For historical version, commit 97f0b1345219 ("tracing: add trace event
for memory-failure") introduced memory_failure_event in ras subsystem.
commit 31807483d395 ("mm/memory-failure: remove the selection of RAS")
changed memory_failure_event to memory_failure subsystem. This breaks
the backward compatibility, some user programs rely on it.
Change memory_failure_event to ras subsystem to keep backward
compatibility.
Fixes: 31807483d395 ("mm/memory-failure: remove the selection of RAS")
Reported-by: Yi Lai <[email protected]>
Reported-by: Qiuxu Zhuo <[email protected]>
Closes:
https://lore.kernel.org/linux-mm/cy8pr11mb7134346a3e4bb28eca28d6e989...@cy8pr11mb7134.namprd11.prod.outlook.com
Cc: David Hildenbrand <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Miaohe Lin <[email protected]>
Signed-off-by: Xie Yuanbin <[email protected]>
---
include/trace/events/memory-failure.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/trace/events/memory-failure.h
b/include/trace/events/memory-failure.h
index aa57cc8f896b..7a8ee5d1a44e 100644
--- a/include/trace/events/memory-failure.h
+++ b/include/trace/events/memory-failure.h
@@ -1,6 +1,10 @@
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
-#define TRACE_SYSTEM memory_failure
+/*
+ * For historical versions, memory_failure_event is in ras subsystem,
+ * some user programs depend on it.
+ */
+#define TRACE_SYSTEM ras
#define TRACE_INCLUDE_FILE memory-failure
#if !defined(_TRACE_MEMORY_FAILURE_H) || defined(TRACE_HEADER_MULTI_READ)
--
2.53.0
