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authorSean Paul <seanpaul@chromium.org>2019-03-06 09:22:18 -0500
committerSean Paul <seanpaul@chromium.org>2019-03-06 09:22:18 -0500
commitcd7d3a1bb42e0756b17ccfafbd956ca7ed757846 (patch)
treefb76fd0ccaaaa3f27ef0a06ecf3d04ebe9d4025d /mm/debug.c
parentdrm/vc4: Add a debugfs entry to disable/enable the load tracker (diff)
parentMerge tag 'drm-misc-fixes-2019-02-22' of git://anongit.freedesktop.org/drm/drm-misc into drm-next (diff)
Merge drm/drm-next into drm-misc-next
Picking up v5.0 + missed misc-fixes from last release Signed-off-by: Sean Paul <seanpaul@chromium.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