7CiAJbXkgJGhlcmUgPSAnJzsKIAlteSAk Y29udGV4dF9mdW5jdGlvbjsJCSN1bmRlZidkIHVubGVzcyB0aGVyZSdzIGEga25vd24gZnVuY3Rp b24KKwlteSAkY29udGV4dF9mdW5jdGlvbl9saW5lbnVtOwogCW15ICRpbl9jb21tZW50ID0gMDsK IAlteSAkY29tbWVudF9lZGdlID0gMDsKIAlteSAkZmlyc3RfbGluZSA9IDA7CkBAIC0yMzQxLDYg KzIzNDMsNyBAQCBzdWIgcHJvY2VzcyB7CiAJCQl9IGVsc2UgewogCQkJCXVuZGVmICRjb250ZXh0 X2Z1bmN0aW9uOwogCQkJfQorCQkJdW5kZWYgJGNvbnRleHRfZnVuY3Rpb25fbGluZW51bTsKIAkJ CW5leHQ7CiAKICMgdHJhY2sgdGhlIGxpbmUgbnVtYmVyIGFzIHdlIG1vdmUgdGhyb3VnaCB0aGUg aHVuaywgbm90ZSB0aGF0CkBAIC0zMjAwLDExICszMjAzLDE4IEBAIHN1YiBwcm9jZXNzIHsKIAkJ aWYgKCRzbGluZSA9fiAvXlwrXHtccyokLyAmJgogCQkgICAgJHByZXZsaW5lID1+IC9eXCsoPzoo PzooPzokU3RvcmFnZXwkSW5saW5lKVxzKikqXHMqJFR5cGVccyopPygkSWRlbnQpXCgvKSB7CiAJ CQkkY29udGV4dF9mdW5jdGlvbiA9ICQxOworCQkJJGNvbnRleHRfZnVuY3Rpb25fbGluZW51bSA9 ICRyZWFsbGluZTsKIAkJfQogCiAjIGNoZWNrIGlmIHRoaXMgYXBwZWFycyB0byBiZSB0aGUgZW5k IG9mIGZ1bmN0aW9uIGRlY2xhcmF0aW9uCiAJCWlmICgkc2xpbmUgPX4gL15cK1x9XHMqJC8pIHsK KwkJCWlmIChkZWZpbmVkKCRjb250ZXh0X2Z1bmN0aW9uX2xpbmVudW0pICYmCisJCQkgICAgKCRy ZWFsbGluZSAtICRjb250ZXh0X2Z1bmN0aW9uX2xpbmVudW0pID4gJG1heF9mdW5jdGlvbl9sZW5n dGgpIHsKKwkJCQlXQVJOKCJMT05HX0ZVTkNUSU9OIiwKKwkJCQkgICAgICInJGNvbnRleHRfZnVu Y3Rpb24nIGZ1bmN0aW9uIGRlZmluaXRpb24gaXMgIiAuICgkcmVhbGxpbmUgLSAkY29udGV4dF9m dW5jdGlvbl9saW5lbnVtKSAuICIgbGluZXMsIHBlcmhhcHMgcmVmYWN0b3JcbiIgLiAkaGVyZWN1 cnIpOworCQkJfQogCQkJdW5kZWYgJGNvbnRleHRfZnVuY3Rpb247CisJCQl1bmRlZiAkY29udGV4 dF9mdW5jdGlvbl9saW5lbnVtOwogCQl9CiAKICMgY2hlY2sgaW5kZW50YXRpb24gb2YgYW55IGxp bmUgd2l0aCBhIGJhcmUgZWxzZQpAQCAtNTk4Myw2ICs1OTkzLDcgQEAgc3ViIHByb2Nlc3Mgewog CQkgICAgZGVmaW5lZCAkc3RhdCAmJgogCQkgICAgJHN0YXQgPX4gL14uXHMqKD86JFN0b3JhZ2Vc cyspPyRUeXBlXHMqKCRJZGVudClccyokYmFsYW5jZWRfcGFyZW5zXHMqey9zKSB7CiAJCQkkY29u dGV4dF9mdW5jdGlvbiA9ICQxOworCQkJJGNvbnRleHRfZnVuY3Rpb25fbGluZW51bSA9ICRyZWFs bGluZTsKIAogIyBjaGVjayBmb3IgbXVsdGlsaW5lIGZ1bmN0aW9uIGRlZmluaXRpb24gd2l0aCBt aXNwbGFjZWQgb3BlbiBicmFjZQogCQkJbXkgJG9rID0gMDsK