/*
* Provide a default dump_stack() function for architectures
* which don't implement their own.
*/
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/atomic.h>
static void __dump_stack(void)
{
dump_stack_print_info(KERN_DEFAULT);
show_stack(NULL, NULL);
}
/**
* dump_stack - dump the current task information and its stack trace
*
* Architectures can override this implementation by implementing its own.
*/
#ifdef CONFIG_SMP
static atomic_t dump_lock = ATOMIC_INIT(-1);
asmlinkage __visible void dump_stack(void)
{
unsigned long flags;
int was_locked;
int old;
int cpu;
/*
* Permit this cpu to perform nested stack dumps while serialising
* against other CPUs
*/
retry:
local_irq_save(flags);
cpu = smp_processor_id();
old = atomic_cmpxchg(&dump_lock, -1, cpu);
if (old == -1) {
was_locked = 0;
} else if (old == cpu) {
was_locked = 1;
} else {
local_irq_restore(flags);
cpu_relax();
goto retry;
}
__dump_stack();
if (!was_locked)
atomic_set(&dump_lock, -1);
local_irq_restore(flags);
}
#else
asmlinkage __visible void dump_stack(void)
{
__dump_stack();
}
#endif
EXPORT_SYMBOL(dump_stack);
aster</option>
<option value='nds-private-remove' selected='selected'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/net/bridge/br_device.c?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/net/bridge/br_device.c?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/net/bridge/br_device.c?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/net/bridge/br_device.c?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/bridge/br_device.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/bridge?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>bridge</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/bridge/br_device.c?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>br_device.c</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='6302118226830c8f0aa0ec6afc8ef0cad84faa5f'/><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>Linus Torvalds <torvalds@linux-foundation.org></td><td class='right'>2017-01-23 13:36:37 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds <torvalds@linux-foundation.org></td><td class='right'>2017-01-23 13:36:37 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/bridge/br_device.c?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>6302118226830c8f0aa0ec6afc8ef0cad84faa5f</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/bridge/br_device.c?id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>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&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>19bae6c5242e63ace081324b1d602922792132f7</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/bridge/br_device.c?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>net/bridge/br_device.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/bridge/br_device.c?h=nds-private-remove&id=3258943ddb90157a5b220656712394bd91bd47f1'>3258943ddb90157a5b220656712394bd91bd47f1</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/bridge/br_device.c?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f&id2=3258943ddb90157a5b220656712394bd91bd47f1'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/bridge/br_device.c?h=nds-private-remove&id=739e6f5945d88dcee01590913f6886132a10c215'>739e6f5945d88dcee01590913f6886132a10c215</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/bridge/br_device.c?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f&id2=739e6f5945d88dcee01590913f6886132a10c215'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'gpio-v4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio</div><div class='commit-msg'>Pull GPIO fix from Linus Walleij:
"A single lockdep fix, nothing else going on. This makes lockdep
noiseless and work properly with threaded GPIO IRQchips.
Summary:
Fix a lockdep issue: the threaded irqchips also need their unique key,
and take this opportunity to get rid of the horrible macro and replace
it with a static inline"
* tag 'gpio-v4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: provide lockdep keys for nested/unnested irqchips
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&id=6302118226830c8f0aa0ec6afc8ef0cad84faa5f'>Diffstat</a> (limited to 'net/bridge/br_device.c')</div><table summary='diffstat' class='diffstat'>