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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>ata_scsi_offline_dev</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="libATA Developer's Guide" /><link rel="up" href="ch06.html" title="Chapter 6. libata SCSI translation/emulation" /><link rel="prev" href="re160.html" title="ata_scsi_dump_cdb" /><link rel="next" href="re162.html" title="ata_scsi_remove_dev" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>ata_scsi_offline_dev</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re160.html">Prev</a> </td><th width="60%" align="center">Chapter 6. libata SCSI translation/emulation</th><td width="20%" align="right"> <a accesskey="n" href="re162.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="ata_scsi_offline_dev"><a id="API-ata-scsi-offline-dev"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ata_scsi_offline_dev —
offline attached SCSI device
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">int <b class="fsfunc">ata_scsi_offline_dev </b>(</code></td><td>struct ata_device * <var class="pdparam">dev</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2917305"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>dev</code></em></span></dt><dd><p>
ATA device to offline attached SCSI device for
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2917332"></a><h2>Description</h2><p>
This function is called from <code class="function">ata_eh_hotplug</code> and responsible
for taking the SCSI device attached to <em class="parameter"><code>dev</code></em> offline. This
function is called with host lock which protects dev->sdev
against clearing.
</p></div><div class="refsect1" title="LOCKING"><a id="id2917357"></a><h2>LOCKING</h2><p>
spin_lock_irqsave(host lock)
</p></div><div class="refsect1" title="RETURNS"><a id="id2917368"></a><h2>RETURNS</h2><p>
1 if attached SCSI device exists, 0 otherwise.
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