[Crash-utility] [PATCH] Fix "kmem -p" option on Linux 6.16-rc1 and later kernels
Kernel commit acc53a0b4c156 ("mm: rename page->index to
page->__folio_index"), which is contained in Linux 6.16-rc1 and later
kernels, renamed the member. Without the patch, the "kmem -p" option
fails with the following error:
kmem: invalid structure member offset: page_index
FILE: memory.c LINE: 6016 FUNCTION: dump_mem_map_SPARSEMEM()
Signed-off-by: Kazuhito Hagio <k-hagio-ab(a)nec.com>
---
memory.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/memory.c b/memory.c
index 0d8d89862383..5cb8b58e2181 100644
--- a/memory.c
+++ b/memory.c
@@ -531,6 +531,8 @@ vm_init(void)
ASSIGN_OFFSET(page_mapping) = MEMBER_OFFSET("page", "_mapcount") +
STRUCT_SIZE("atomic_t") + sizeof(ulong);
MEMBER_OFFSET_INIT(page_index, "page", "index");
+ if (INVALID_MEMBER(page_index)) /* 6.16 and later */
+ MEMBER_OFFSET_INIT(page_index, "page", "__folio_index");
if (INVALID_MEMBER(page_index))
ANON_MEMBER_OFFSET_INIT(page_index, "page", "index");
MEMBER_OFFSET_INIT(page_buffers, "page", "buffers");
--
2.31.1