From bbe3de2560280c0420d36a192e69f2772e893cf4 Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Fri, 1 Apr 2016 14:31:32 -0700
Subject: [PATCH] mm/page_isolation: fix tracepoint to mirror check function
behavior
Page isolation has not failed if the fin pfn extends beyond the end pfn
and test_pages_isolated checks this correctly. Fix the tracepoint to
report the same result as the actual check function.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
include/trace/events/page_isolation.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/trace/events/page_isolation.h b/include/trace/events/page_isolation.h
index 6fb644029c801..8738a78e6bf49 100644
--- a/include/trace/events/page_isolation.h
+++ b/include/trace/events/page_isolation.h
@@ -29,7 +29,7 @@ TRACE_EVENT(test_pages_isolated,
TP_printk("start_pfn=0x%lx end_pfn=0x%lx fin_pfn=0x%lx ret=%s",
__entry->start_pfn, __entry->end_pfn, __entry->fin_pfn,
- __entry->end_pfn == __entry->fin_pfn ? "success" : "fail")
+ __entry->end_pfn <= __entry->fin_pfn ? "success" : "fail")
);
#endif /* _TRACE_PAGE_ISOLATION_H */
--
GitLab