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authorThomas Gleixner <tglx@linutronix.de>2019-04-10 12:28:08 +0200
committerThomas Gleixner <tglx@linutronix.de>2019-04-14 19:58:31 +0200
commitaccddc41b96915ab4e5d37796c6d17d70805999c (patch)
treea16b3503c18c26dd2ae2c4a400e24b559ca1475f /fs/proc
parentead97a49ec3a3cb9b5133acbfed9a49b91ebf37c (diff)
downloadlinux-accddc41b96915ab4e5d37796c6d17d70805999c.tar.bz2
latency_top: Remove the ULONG_MAX stack trace hackery
No architecture terminates the stack trace with ULONG_MAX anymore. The consumer terminates on the first zero entry or at the number of entries, so no functional change. Remove the cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Alexander Potapenko <glider@google.com> Link: https://lkml.kernel.org/r/20190410103644.853527514@linutronix.de
Diffstat (limited to 'fs/proc')
-rw-r--r--fs/proc/base.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 6a803a0b75df..5569f215fc54 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -489,10 +489,9 @@ static int lstats_show_proc(struct seq_file *m, void *v)
lr->count, lr->time, lr->max);
for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
unsigned long bt = lr->backtrace[q];
+
if (!bt)
break;
- if (bt == ULONG_MAX)
- break;
seq_printf(m, " %ps", (void *)bt);
}
seq_putc(m, '\n');