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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-18410] Remove RWLock</title>
                <link>https://jira.mongodb.org/browse/SERVER-18410</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;After &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-18190&quot; title=&quot;Secondary reads may block replication &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-18190&quot;&gt;&lt;del&gt;SERVER-18190&lt;/del&gt;&lt;/a&gt;, the RWLock class and its descendants are now only used by MMAPv1. The current usage should be replaced by LockManager managed locks.&lt;/p&gt;</description>
                <environment></environment>
        <key id="203296">SERVER-18410</key>
            <summary>Remove RWLock</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="9">Done</resolution>
                                        <assignee username="daniel.gottlieb@mongodb.com">Daniel Gottlieb</assignee>
                                    <reporter username="geert.bosch@mongodb.com">Geert Bosch</reporter>
                        <labels>
                    </labels>
                <created>Mon, 11 May 2015 14:27:01 +0000</created>
                <updated>Wed, 5 Apr 2017 11:42:25 +0000</updated>
                            <resolved>Thu, 2 Mar 2017 16:22:37 +0000</resolved>
                                                    <fixVersion>3.5.4</fixVersion>
                                    <component>Concurrency</component>
                    <component>MMAPv1</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="1514486" author="xgen-internal-githook" created="Thu, 2 Mar 2017 16:21:59 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dgottlieb&apos;, u&apos;name&apos;: u&apos;Daniel Gottlieb&apos;, u&apos;email&apos;: u&apos;daniel.gottlieb@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-18410&quot; title=&quot;Remove RWLock&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-18410&quot;&gt;&lt;del&gt;SERVER-18410&lt;/del&gt;&lt;/a&gt;: Replace RWLock with OperationContext/LockManager&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6753fb211150d85eed71a84393bd13f2a07a8865&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6753fb211150d85eed71a84393bd13f2a07a8865&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1509725" author="xgen-internal-githook" created="Sun, 26 Feb 2017 17:01:19 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dgottlieb&apos;, u&apos;name&apos;: u&apos;Daniel Gottlieb&apos;, u&apos;email&apos;: u&apos;daniel.gottlieb@10gen.com&apos;}
&lt;p&gt;Message: revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-18410&quot; title=&quot;Remove RWLock&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-18410&quot;&gt;&lt;del&gt;SERVER-18410&lt;/del&gt;&lt;/a&gt;: Replace RWLock with OperationContext/LockManager&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit 9c9bbf3318113cfdd4d9b72f493b6ebd23f1837e.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b94dd91adb6d8859ab5e5f91731be2e8571eed0c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b94dd91adb6d8859ab5e5f91731be2e8571eed0c&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1508753" author="xgen-internal-githook" created="Fri, 24 Feb 2017 14:57:07 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dgottlieb&apos;, u&apos;name&apos;: u&apos;Daniel Gottlieb&apos;, u&apos;email&apos;: u&apos;daniel.gottlieb@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-18410&quot; title=&quot;Remove RWLock&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-18410&quot;&gt;&lt;del&gt;SERVER-18410&lt;/del&gt;&lt;/a&gt;: Replace RWLock with OperationContext/LockManager&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/9c9bbf3318113cfdd4d9b72f493b6ebd23f1837e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/9c9bbf3318113cfdd4d9b72f493b6ebd23f1837e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1453809" author="milkie" created="Fri, 9 Dec 2016 14:49:17 +0000"  >&lt;p&gt;I suspect that we might just be able to drop in std::shared_timed_mutex for this, as it is new in C++14.&lt;/p&gt;</comment>
                            <comment id="1446288" author="milkie" created="Wed, 30 Nov 2016 21:31:06 +0000"  >&lt;p&gt;Is &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-20218&quot; title=&quot;Detect inconsistent lock ordering&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-20218&quot;&gt;&lt;del&gt;SERVER-20218&lt;/del&gt;&lt;/a&gt; still a prerequisite for this work?&lt;/p&gt;</comment>
                            <comment id="912155" author="xgen-internal-githook" created="Tue, 12 May 2015 21:10:14 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;GeertBosch&apos;, u&apos;name&apos;: u&apos;Geert Bosch&apos;, u&apos;email&apos;: u&apos;geert@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-18410&quot; title=&quot;Remove RWLock&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-18410&quot;&gt;&lt;del&gt;SERVER-18410&lt;/del&gt;&lt;/a&gt;: Move MMAPv1 specific libraries from util to db/storage/mmap_v1&lt;/p&gt;

&lt;p&gt;Also removes some dependencies on MMAP_v1 specific files that are not&lt;br/&gt;
needed anymore, and moves the &apos;paths&apos; library to db/storage.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4486be04b169d967683ce705b6288c82cbd34947&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4486be04b169d967683ce705b6288c82cbd34947&lt;/a&gt;&lt;/p&gt;</comment>
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                                        <issuelink>
            <issuekey id="227774">SERVER-20218</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="230685">SERVER-20524</issuekey>
        </issuelink>
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                                        <issuelink>
            <issuekey id="339822">SERVER-27458</issuekey>
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            <issuelink>
            <issuekey id="322310">SERVER-26539</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="322311">SERVER-26540</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="356654">SERVER-28083</issuekey>
        </issuelink>
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