/*
 * Copyright (c) 2014 Christoph Hellwig.
 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM nfsd

#if !defined(_NFSD_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _NFSD_TRACE_H

#include <linux/tracepoint.h>
#include "nfsfh.h"

DECLARE_EVENT_CLASS(nfsd_io_class,
	TP_PROTO(struct svc_rqst *rqstp,
		 struct svc_fh	*fhp,
		 loff_t		offset,
		 int		len),
	TP_ARGS(rqstp, fhp, offset, len),
	TP_STRUCT__entry(
		__field(__be32, xid)
		__field_struct(struct knfsd_fh, fh)
		__field(loff_t, offset)
		__field(int, len)
	),
	TP_fast_assign(
		__entry->xid = rqstp->rq_xid,
		fh_copy_shallow(&__entry->fh, &fhp->fh_handle);
		__entry->offset = offset;
		__entry->len = len;
	),
	TP_printk("xid=0x%x fh=0x%x offset=%lld len=%d",
		  __be32_to_cpu(__entry->xid), knfsd_fh_hash(&__entry->fh),
		  __entry->offset, __entry->len)
)

#define DEFINE_NFSD_IO_EVENT(name)		\
DEFINE_EVENT(nfsd_io_class, name,		\
	TP_PROTO(struct svc_rqst *rqstp,	\
		 struct svc_fh	*fhp,		\
		 loff_t		offset,		\
		 int		len),		\
	TP_ARGS(rqstp, fhp, offset, len))

DEFINE_NFSD_IO_EVENT(read_start);
DEFINE_NFSD_IO_EVENT(read_opened);
DEFINE_NFSD_IO_EVENT(read_io_done);
DEFINE_NFSD_IO_EVENT(read_done);
DEFINE_NFSD_IO_EVENT(write_start);
DEFINE_NFSD_IO_EVENT(write_opened);
DEFINE_NFSD_IO_EVENT(write_io_done);
DEFINE_NFSD_IO_EVENT(write_done);

#include "state.h"

DECLARE_EVENT_CLASS(nfsd_stateid_class,
	TP_PROTO(stateid_t *stp),
	TP_ARGS(stp),
	TP_STRUCT__entry(
		__field(u32, cl_boot)
		__field(u32, cl_id)
		__field(u32, si_id)
		__field(u32, si_generation)
	),
	TP_fast_assign(
		__entry->cl_boot = stp->si_opaque.so_clid.cl_boot;
		__entry->cl_id = stp->si_opaque.so_clid.cl_id;
		__entry->si_id = stp->si_opaque.so_id;
		__entry->si_generation = stp->si_generation;
	),
	TP_printk("client %08x:%08x stateid %08x:%08x",
		__entry->cl_boot,
		__entry->cl_id,
		__entry->si_id,
		__entry->si_generation)
)

#define DEFINE_STATEID_EVENT(name) \
DEFINE_EVENT(nfsd_stateid_class, name, \
	TP_PROTO(stateid_t *stp), \
	TP_ARGS(stp))
DEFINE_STATEID_EVENT(layoutstate_alloc);
DEFINE_STATEID_EVENT(layoutstate_unhash);
DEFINE_STATEID_EVENT(layoutstate_free);
DEFINE_STATEID_EVENT(layout_get_lookup_fail);
DEFINE_STATEID_EVENT(layout_commit_lookup_fail);
DEFINE_STATEID_EVENT(layout_return_lookup_fail);
DEFINE_STATEID_EVENT(layout_recall);
DEFINE_STATEID_EVENT(layout_recall_done);
DEFINE_STATEID_EVENT(layout_recall_fail);
DEFINE_STATEID_EVENT(layout_recall_release);

#endif /* _NFSD_TRACE_H */

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>
type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>codecs</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs/rl6231.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>rl6231.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'/><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>Benjamin Herrenschmidt &lt;benh@kernel.crashing.org&gt;</td><td class='right'>2017-02-03 17:10:28 +1100</td></tr>
<tr><th>committer</th><td>Michael Ellerman &lt;mpe@ellerman.id.au&gt;</td><td class='right'>2017-02-08 23:36:29 +1100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs/rl6231.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>d7df2443cd5f67fc6ee7c05a88e4996e8177f91b</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/soc/codecs/rl6231.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>098a7c0ca4fceb8a65cb1f693c9d71990388933d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/codecs/rl6231.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>sound/soc/codecs/rl6231.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs/rl6231.c?id=a0615a16f7d0ceb5804d295203c302d496d8ee91'>a0615a16f7d0ceb5804d295203c302d496d8ee91</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/codecs/rl6231.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b&amp;id2=a0615a16f7d0ceb5804d295203c302d496d8ee91'>diff</a>)</td></tr></table>
<div class='commit-subject'>powerpc/mm: Fix spurrious segfaults on radix with autonuma</div><div class='commit-msg'>When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it
clears all the protection bits but leave the PTE valid.

With the Radix MMU, an attempt at executing from such a PTE will
take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G".

It is thus incorrect to treat all such faults as errors. We should
pass them to handle_mm_fault() for autonuma to deal with. The case
of pages that are really not executable is handled by the existing
test for VM_EXEC further down.

That leaves us with catching the kernel attempts at executing user
pages. We can catch that earlier, even before we do find_vma.

It is never valid on powerpc for the kernel to take an exec fault
to begin with. So fold that test with the existing test for the
kernel faulting on kernel addresses to bail out early.

Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report")
Signed-off-by: Benjamin Herrenschmidt &lt;benh@kernel.crashing.org&gt;
Reviewed-by: Aneesh Kumar K.V &lt;aneesh.kumar@linux.vnet.ibm.com&gt;
Acked-by: Balbir Singh &lt;bsingharora@gmail.com&gt;
Signed-off-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>Diffstat</a> (limited to 'sound/soc/codecs/rl6231.c')</div><table summary='diffstat' class='diffstat'>