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authorIngo Molnar <mingo@kernel.org>2019-02-28 08:27:17 +0100
committerIngo Molnar <mingo@kernel.org>2019-02-28 08:27:17 +0100
commit9ed8f1a6e7670aadd5aef30456a90b456ed1b185 (patch)
treeb93479f7f70187b68d29b747ce02c720ddb11f42 /mm/debug.c
parent43f4e6279f05eefac058a3524e184cecae463bfe (diff)
parent7d762d69145a54d169f58e56d6dac57a5508debc (diff)
Merge branch 'linus' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/debug.c')
-rw-r--r--mm/debug.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/debug.c b/mm/debug.c
index 0abb987dad9b..1611cf00a137 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -44,7 +44,7 @@ const struct trace_print_flags vmaflag_names[] = {
void __dump_page(struct page *page, const char *reason)
{
- struct address_space *mapping = page_mapping(page);
+ struct address_space *mapping;
bool page_poisoned = PagePoisoned(page);
int mapcount;
@@ -58,6 +58,8 @@ void __dump_page(struct page *page, const char *reason)
goto hex_only;
}
+ mapping = page_mapping(page);
+
/*
* Avoid VM_BUG_ON() in page_mapcount().
* page->_mapcount space in struct page is used by sl[aou]b pages to