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trace: make trace_hwlat timestamp y2038 safe

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struct timespec is not y2038 safe on 32 bit machines and needs to be
replaced by struct timespec64 in order to represent times beyond year
2038 on such machines.

Fix all the timestamp representation in struct trace_hwlat and all the
corresponding implementations.

Link: http://lkml.kernel.org/r/1491613030-11599-3-git-send-email-deepa.kernel@gmail.com
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Deepa Dinamani 2017-05-08 15:59:13 -07:00 • committed by Linus Torvalds
parent 48fbfe50f1
commit 51aad0aee5
3 changed files with 14 additions and 15 deletions
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9
kernel/trace/trace_output.c
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@ -4,7 +4,6 @@
* Copyright (C) 2008 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
*
*/
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/ftrace.h>
@ -1161,11 +1160,11 @@ trace_hwlat_print(struct trace_iterator *iter, int flags,
trace_assign_type(field, entry);
trace_seq_printf(s, "#%-5u inner/outer(us): %4llu/%-5llu ts:%ld.%09ld",
trace_seq_printf(s, "#%-5u inner/outer(us): %4llu/%-5llu ts:%lld.%09ld",
field->seqnum,
field->duration,
field->outer_duration,
field->timestamp.tv_sec,
(long long)field->timestamp.tv_sec,
field->timestamp.tv_nsec);
if (field->nmi_count) {
@ -1195,10 +1194,10 @@ trace_hwlat_raw(struct trace_iterator *iter, int flags,
trace_assign_type(field, iter->ent);
trace_seq_printf(s, "%llu %lld %ld %09ld %u\n",
trace_seq_printf(s, "%llu %lld %lld %09ld %u\n",
field->duration,
field->outer_duration,
field->timestamp.tv_sec,
(long long)field->timestamp.tv_sec,
field->timestamp.tv_nsec,
field->seqnum);