This document gives a brief rationale for the TREE_RCU-related test
cases, a group that includes PREEMPT_RCU.


Kconfig Parameters:

CONFIG_DEBUG_LOCK_ALLOC -- Do three, covering CONFIG_PROVE_LOCKING & not.
CONFIG_DEBUG_OBJECTS_RCU_HEAD -- Do one.
CONFIG_HOTPLUG_CPU -- Do half.  (Every second.)
CONFIG_HZ_PERIODIC -- Do one.
CONFIG_NO_HZ_IDLE -- Do those not otherwise specified. (Groups of two.)
CONFIG_NO_HZ_FULL -- Do two, one with CONFIG_NO_HZ_FULL_SYSIDLE.
CONFIG_NO_HZ_FULL_SYSIDLE -- Do one.
CONFIG_PREEMPT -- Do half.  (First three and #8.)
CONFIG_PROVE_LOCKING -- Do several, covering CONFIG_DEBUG_LOCK_ALLOC=y and not.
CONFIG_PROVE_RCU -- Hardwired to CONFIG_PROVE_LOCKING.
CONFIG_RCU_BOOST -- one of PREEMPT_RCU.
CONFIG_RCU_KTHREAD_PRIO -- set to 2 for _BOOST testing.
CONFIG_RCU_FANOUT -- Cover hierarchy, but overlap with others.
CONFIG_RCU_FANOUT_LEAF -- Do one non-default.
CONFIG_RCU_FAST_NO_HZ -- Do one, but not with CONFIG_RCU_NOCB_CPU_ALL.
CONFIG_RCU_NOCB_CPU -- Do three, see below.
CONFIG_RCU_NOCB_CPU_ALL -- Do one.
CONFIG_RCU_NOCB_CPU_NONE -- Do one.
CONFIG_RCU_NOCB_CPU_ZERO -- Do one.
CONFIG_RCU_TRACE -- Do half.
CONFIG_SMP -- Need one !SMP for PREEMPT_RCU.
!RCU_EXPERT -- Do a few, but these have to be vanilla configurations.
RCU-bh: Do one with PREEMPT and one with !PREEMPT.
RCU-sched: Do one with PREEMPT but not BOOST.


Boot parameters:

nohz_full - do at least one.
maxcpu -- do at least one.
rcupdate.rcu_self_test_bh -- Do at least one each, offloaded and not.
rcupdate.rcu_self_test_sched -- Do at least one each, offloaded and not.
rcupdate.rcu_self_test -- Do at least one each, offloaded and not.
rcutree.rcu_fanout_exact -- Do at least one.


Kconfig Parameters Ignored:

CONFIG_64BIT

	Used only to check CONFIG_RCU_FANOUT value, inspection suffices.

CONFIG_NO_HZ_FULL_SYSIDLE_SMALL

	Defer until Frederic uses this.

CONFIG_PREEMPT_COUNT
CONFIG_PREEMPT_RCU

	Redundant with CONFIG_PREEMPT, ignore.

CONFIG_RCU_BOOST_DELAY

	Inspection suffices, ignore.

CONFIG_RCU_CPU_STALL_TIMEOUT

	Inspection suffices, ignore.

CONFIG_RCU_STALL_COMMON

	Implied by TREE_RCU and PREEMPT_RCU.

CONFIG_RCU_TORTURE_TEST
CONFIG_RCU_TORTURE_TEST_RUNNABLE

	Always used in KVM testing.

CONFIG_PREEMPT_RCU
CONFIG_TREE_RCU

	These are controlled by CONFIG_PREEMPT.
rm class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/sound/soc/sh/rcar'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound?h=nds-private-remove&amp;id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc?h=nds-private-remove&amp;id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/sh?h=nds-private-remove&amp;id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>sh</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/sh/rcar?h=nds-private-remove&amp;id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>rcar</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='e98d5fef8556f1da7f903fd1908feed84bb0f90d'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Axel Lin &lt;axel.lin@ingics.com&gt;</td><td class='right'>2016-10-21 16:40:05 +0800</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-10-24 17:49:14 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/sh/rcar?h=nds-private-remove&amp;id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>e98d5fef8556f1da7f903fd1908feed84bb0f90d</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/soc/sh/rcar?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>95a1268df894d6150ee31f5e97cbcb0c0ab32cc4</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/sh/rcar?h=nds-private-remove&amp;id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>sound/soc/sh/rcar</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/sh/rcar?h=nds-private-remove&amp;id=1001354ca34179f3db924eb66672442a173147dc'>1001354ca34179f3db924eb66672442a173147dc</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/sh/rcar?h=nds-private-remove&amp;id=e98d5fef8556f1da7f903fd1908feed84bb0f90d&amp;id2=1001354ca34179f3db924eb66672442a173147dc'>diff</a>)</td></tr></table>
<div class='commit-subject'>regulator: tps6507x: Drop pointless static qualifier for *reg_data variable</div><div class='commit-msg'>There is no need to use static for this local variable.

Signed-off-by: Axel Lin &lt;axel.lin@ingics.com&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>Diffstat</a> (limited to 'sound/soc/sh/rcar')</div><table summary='diffstat' class='diffstat'>