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On 07/23/2013 08:44 AM, Vijarnia, Anil wrote:<br>
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<pre>Hello,<o:p></o:p></pre>
<pre>In Documentation/cache.txt, section ‘Updating on-disk metadata’ mentions that “If the system crashes all cache blocks will be assumed dirty when restarted”. <o:p></o:p></pre>
<pre>I am assuming that the above line is relevant for writeback mode only, and in writethrough mode the cache will always be coherent after a crash. <o:p></o:p></pre>
<pre>Can someone confirm/reject this assumption?<o:p></o:p></pre>
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That's correct<br>
<br>
Reason being that the cache never holds any dirty pages in
writethrough mode.<br>
<br>
-- lvmguy<br>
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<pre><o:p> </o:p></pre>
<pre>Thanks<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre><o:p> </o:p></pre>
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