Commit 33015c85 authored Apr 28, 2009 by Stuart Bennett Committed by Ingo Molnar Apr 29, 2009

tracing: x86, mmiotrace: fix range test



Matching on (addr == (p->addr + p->len)) causes problems when mappings
are adjacent.

[ Impact: fix mmiotrace confusion on adjacent iomaps ]

Signed-off-by: Stuart Bennett <stuart@freedesktop.org>
Acked-by: Pekka Paalanen <pq@iki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1240946271-7083-2-git-send-email-stuart@freedesktop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 7267fa68

arch/x86/mm/kmmio.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -87,7 +87,7 @@ static struct kmmio_probe *get_kmmio_probe(unsigned long addr)
		{
		struct kmmio_probe *p;
		list_for_each_entry_rcu(p, &kmmio_probes, list) {
		if (addr >= p->addr && addr <= (p->addr + p->len))
		if (addr >= p->addr && addr < (p->addr + p->len))
		return p;
		}
		return NULL;