<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>probe::nfs.aop.readpage</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="SystemTap Tapset Reference Manual"><link rel="up" href="nfsd.stp.html" title="Chapter 30. Network File Storage Tapsets"><link rel="prev" href="API-nfsderror.html" title="function::nfsderror"><link rel="next" href="API-nfs-aop-readpages.html" title="probe::nfs.aop.readpages"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">probe::nfs.aop.readpage</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-nfsderror.html">Prev</a> </td><th width="60%" align="center">Chapter 30. Network File Storage Tapsets</th><td width="20%" align="right"> <a accesskey="n" href="API-nfs-aop-readpages.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-nfs-aop-readpage"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>probe::nfs.aop.readpage —
NFS client synchronously reading a page
</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">nfs.aop.readpage </pre></div><div class="refsect1"><a name="idp148699436"></a><h2>Values</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>i_size</code></em></span></dt><dd><p>
file length in bytes
</p></dd><dt><span class="term"><em class="parameter"><code>dev</code></em></span></dt><dd><p>
device identifier
</p></dd><dt><span class="term"><em class="parameter"><code>rsize</code></em></span></dt><dd><p>
read size (in bytes)
</p></dd><dt><span class="term"><em class="parameter"><code>sb_flag</code></em></span></dt><dd><p>
super block flags
</p></dd><dt><span class="term"><em class="parameter"><code>file</code></em></span></dt><dd><p>
file argument
</p></dd><dt><span class="term"><em class="parameter"><code>page_index</code></em></span></dt><dd><p>
offset within mapping, can used a page identifier
and position identifier in the page frame
</p></dd><dt><span class="term"><em class="parameter"><code>__page</code></em></span></dt><dd><p>
the address of page
</p></dd><dt><span class="term"><em class="parameter"><code>size</code></em></span></dt><dd><p>
number of pages to be read in this execution
</p></dd><dt><span class="term"><em class="parameter"><code>i_flag</code></em></span></dt><dd><p>
file flags
</p></dd><dt><span class="term"><em class="parameter"><code>ino</code></em></span></dt><dd><p>
inode number
</p></dd></dl></div></div><div class="refsect1"><a name="idp148710308"></a><h2>Description</h2><p>
Read the page over, only fires when a previous async
read operation failed
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