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mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE
[platform/adaptation/renesas_rcar/renesas_kernel.git]
/
include
/
linux
/
pagemap.h
diff --git
a/include/linux/pagemap.h
b/include/linux/pagemap.h
index
e3dea75
..
1710d1b
100644
(file)
--- a/
include/linux/pagemap.h
+++ b/
include/linux/pagemap.h
@@
-162,7
+162,7
@@
static inline int page_cache_get_speculative(struct page *page)
* disabling preempt, and hence no need for the "speculative get" that
* SMP requires.
*/
* disabling preempt, and hence no need for the "speculative get" that
* SMP requires.
*/
- VM_BUG_ON
(page_count(page) == 0
);
+ VM_BUG_ON
_PAGE(page_count(page) == 0, page
);
atomic_inc(&page->_count);
#else
atomic_inc(&page->_count);
#else
@@
-175,7
+175,7
@@
static inline int page_cache_get_speculative(struct page *page)
return 0;
}
#endif
return 0;
}
#endif
- VM_BUG_ON
(PageTail(page)
);
+ VM_BUG_ON
_PAGE(PageTail(page), page
);
return 1;
}
return 1;
}
@@
-191,14
+191,14
@@
static inline int page_cache_add_speculative(struct page *page, int count)
# ifdef CONFIG_PREEMPT_COUNT
VM_BUG_ON(!in_atomic());
# endif
# ifdef CONFIG_PREEMPT_COUNT
VM_BUG_ON(!in_atomic());
# endif
- VM_BUG_ON
(page_count(page) == 0
);
+ VM_BUG_ON
_PAGE(page_count(page) == 0, page
);
atomic_add(count, &page->_count);
#else
if (unlikely(!atomic_add_unless(&page->_count, count, 0)))
return 0;
#endif
atomic_add(count, &page->_count);
#else
if (unlikely(!atomic_add_unless(&page->_count, count, 0)))
return 0;
#endif
- VM_BUG_ON
(PageCompound(page) && page != compound_head(page)
);
+ VM_BUG_ON
_PAGE(PageCompound(page) && page != compound_head(page), page
);
return 1;
}
return 1;
}
@@
-210,7
+210,7
@@
static inline int page_freeze_refs(struct page *page, int count)
static inline void page_unfreeze_refs(struct page *page, int count)
{
static inline void page_unfreeze_refs(struct page *page, int count)
{
- VM_BUG_ON
(page_count(page) != 0
);
+ VM_BUG_ON
_PAGE(page_count(page) != 0, page
);
VM_BUG_ON(count == 0);
atomic_set(&page->_count, count);
VM_BUG_ON(count == 0);
atomic_set(&page->_count, count);