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Subject[RFC 08/11] mm: debug: kill VM_BUG_ON_PAGE
Date
Just use VM_BUG() instead.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
---
arch/x86/mm/gup.c | 8 +++----
include/linux/hugetlb.h | 2 +-
include/linux/hugetlb_cgroup.h | 4 ++--
include/linux/mm.h | 22 +++++++++---------
include/linux/mmdebug.h | 8 -------
include/linux/page-flags.h | 26 +++++++++++-----------
include/linux/pagemap.h | 11 ++++-----
mm/cleancache.c | 6 ++---
mm/compaction.c | 2 +-
mm/filemap.c | 18 +++++++--------
mm/gup.c | 6 ++---
mm/huge_memory.c | 38 +++++++++++++++----------------
mm/hugetlb.c | 14 ++++++------
mm/hugetlb_cgroup.c | 2 +-
mm/internal.h | 8 +++----
mm/ksm.c | 13 ++++++-----
mm/memcontrol.c | 48 ++++++++++++++++++++--------------------
mm/memory.c | 8 +++----
mm/migrate.c | 6 ++---
mm/mlock.c | 4 ++--
mm/page_alloc.c | 26 +++++++++++-----------
mm/page_io.c | 4 ++--
mm/rmap.c | 14 ++++++------
mm/shmem.c | 10 +++++----
mm/slub.c | 4 ++--
mm/swap.c | 39 ++++++++++++++++----------------
mm/swap_state.c | 16 +++++++-------
mm/swapfile.c | 8 +++----
mm/vmscan.c | 24 ++++++++++----------
29 files changed, 198 insertions(+), 201 deletions(-)

diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index 81bf3d2..b04ea9e 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -108,8 +108,8 @@ static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,

static inline void get_head_page_multiple(struct page *page, int nr)
{
- VM_BUG_ON_PAGE(page != compound_head(page), page);
- VM_BUG_ON_PAGE(page_count(page) == 0, page);
+ VM_BUG(page != compound_head(page), "%pZp", page);
+ VM_BUG(page_count(page) == 0, "%pZp", page);
atomic_add(nr, &page->_count);
SetPageReferenced(page);
}
@@ -135,7 +135,7 @@ static noinline int gup_huge_pmd(pmd_t pmd, unsigned long addr,
head = pte_page(pte);
page = head + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
do {
- VM_BUG_ON_PAGE(compound_head(page) != head, page);
+ VM_BUG(compound_head(page) != head, "%pZp", page);
pages[*nr] = page;
if (PageTail(page))
get_huge_page_tail(page);
@@ -212,7 +212,7 @@ static noinline int gup_huge_pud(pud_t pud, unsigned long addr,
head = pte_page(pte);
page = head + ((addr & ~PUD_MASK) >> PAGE_SHIFT);
do {
- VM_BUG_ON_PAGE(compound_head(page) != head, page);
+ VM_BUG(compound_head(page) != head, "%pZp", page);
pages[*nr] = page;
if (PageTail(page))
get_huge_page_tail(page);
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 2050261..0da5cc4 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -415,7 +415,7 @@ static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,

static inline struct hstate *page_hstate(struct page *page)
{
- VM_BUG_ON_PAGE(!PageHuge(page), page);
+ VM_BUG(!PageHuge(page), "%pZp", page);
return size_to_hstate(PAGE_SIZE << compound_order(page));
}

diff --git a/include/linux/hugetlb_cgroup.h b/include/linux/hugetlb_cgroup.h
index bcc853e..7cca841 100644
--- a/include/linux/hugetlb_cgroup.h
+++ b/include/linux/hugetlb_cgroup.h
@@ -28,7 +28,7 @@ struct hugetlb_cgroup;

static inline struct hugetlb_cgroup *hugetlb_cgroup_from_page(struct page *page)
{
- VM_BUG_ON_PAGE(!PageHuge(page), page);
+ VM_BUG(!PageHuge(page), "%pZp", page);

if (compound_order(page) < HUGETLB_CGROUP_MIN_ORDER)
return NULL;
@@ -38,7 +38,7 @@ static inline struct hugetlb_cgroup *hugetlb_cgroup_from_page(struct page *page)
static inline
int set_hugetlb_cgroup(struct page *page, struct hugetlb_cgroup *h_cg)
{
- VM_BUG_ON_PAGE(!PageHuge(page), page);
+ VM_BUG(!PageHuge(page), "%pZp", page);

if (compound_order(page) < HUGETLB_CGROUP_MIN_ORDER)
return -1;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 5d20fba..62996a8 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -340,7 +340,7 @@ static inline int get_freepage_migratetype(struct page *page)
*/
static inline int put_page_testzero(struct page *page)
{
- VM_BUG_ON_PAGE(atomic_read(&page->_count) == 0, page);
+ VM_BUG(atomic_read(&page->_count) == 0, "%pZp", page);
return atomic_dec_and_test(&page->_count);
}

@@ -404,7 +404,7 @@ extern void kvfree(const void *addr);
static inline void compound_lock(struct page *page)
{
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
- VM_BUG_ON_PAGE(PageSlab(page), page);
+ VM_BUG(PageSlab(page), "%pZp", page);
bit_spin_lock(PG_compound_lock, &page->flags);
#endif
}
@@ -412,7 +412,7 @@ static inline void compound_lock(struct page *page)
static inline void compound_unlock(struct page *page)
{
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
- VM_BUG_ON_PAGE(PageSlab(page), page);
+ VM_BUG(PageSlab(page), "%pZp", page);
bit_spin_unlock(PG_compound_lock, &page->flags);
#endif
}
@@ -448,7 +448,7 @@ static inline void page_mapcount_reset(struct page *page)

static inline int page_mapcount(struct page *page)
{
- VM_BUG_ON_PAGE(PageSlab(page), page);
+ VM_BUG(PageSlab(page), "%pZp", page);
return atomic_read(&page->_mapcount) + 1;
}

@@ -472,7 +472,7 @@ static inline bool __compound_tail_refcounted(struct page *page)
*/
static inline bool compound_tail_refcounted(struct page *page)
{
- VM_BUG_ON_PAGE(!PageHead(page), page);
+ VM_BUG(!PageHead(page), "%pZp", page);
return __compound_tail_refcounted(page);
}

@@ -481,9 +481,9 @@ static inline void get_huge_page_tail(struct page *page)
/*
* __split_huge_page_refcount() cannot run from under us.
*/
- VM_BUG_ON_PAGE(!PageTail(page), page);
- VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
- VM_BUG_ON_PAGE(atomic_read(&page->_count) != 0, page);
+ VM_BUG(!PageTail(page), "%pZp", page);
+ VM_BUG(page_mapcount(page) < 0, "%pZp", page);
+ VM_BUG(atomic_read(&page->_count) != 0, "%pZp", page);
if (compound_tail_refcounted(page->first_page))
atomic_inc(&page->_mapcount);
}
@@ -499,7 +499,7 @@ static inline void get_page(struct page *page)
* Getting a normal page or the head of a compound page
* requires to already have an elevated page->_count.
*/
- VM_BUG_ON_PAGE(atomic_read(&page->_count) <= 0, page);
+ VM_BUG(atomic_read(&page->_count) <= 0, "%pZp", page);
atomic_inc(&page->_count);
}

@@ -1441,7 +1441,7 @@ static inline bool ptlock_init(struct page *page)
* slab code uses page->slab_cache and page->first_page (for tail
* pages), which share storage with page->ptl.
*/
- VM_BUG_ON_PAGE(*(unsigned long *)&page->ptl, page);
+ VM_BUG(*(unsigned long *)&page->ptl, "%pZp", page);
if (!ptlock_alloc(page))
return false;
spin_lock_init(ptlock_ptr(page));
@@ -1538,7 +1538,7 @@ static inline bool pgtable_pmd_page_ctor(struct page *page)
static inline void pgtable_pmd_page_dtor(struct page *page)
{
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
- VM_BUG_ON_PAGE(page->pmd_huge_pte, page);
+ VM_BUG(page->pmd_huge_pte, "%pZp", page);
#endif
ptlock_free(page);
}
diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h
index 42f41e3..f43f868 100644
--- a/include/linux/mmdebug.h
+++ b/include/linux/mmdebug.h
@@ -20,13 +20,6 @@ char *format_mm(const struct mm_struct *mm, char *buf, char *end);
} \
} while (0)
#define VM_BUG_ON(cond) VM_BUG(cond, "%s\n", __stringify(cond))
-#define VM_BUG_ON_PAGE(cond, page) \
- do { \
- if (unlikely(cond)) { \
- pr_emerg("%pZp", page); \
- BUG(); \
- } \
- } while (0)
#define VM_BUG_ON_VMA(cond, vma) \
do { \
if (unlikely(cond)) { \
@@ -55,7 +48,6 @@ static char *format_mm(const struct mm_struct *mm, char *buf, char *end)
}
#define VM_BUG(cond, fmt...) BUILD_BUG_ON_INVALID(cond)
#define VM_BUG_ON(cond) BUILD_BUG_ON_INVALID(cond)
-#define VM_BUG_ON_PAGE(cond, page) VM_BUG_ON(cond)
#define VM_BUG_ON_VMA(cond, vma) VM_BUG_ON(cond)
#define VM_BUG_ON_MM(cond, mm) VM_BUG_ON(cond)
#define VM_WARN_ON(cond) BUILD_BUG_ON_INVALID(cond)
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 91b7f9b..f1a18ad 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -139,13 +139,13 @@ enum pageflags {
#define PF_HEAD(page, enforce) compound_head(page)
#define PF_NO_TAIL(page, enforce) ({ \
if (enforce) \
- VM_BUG_ON_PAGE(PageTail(page), page); \
+ VM_BUG(PageTail(page), "%pZp", page); \
else \
page = compound_head(page); \
page;})
#define PF_NO_COMPOUND(page, enforce) ({ \
if (enforce) \
- VM_BUG_ON_PAGE(PageCompound(page), page); \
+ VM_BUG(PageCompound(page), "%pZp", page); \
page;})

/*
@@ -429,14 +429,14 @@ static inline int PageUptodate(struct page *page)

static inline void __SetPageUptodate(struct page *page)
{
- VM_BUG_ON_PAGE(PageTail(page), page);
+ VM_BUG(PageTail(page), "%pZp", page);
smp_wmb();
__set_bit(PG_uptodate, &page->flags);
}

static inline void SetPageUptodate(struct page *page)
{
- VM_BUG_ON_PAGE(PageTail(page), page);
+ VM_BUG(PageTail(page), "%pZp", page);
/*
* Memory barrier must be issued before setting the PG_uptodate bit,
* so that all previous stores issued in order to bring the page
@@ -572,7 +572,7 @@ static inline bool page_huge_active(struct page *page)
*/
static inline int PageTransHuge(struct page *page)
{
- VM_BUG_ON_PAGE(PageTail(page), page);
+ VM_BUG(PageTail(page), "%pZp", page);
return PageHead(page);
}

@@ -620,13 +620,13 @@ static inline int PageBuddy(struct page *page)

static inline void __SetPageBuddy(struct page *page)
{
- VM_BUG_ON_PAGE(atomic_read(&page->_mapcount) != -1, page);
+ VM_BUG(atomic_read(&page->_mapcount) != -1, "%pZp", page);
atomic_set(&page->_mapcount, PAGE_BUDDY_MAPCOUNT_VALUE);
}

static inline void __ClearPageBuddy(struct page *page)
{
- VM_BUG_ON_PAGE(!PageBuddy(page), page);
+ VM_BUG(!PageBuddy(page), "%pZp", page);
atomic_set(&page->_mapcount, -1);
}

@@ -639,13 +639,13 @@ static inline int PageBalloon(struct page *page)

static inline void __SetPageBalloon(struct page *page)
{
- VM_BUG_ON_PAGE(atomic_read(&page->_mapcount) != -1, page);
+ VM_BUG(atomic_read(&page->_mapcount) != -1, "%pZp", page);
atomic_set(&page->_mapcount, PAGE_BALLOON_MAPCOUNT_VALUE);
}

static inline void __ClearPageBalloon(struct page *page)
{
- VM_BUG_ON_PAGE(!PageBalloon(page), page);
+ VM_BUG(!PageBalloon(page), "%pZp", page);
atomic_set(&page->_mapcount, -1);
}

@@ -655,25 +655,25 @@ static inline void __ClearPageBalloon(struct page *page)
*/
static inline int PageSlabPfmemalloc(struct page *page)
{
- VM_BUG_ON_PAGE(!PageSlab(page), page);
+ VM_BUG(!PageSlab(page), "%pZp", page);
return PageActive(page);
}

static inline void SetPageSlabPfmemalloc(struct page *page)
{
- VM_BUG_ON_PAGE(!PageSlab(page), page);
+ VM_BUG(!PageSlab(page), "%pZp", page);
SetPageActive(page);
}

static inline void __ClearPageSlabPfmemalloc(struct page *page)
{
- VM_BUG_ON_PAGE(!PageSlab(page), page);
+ VM_BUG(!PageSlab(page), "%pZp", page);
__ClearPageActive(page);
}

static inline void ClearPageSlabPfmemalloc(struct page *page)
{
- VM_BUG_ON_PAGE(!PageSlab(page), page);
+ VM_BUG(!PageSlab(page), "%pZp", page);
ClearPageActive(page);
}

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 7c37907..fa9ba8b 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -157,7 +157,7 @@ static inline int page_cache_get_speculative(struct page *page)
* disabling preempt, and hence no need for the "speculative get" that
* SMP requires.
*/
- VM_BUG_ON_PAGE(page_count(page) == 0, page);
+ VM_BUG(page_count(page) == 0, "%pZp", page);
atomic_inc(&page->_count);

#else
@@ -170,7 +170,7 @@ static inline int page_cache_get_speculative(struct page *page)
return 0;
}
#endif
- VM_BUG_ON_PAGE(PageTail(page), page);
+ VM_BUG(PageTail(page), "%pZp", page);

return 1;
}
@@ -186,14 +186,15 @@ static inline int page_cache_add_speculative(struct page *page, int count)
# ifdef CONFIG_PREEMPT_COUNT
VM_BUG_ON(!in_atomic());
# endif
- VM_BUG_ON_PAGE(page_count(page) == 0, page);
+ VM_BUG(page_count(page) == 0, "%pZp", page);
atomic_add(count, &page->_count);

#else
if (unlikely(!atomic_add_unless(&page->_count, count, 0)))
return 0;
#endif
- VM_BUG_ON_PAGE(PageCompound(page) && page != compound_head(page), page);
+ VM_BUG(PageCompound(page) && page != compound_head(page), "%pZp",
+ page);

return 1;
}
@@ -205,7 +206,7 @@ static inline int page_freeze_refs(struct page *page, int count)

static inline void page_unfreeze_refs(struct page *page, int count)
{
- VM_BUG_ON_PAGE(page_count(page) != 0, page);
+ VM_BUG(page_count(page) != 0, "%pZp", page);
VM_BUG_ON(count == 0);

atomic_set(&page->_count, count);
diff --git a/mm/cleancache.c b/mm/cleancache.c
index 8fc5081..d4d5ce0 100644
--- a/mm/cleancache.c
+++ b/mm/cleancache.c
@@ -185,7 +185,7 @@ int __cleancache_get_page(struct page *page)
goto out;
}

- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
pool_id = page->mapping->host->i_sb->cleancache_poolid;
if (pool_id < 0)
goto out;
@@ -223,7 +223,7 @@ void __cleancache_put_page(struct page *page)
return;
}

- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
pool_id = page->mapping->host->i_sb->cleancache_poolid;
if (pool_id >= 0 &&
cleancache_get_key(page->mapping->host, &key) >= 0) {
@@ -252,7 +252,7 @@ void __cleancache_invalidate_page(struct address_space *mapping,
return;

if (pool_id >= 0) {
- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
if (cleancache_get_key(mapping->host, &key) >= 0) {
cleancache_ops->invalidate_page(pool_id,
key, page->index);
diff --git a/mm/compaction.c b/mm/compaction.c
index e6c4f94..e6c8601 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -800,7 +800,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
if (__isolate_lru_page(page, isolate_mode) != 0)
continue;

- VM_BUG_ON_PAGE(PageTransCompound(page), page);
+ VM_BUG(PageTransCompound(page), "%pZp", page);

/* Successfully isolated */
del_page_from_lru_list(page, lruvec, page_lru(page));
diff --git a/mm/filemap.c b/mm/filemap.c
index 3544844..11a62de 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -462,9 +462,9 @@ int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask)
{
int error;

- VM_BUG_ON_PAGE(!PageLocked(old), old);
- VM_BUG_ON_PAGE(!PageLocked(new), new);
- VM_BUG_ON_PAGE(new->mapping, new);
+ VM_BUG(!PageLocked(old), "%pZp", old);
+ VM_BUG(!PageLocked(new), "%pZp", new);
+ VM_BUG(new->mapping, "%pZp", new);

error = radix_tree_preload(gfp_mask & ~__GFP_HIGHMEM);
if (!error) {
@@ -549,8 +549,8 @@ static int __add_to_page_cache_locked(struct page *page,
struct mem_cgroup *memcg;
int error;

- VM_BUG_ON_PAGE(!PageLocked(page), page);
- VM_BUG_ON_PAGE(PageSwapBacked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
+ VM_BUG(PageSwapBacked(page), "%pZp", page);

if (!huge) {
error = mem_cgroup_try_charge(page, current->mm,
@@ -743,7 +743,7 @@ EXPORT_SYMBOL_GPL(add_page_wait_queue);
void unlock_page(struct page *page)
{
page = compound_head(page);
- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
clear_bit_unlock(PG_locked, &page->flags);
smp_mb__after_atomic();
wake_up_page(page, PG_locked);
@@ -1036,7 +1036,7 @@ repeat:
page_cache_release(page);
goto repeat;
}
- VM_BUG_ON_PAGE(page->index != offset, page);
+ VM_BUG(page->index != offset, "%pZp", page);
}
return page;
}
@@ -1093,7 +1093,7 @@ repeat:
page_cache_release(page);
goto repeat;
}
- VM_BUG_ON_PAGE(page->index != offset, page);
+ VM_BUG(page->index != offset, "%pZp", page);
}

if (page && (fgp_flags & FGP_ACCESSED))
@@ -1914,7 +1914,7 @@ retry_find:
put_page(page);
goto retry_find;
}
- VM_BUG_ON_PAGE(page->index != offset, page);
+ VM_BUG(page->index != offset, "%pZp", page);

/*
* We have a locked page in the page cache, now we need to check
diff --git a/mm/gup.c b/mm/gup.c
index 6297f6b..743648e 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1084,7 +1084,7 @@ static int gup_huge_pmd(pmd_t orig, pmd_t *pmdp, unsigned long addr,
page = head + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
tail = page;
do {
- VM_BUG_ON_PAGE(compound_head(page) != head, page);
+ VM_BUG(compound_head(page) != head, "%pZp", page);
pages[*nr] = page;
(*nr)++;
page++;
@@ -1131,7 +1131,7 @@ static int gup_huge_pud(pud_t orig, pud_t *pudp, unsigned long addr,
page = head + ((addr & ~PUD_MASK) >> PAGE_SHIFT);
tail = page;
do {
- VM_BUG_ON_PAGE(compound_head(page) != head, page);
+ VM_BUG(compound_head(page) != head, "%pZp", page);
pages[*nr] = page;
(*nr)++;
page++;
@@ -1174,7 +1174,7 @@ static int gup_huge_pgd(pgd_t orig, pgd_t *pgdp, unsigned long addr,
page = head + ((addr & ~PGDIR_MASK) >> PAGE_SHIFT);
tail = page;
do {
- VM_BUG_ON_PAGE(compound_head(page) != head, page);
+ VM_BUG(compound_head(page) != head, "%pZp", page);
pages[*nr] = page;
(*nr)++;
page++;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index aca0846..7ba3947 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -724,7 +724,7 @@ static int __do_huge_pmd_anonymous_page(struct mm_struct *mm,
pgtable_t pgtable;
spinlock_t *ptl;

- VM_BUG_ON_PAGE(!PageCompound(page), page);
+ VM_BUG(!PageCompound(page), "%pZp", page);

if (mem_cgroup_try_charge(page, mm, gfp, &memcg))
return VM_FAULT_OOM;
@@ -898,7 +898,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
goto out;
}
src_page = pmd_page(pmd);
- VM_BUG_ON_PAGE(!PageHead(src_page), src_page);
+ VM_BUG(!PageHead(src_page), "%pZp", src_page);
get_page(src_page);
page_dup_rmap(src_page);
add_mm_counter(dst_mm, MM_ANONPAGES, HPAGE_PMD_NR);
@@ -1030,7 +1030,7 @@ static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm,
ptl = pmd_lock(mm, pmd);
if (unlikely(!pmd_same(*pmd, orig_pmd)))
goto out_free_pages;
- VM_BUG_ON_PAGE(!PageHead(page), page);
+ VM_BUG(!PageHead(page), "%pZp", page);

pmdp_clear_flush_notify(vma, haddr, pmd);
/* leave pmd empty until pte is filled */
@@ -1102,7 +1102,7 @@ int do_huge_pmd_wp_page(struct mm_struct *mm, struct vm_area_struct *vma,
goto out_unlock;

page = pmd_page(orig_pmd);
- VM_BUG_ON_PAGE(!PageCompound(page) || !PageHead(page), page);
+ VM_BUG(!PageCompound(page) || !PageHead(page), "%pZp", page);
if (page_mapcount(page) == 1) {
pmd_t entry;
entry = pmd_mkyoung(orig_pmd);
@@ -1185,7 +1185,7 @@ alloc:
add_mm_counter(mm, MM_ANONPAGES, HPAGE_PMD_NR);
put_huge_zero_page();
} else {
- VM_BUG_ON_PAGE(!PageHead(page), page);
+ VM_BUG(!PageHead(page), "%pZp", page);
page_remove_rmap(page);
put_page(page);
}
@@ -1223,7 +1223,7 @@ struct page *follow_trans_huge_pmd(struct vm_area_struct *vma,
goto out;

page = pmd_page(*pmd);
- VM_BUG_ON_PAGE(!PageHead(page), page);
+ VM_BUG(!PageHead(page), "%pZp", page);
if (flags & FOLL_TOUCH) {
pmd_t _pmd;
/*
@@ -1248,7 +1248,7 @@ struct page *follow_trans_huge_pmd(struct vm_area_struct *vma,
}
}
page += (addr & ~HPAGE_PMD_MASK) >> PAGE_SHIFT;
- VM_BUG_ON_PAGE(!PageCompound(page), page);
+ VM_BUG(!PageCompound(page), "%pZp", page);
if (flags & FOLL_GET)
get_page_foll(page);

@@ -1401,7 +1401,7 @@ int madvise_free_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,

/* No hugepage in swapcache */
page = pmd_page(orig_pmd);
- VM_BUG_ON_PAGE(PageSwapCache(page), page);
+ VM_BUG(PageSwapCache(page), "%pZp", page);

orig_pmd = pmd_mkold(orig_pmd);
orig_pmd = pmd_mkclean(orig_pmd);
@@ -1442,9 +1442,9 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
} else {
page = pmd_page(orig_pmd);
page_remove_rmap(page);
- VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
+ VM_BUG(page_mapcount(page) < 0, "%pZp", page);
add_mm_counter(tlb->mm, MM_ANONPAGES, -HPAGE_PMD_NR);
- VM_BUG_ON_PAGE(!PageHead(page), page);
+ VM_BUG(!PageHead(page), "%pZp", page);
atomic_long_dec(&tlb->mm->nr_ptes);
spin_unlock(ptl);
tlb_remove_page(tlb, page);
@@ -2190,9 +2190,9 @@ static int __collapse_huge_page_isolate(struct vm_area_struct *vma,
if (unlikely(!page))
goto out;

- VM_BUG_ON_PAGE(PageCompound(page), page);
- VM_BUG_ON_PAGE(!PageAnon(page), page);
- VM_BUG_ON_PAGE(!PageSwapBacked(page), page);
+ VM_BUG(PageCompound(page), "%pZp", page);
+ VM_BUG(!PageAnon(page), "%pZp", page);
+ VM_BUG(!PageSwapBacked(page), "%pZp", page);

/*
* We can do it before isolate_lru_page because the
@@ -2235,8 +2235,8 @@ static int __collapse_huge_page_isolate(struct vm_area_struct *vma,
}
/* 0 stands for page_is_file_cache(page) == false */
inc_zone_page_state(page, NR_ISOLATED_ANON + 0);
- VM_BUG_ON_PAGE(!PageLocked(page), page);
- VM_BUG_ON_PAGE(PageLRU(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
+ VM_BUG(PageLRU(page), "%pZp", page);

/* If there is no mapped pte young don't collapse the page */
if (pte_young(pteval) || PageReferenced(page) ||
@@ -2278,7 +2278,7 @@ static void __collapse_huge_page_copy(pte_t *pte, struct page *page,
} else {
src_page = pte_page(pteval);
copy_user_highpage(page, src_page, address, vma);
- VM_BUG_ON_PAGE(page_mapcount(src_page) != 1, src_page);
+ VM_BUG(page_mapcount(src_page) != 1, "%pZp", src_page);
release_pte_page(src_page);
/*
* ptl mostly unnecessary, but preempt has to
@@ -2381,7 +2381,7 @@ khugepaged_alloc_page(struct page **hpage, gfp_t gfp, struct mm_struct *mm,
struct vm_area_struct *vma, unsigned long address,
int node)
{
- VM_BUG_ON_PAGE(*hpage, *hpage);
+ VM_BUG(*hpage, "%pZp", *hpage);

/*
* Before allocating the hugepage, release the mmap_sem read lock.
@@ -2655,7 +2655,7 @@ static int khugepaged_scan_pmd(struct mm_struct *mm,
if (khugepaged_scan_abort(node))
goto out_unmap;
khugepaged_node_load[node]++;
- VM_BUG_ON_PAGE(PageCompound(page), page);
+ VM_BUG(PageCompound(page), "%pZp", page);
if (!PageLRU(page) || PageLocked(page) || !PageAnon(page))
goto out_unmap;
/*
@@ -2955,7 +2955,7 @@ again:
return;
}
page = pmd_page(*pmd);
- VM_BUG_ON_PAGE(!page_count(page), page);
+ VM_BUG(!page_count(page), "%pZp", page);
get_page(page);
spin_unlock(ptl);
mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index e8c92ae..584b516 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -901,7 +901,7 @@ static void update_and_free_page(struct hstate *h, struct page *page)
1 << PG_active | 1 << PG_private |
1 << PG_writeback);
}
- VM_BUG_ON_PAGE(hugetlb_cgroup_from_page(page), page);
+ VM_BUG(hugetlb_cgroup_from_page(page), "%pZp", page);
set_compound_page_dtor(page, NULL);
set_page_refcounted(page);
if (hstate_is_gigantic(h)) {
@@ -932,20 +932,20 @@ struct hstate *size_to_hstate(unsigned long size)
*/
bool page_huge_active(struct page *page)
{
- VM_BUG_ON_PAGE(!PageHuge(page), page);
+ VM_BUG(!PageHuge(page), "%pZp", page);
return PageHead(page) && PagePrivate(&page[1]);
}

/* never called for tail page */
static void set_page_huge_active(struct page *page)
{
- VM_BUG_ON_PAGE(!PageHeadHuge(page), page);
+ VM_BUG(!PageHeadHuge(page), "%pZp", page);
SetPagePrivate(&page[1]);
}

static void clear_page_huge_active(struct page *page)
{
- VM_BUG_ON_PAGE(!PageHeadHuge(page), page);
+ VM_BUG(!PageHeadHuge(page), "%pZp", page);
ClearPagePrivate(&page[1]);
}

@@ -1373,7 +1373,7 @@ retry:
* no users -- drop the buddy allocator's reference.
*/
put_page_testzero(page);
- VM_BUG_ON_PAGE(page_count(page), page);
+ VM_BUG(page_count(page), "%pZp", page);
enqueue_huge_page(h, page);
}
free:
@@ -3934,7 +3934,7 @@ bool isolate_huge_page(struct page *page, struct list_head *list)
{
bool ret = true;

- VM_BUG_ON_PAGE(!PageHead(page), page);
+ VM_BUG(!PageHead(page), "%pZp", page);
spin_lock(&hugetlb_lock);
if (!page_huge_active(page) || !get_page_unless_zero(page)) {
ret = false;
@@ -3949,7 +3949,7 @@ unlock:

void putback_active_hugepage(struct page *page)
{
- VM_BUG_ON_PAGE(!PageHead(page), page);
+ VM_BUG(!PageHead(page), "%pZp", page);
spin_lock(&hugetlb_lock);
set_page_huge_active(page);
list_move_tail(&page->lru, &(page_hstate(page))->hugepage_activelist);
diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index 6e00574..9df90f5 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -403,7 +403,7 @@ void hugetlb_cgroup_migrate(struct page *oldhpage, struct page *newhpage)
if (hugetlb_cgroup_disabled())
return;

- VM_BUG_ON_PAGE(!PageHuge(oldhpage), oldhpage);
+ VM_BUG(!PageHuge(oldhpage), "%pZp", oldhpage);
spin_lock(&hugetlb_lock);
h_cg = hugetlb_cgroup_from_page(oldhpage);
set_hugetlb_cgroup(oldhpage, NULL);
diff --git a/mm/internal.h b/mm/internal.h
index a25e359..0fefe0b 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -42,8 +42,8 @@ static inline unsigned long ra_submit(struct file_ra_state *ra,
*/
static inline void set_page_refcounted(struct page *page)
{
- VM_BUG_ON_PAGE(PageTail(page), page);
- VM_BUG_ON_PAGE(atomic_read(&page->_count), page);
+ VM_BUG(PageTail(page), "%pZp", page);
+ VM_BUG(atomic_read(&page->_count), "%pZp", page);
set_page_count(page, 1);
}

@@ -61,7 +61,7 @@ static inline void __get_page_tail_foll(struct page *page,
* speculative page access (like in
* page_cache_get_speculative()) on tail pages.
*/
- VM_BUG_ON_PAGE(atomic_read(&page->first_page->_count) <= 0, page);
+ VM_BUG(atomic_read(&page->first_page->_count) <= 0, "%pZp", page);
if (get_page_head)
atomic_inc(&page->first_page->_count);
get_huge_page_tail(page);
@@ -86,7 +86,7 @@ static inline void get_page_foll(struct page *page)
* Getting a normal page or the head of a compound page
* requires to already have an elevated page->_count.
*/
- VM_BUG_ON_PAGE(atomic_read(&page->_count) <= 0, page);
+ VM_BUG(atomic_read(&page->_count) <= 0, "%pZp", page);
atomic_inc(&page->_count);
}
}
diff --git a/mm/ksm.c b/mm/ksm.c
index bc7be0e..040185f 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1897,13 +1897,13 @@ int rmap_walk_ksm(struct page *page, struct rmap_walk_control *rwc)
int ret = SWAP_AGAIN;
int search_new_forks = 0;

- VM_BUG_ON_PAGE(!PageKsm(page), page);
+ VM_BUG(!PageKsm(page), "%pZp", page);

/*
* Rely on the page lock to protect against concurrent modifications
* to that page's node of the stable tree.
*/
- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);

stable_node = page_stable_node(page);
if (!stable_node)
@@ -1957,13 +1957,14 @@ void ksm_migrate_page(struct page *newpage, struct page *oldpage)
{
struct stable_node *stable_node;

- VM_BUG_ON_PAGE(!PageLocked(oldpage), oldpage);
- VM_BUG_ON_PAGE(!PageLocked(newpage), newpage);
- VM_BUG_ON_PAGE(newpage->mapping != oldpage->mapping, newpage);
+ VM_BUG(!PageLocked(oldpage), "%pZp", oldpage);
+ VM_BUG(!PageLocked(newpage), "%pZp", newpage);
+ VM_BUG(newpage->mapping != oldpage->mapping, "%pZp", newpage);

stable_node = page_stable_node(newpage);
if (stable_node) {
- VM_BUG_ON_PAGE(stable_node->kpfn != page_to_pfn(oldpage), oldpage);
+ VM_BUG(stable_node->kpfn != page_to_pfn(oldpage), "%pZp",
+ oldpage);
stable_node->kpfn = page_to_pfn(newpage);
/*
* newpage->mapping was set in advance; now we need smp_wmb()
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 14c2f20..6ae7c39 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2365,7 +2365,7 @@ struct mem_cgroup *try_get_mem_cgroup_from_page(struct page *page)
unsigned short id;
swp_entry_t ent;

- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);

memcg = page->mem_cgroup;
if (memcg) {
@@ -2407,7 +2407,7 @@ static void unlock_page_lru(struct page *page, int isolated)
struct lruvec *lruvec;

lruvec = mem_cgroup_page_lruvec(page, zone);
- VM_BUG_ON_PAGE(PageLRU(page), page);
+ VM_BUG(PageLRU(page), "%pZp", page);
SetPageLRU(page);
add_page_to_lru_list(page, lruvec, page_lru(page));
}
@@ -2419,7 +2419,7 @@ static void commit_charge(struct page *page, struct mem_cgroup *memcg,
{
int isolated;

- VM_BUG_ON_PAGE(page->mem_cgroup, page);
+ VM_BUG(page->mem_cgroup, "%pZp", page);

/*
* In some cases, SwapCache and FUSE(splice_buf->radixtree), the page
@@ -2726,7 +2726,7 @@ void __memcg_kmem_uncharge_pages(struct page *page, int order)
if (!memcg)
return;

- VM_BUG_ON_PAGE(mem_cgroup_is_root(memcg), page);
+ VM_BUG(mem_cgroup_is_root(memcg), "%pZp", page);

memcg_uncharge_kmem(memcg, 1 << order);
page->mem_cgroup = NULL;
@@ -4748,7 +4748,7 @@ static int mem_cgroup_move_account(struct page *page,
int ret;

VM_BUG_ON(from == to);
- VM_BUG_ON_PAGE(PageLRU(page), page);
+ VM_BUG(PageLRU(page), "%pZp", page);
/*
* The page is isolated from LRU. So, collapse function
* will not handle this page. But page splitting can happen.
@@ -4864,7 +4864,7 @@ static enum mc_target_type get_mctgt_type_thp(struct vm_area_struct *vma,
enum mc_target_type ret = MC_TARGET_NONE;

page = pmd_page(pmd);
- VM_BUG_ON_PAGE(!page || !PageHead(page), page);
+ VM_BUG(!page || !PageHead(page), "%pZp", page);
if (!(mc.flags & MOVE_ANON))
return ret;
if (page->mem_cgroup == mc.from) {
@@ -5479,7 +5479,7 @@ int mem_cgroup_try_charge(struct page *page, struct mm_struct *mm,

if (PageTransHuge(page)) {
nr_pages <<= compound_order(page);
- VM_BUG_ON_PAGE(!PageTransHuge(page), page);
+ VM_BUG(!PageTransHuge(page), "%pZp", page);
}

if (do_swap_account && PageSwapCache(page))
@@ -5521,8 +5521,8 @@ void mem_cgroup_commit_charge(struct page *page, struct mem_cgroup *memcg,
{
unsigned int nr_pages = 1;

- VM_BUG_ON_PAGE(!page->mapping, page);
- VM_BUG_ON_PAGE(PageLRU(page) && !lrucare, page);
+ VM_BUG(!page->mapping, "%pZp", page);
+ VM_BUG(PageLRU(page) && !lrucare, "%pZp", page);

if (mem_cgroup_disabled())
return;
@@ -5538,7 +5538,7 @@ void mem_cgroup_commit_charge(struct page *page, struct mem_cgroup *memcg,

if (PageTransHuge(page)) {
nr_pages <<= compound_order(page);
- VM_BUG_ON_PAGE(!PageTransHuge(page), page);
+ VM_BUG(!PageTransHuge(page), "%pZp", page);
}

local_irq_disable();
@@ -5580,7 +5580,7 @@ void mem_cgroup_cancel_charge(struct page *page, struct mem_cgroup *memcg)

if (PageTransHuge(page)) {
nr_pages <<= compound_order(page);
- VM_BUG_ON_PAGE(!PageTransHuge(page), page);
+ VM_BUG(!PageTransHuge(page), "%pZp", page);
}

cancel_charge(memcg, nr_pages);
@@ -5630,8 +5630,8 @@ static void uncharge_list(struct list_head *page_list)
page = list_entry(next, struct page, lru);
next = page->lru.next;

- VM_BUG_ON_PAGE(PageLRU(page), page);
- VM_BUG_ON_PAGE(page_count(page), page);
+ VM_BUG(PageLRU(page), "%pZp", page);
+ VM_BUG(page_count(page), "%pZp", page);

if (!page->mem_cgroup)
continue;
@@ -5653,7 +5653,7 @@ static void uncharge_list(struct list_head *page_list)

if (PageTransHuge(page)) {
nr_pages <<= compound_order(page);
- VM_BUG_ON_PAGE(!PageTransHuge(page), page);
+ VM_BUG(!PageTransHuge(page), "%pZp", page);
nr_huge += nr_pages;
}

@@ -5724,13 +5724,13 @@ void mem_cgroup_migrate(struct page *oldpage, struct page *newpage,
struct mem_cgroup *memcg;
int isolated;

- VM_BUG_ON_PAGE(!PageLocked(oldpage), oldpage);
- VM_BUG_ON_PAGE(!PageLocked(newpage), newpage);
- VM_BUG_ON_PAGE(!lrucare && PageLRU(oldpage), oldpage);
- VM_BUG_ON_PAGE(!lrucare && PageLRU(newpage), newpage);
- VM_BUG_ON_PAGE(PageAnon(oldpage) != PageAnon(newpage), newpage);
- VM_BUG_ON_PAGE(PageTransHuge(oldpage) != PageTransHuge(newpage),
- newpage);
+ VM_BUG(!PageLocked(oldpage), "%pZp", oldpage);
+ VM_BUG(!PageLocked(newpage), "%pZp", newpage);
+ VM_BUG(!lrucare && PageLRU(oldpage), "%pZp", oldpage);
+ VM_BUG(!lrucare && PageLRU(newpage), "%pZp", newpage);
+ VM_BUG(PageAnon(oldpage) != PageAnon(newpage), "%pZp", newpage);
+ VM_BUG(PageTransHuge(oldpage) != PageTransHuge(newpage), "%pZp",
+ newpage);

if (mem_cgroup_disabled())
return;
@@ -5812,8 +5812,8 @@ void mem_cgroup_swapout(struct page *page, swp_entry_t entry)
struct mem_cgroup *memcg;
unsigned short oldid;

- VM_BUG_ON_PAGE(PageLRU(page), page);
- VM_BUG_ON_PAGE(page_count(page), page);
+ VM_BUG(PageLRU(page), "%pZp", page);
+ VM_BUG(page_count(page), "%pZp", page);

if (!do_swap_account)
return;
@@ -5825,7 +5825,7 @@ void mem_cgroup_swapout(struct page *page, swp_entry_t entry)
return;

oldid = swap_cgroup_record(entry, mem_cgroup_id(memcg));
- VM_BUG_ON_PAGE(oldid, page);
+ VM_BUG(oldid, "%pZp", page);
mem_cgroup_swap_statistics(memcg, true);

page->mem_cgroup = NULL;
diff --git a/mm/memory.c b/mm/memory.c
index 6e5d4bd..dd509d9 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -302,7 +302,7 @@ int __tlb_remove_page(struct mmu_gather *tlb, struct page *page)
return 0;
batch = tlb->active;
}
- VM_BUG_ON_PAGE(batch->nr > batch->max, page);
+ VM_BUG(batch->nr > batch->max, "%pZp", page);

return batch->max - batch->nr;
}
@@ -1977,7 +1977,7 @@ static int do_page_mkwrite(struct vm_area_struct *vma, struct page *page,
}
ret |= VM_FAULT_LOCKED;
} else
- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
return ret;
}

@@ -2020,7 +2020,7 @@ static inline int wp_page_reuse(struct mm_struct *mm,
lock_page(page);

dirtied = set_page_dirty(page);
- VM_BUG_ON_PAGE(PageAnon(page), page);
+ VM_BUG(PageAnon(page), "%pZp", page);
mapping = page->mapping;
unlock_page(page);
page_cache_release(page);
@@ -2763,7 +2763,7 @@ static int __do_fault(struct vm_area_struct *vma, unsigned long address,
if (unlikely(!(ret & VM_FAULT_LOCKED)))
lock_page(vmf.page);
else
- VM_BUG_ON_PAGE(!PageLocked(vmf.page), vmf.page);
+ VM_BUG(!PageLocked(vmf.page), "%pZp", vmf.page);

out:
*page = vmf.page;
diff --git a/mm/migrate.c b/mm/migrate.c
index 022adc2..2693888 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -500,7 +500,7 @@ void migrate_page_copy(struct page *newpage, struct page *page)
if (PageUptodate(page))
SetPageUptodate(newpage);
if (TestClearPageActive(page)) {
- VM_BUG_ON_PAGE(PageUnevictable(page), page);
+ VM_BUG(PageUnevictable(page), "%pZp", page);
SetPageActive(newpage);
} else if (TestClearPageUnevictable(page))
SetPageUnevictable(newpage);
@@ -869,7 +869,7 @@ static int __unmap_and_move(struct page *page, struct page *newpage,
* free the metadata, so the page can be freed.
*/
if (!page->mapping) {
- VM_BUG_ON_PAGE(PageAnon(page), page);
+ VM_BUG(PageAnon(page), "%pZp", page);
if (page_has_private(page)) {
try_to_free_buffers(page);
goto out_unlock;
@@ -1606,7 +1606,7 @@ static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page)
{
int page_lru;

- VM_BUG_ON_PAGE(compound_order(page) && !PageTransHuge(page), page);
+ VM_BUG(compound_order(page) && !PageTransHuge(page), "%pZp", page);

/* Avoid migrating to a node that is nearly full */
if (!migrate_balanced_pgdat(pgdat, 1UL << compound_order(page)))
diff --git a/mm/mlock.c b/mm/mlock.c
index 6fd2cf1..54269cd 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -232,8 +232,8 @@ static int __mlock_posix_error_return(long retval)
static bool __putback_lru_fast_prepare(struct page *page, struct pagevec *pvec,
int *pgrescued)
{
- VM_BUG_ON_PAGE(PageLRU(page), page);
- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(PageLRU(page), "%pZp", page);
+ VM_BUG(!PageLocked(page), "%pZp", page);

if (page_mapcount(page) <= 1 && page_evictable(page)) {
pagevec_add(pvec, page);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 4887731..2cabcaa 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -525,7 +525,7 @@ static inline int page_is_buddy(struct page *page, struct page *buddy,
if (page_zone_id(page) != page_zone_id(buddy))
return 0;

- VM_BUG_ON_PAGE(page_count(buddy) != 0, buddy);
+ VM_BUG(page_count(buddy) != 0, "%pZp", buddy);

return 1;
}
@@ -539,7 +539,7 @@ static inline int page_is_buddy(struct page *page, struct page *buddy,
if (page_zone_id(page) != page_zone_id(buddy))
return 0;

- VM_BUG_ON_PAGE(page_count(buddy) != 0, buddy);
+ VM_BUG(page_count(buddy) != 0, "%pZp", buddy);

return 1;
}
@@ -583,7 +583,7 @@ static inline void __free_one_page(struct page *page,
int max_order = MAX_ORDER;

VM_BUG_ON(!zone_is_initialized(zone));
- VM_BUG_ON_PAGE(page->flags & PAGE_FLAGS_CHECK_AT_PREP, page);
+ VM_BUG(page->flags & PAGE_FLAGS_CHECK_AT_PREP, "%pZp", page);

VM_BUG_ON(migratetype == -1);
if (is_migrate_isolate(migratetype)) {
@@ -600,8 +600,8 @@ static inline void __free_one_page(struct page *page,

page_idx = pfn & ((1 << max_order) - 1);

- VM_BUG_ON_PAGE(page_idx & ((1 << order) - 1), page);
- VM_BUG_ON_PAGE(bad_range(zone, page), page);
+ VM_BUG(page_idx & ((1 << order) - 1), "%pZp", page);
+ VM_BUG(bad_range(zone, page), "%pZp", page);

while (order < max_order - 1) {
buddy_idx = __find_buddy_index(page_idx, order);
@@ -790,8 +790,8 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
bool compound = PageCompound(page);
int i, bad = 0;

- VM_BUG_ON_PAGE(PageTail(page), page);
- VM_BUG_ON_PAGE(compound && compound_order(page) != order, page);
+ VM_BUG(PageTail(page), "%pZp", page);
+ VM_BUG(compound && compound_order(page) != order, "%pZp", page);

trace_mm_page_free(page, order);
kmemcheck_free_shadow(page, order);
@@ -914,7 +914,7 @@ static inline void expand(struct zone *zone, struct page *page,
area--;
high--;
size >>= 1;
- VM_BUG_ON_PAGE(bad_range(zone, &page[size]), &page[size]);
+ VM_BUG(bad_range(zone, &page[size]), "%pZp", &page[size]);

if (IS_ENABLED(CONFIG_DEBUG_PAGEALLOC) &&
debug_guardpage_enabled() &&
@@ -1086,7 +1086,7 @@ int move_freepages(struct zone *zone,

for (page = start_page; page <= end_page;) {
/* Make sure we are not inadvertently changing nodes */
- VM_BUG_ON_PAGE(page_to_nid(page) != zone_to_nid(zone), page);
+ VM_BUG(page_to_nid(page) != zone_to_nid(zone), "%pZp", page);

if (!pfn_valid_within(page_to_pfn(page))) {
page++;
@@ -1611,8 +1611,8 @@ void split_page(struct page *page, unsigned int order)
{
int i;

- VM_BUG_ON_PAGE(PageCompound(page), page);
- VM_BUG_ON_PAGE(!page_count(page), page);
+ VM_BUG(PageCompound(page), "%pZp", page);
+ VM_BUG(!page_count(page), "%pZp", page);

#ifdef CONFIG_KMEMCHECK
/*
@@ -1764,7 +1764,7 @@ struct page *buffered_rmqueue(struct zone *preferred_zone,
zone_statistics(preferred_zone, zone, gfp_flags);
local_irq_restore(flags);

- VM_BUG_ON_PAGE(bad_range(zone, page), page);
+ VM_BUG(bad_range(zone, page), "%pZp", page);
return page;

failed:
@@ -6210,7 +6210,7 @@ void set_pfnblock_flags_mask(struct page *page, unsigned long flags,
word_bitidx = bitidx / BITS_PER_LONG;
bitidx &= (BITS_PER_LONG-1);

- VM_BUG_ON_PAGE(!zone_spans_pfn(zone, pfn), page);
+ VM_BUG(!zone_spans_pfn(zone, pfn), "%pZp", page);

bitidx += end_bitidx;
mask <<= (BITS_PER_LONG - bitidx - 1);
diff --git a/mm/page_io.c b/mm/page_io.c
index 6424869..deea5be 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -331,8 +331,8 @@ int swap_readpage(struct page *page)
int ret = 0;
struct swap_info_struct *sis = page_swap_info(page);

- VM_BUG_ON_PAGE(!PageLocked(page), page);
- VM_BUG_ON_PAGE(PageUptodate(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
+ VM_BUG(PageUptodate(page), "%pZp", page);
if (frontswap_load(page) == 0) {
SetPageUptodate(page);
unlock_page(page);
diff --git a/mm/rmap.c b/mm/rmap.c
index dad23a4..f8a6bca 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -971,9 +971,9 @@ void page_move_anon_rmap(struct page *page,
{
struct anon_vma *anon_vma = vma->anon_vma;

- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
VM_BUG_ON_VMA(!anon_vma, vma);
- VM_BUG_ON_PAGE(page->index != linear_page_index(vma, address), page);
+ VM_BUG(page->index != linear_page_index(vma, address), "%pZp", page);

anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
page->mapping = (struct address_space *) anon_vma;
@@ -1078,7 +1078,7 @@ void do_page_add_anon_rmap(struct page *page,
if (unlikely(PageKsm(page)))
return;

- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
/* address might be in next vma when migration races vma_adjust */
if (first)
__page_set_anon_rmap(page, vma, address, exclusive);
@@ -1274,7 +1274,7 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
pte_t swp_pte;

if (flags & TTU_FREE) {
- VM_BUG_ON_PAGE(PageSwapCache(page), page);
+ VM_BUG(PageSwapCache(page), "%pZp", page);
if (!dirty && !PageDirty(page)) {
/* It's a freeable page by MADV_FREE */
dec_mm_counter(mm, MM_ANONPAGES);
@@ -1407,7 +1407,7 @@ int try_to_unmap(struct page *page, enum ttu_flags flags)
.anon_lock = page_lock_anon_vma_read,
};

- VM_BUG_ON_PAGE(!PageHuge(page) && PageTransHuge(page), page);
+ VM_BUG(!PageHuge(page) && PageTransHuge(page), "%pZp", page);

/*
* During exec, a temporary VMA is setup and later moved.
@@ -1453,7 +1453,7 @@ int try_to_munlock(struct page *page)

};

- VM_BUG_ON_PAGE(!PageLocked(page) || PageLRU(page), page);
+ VM_BUG(!PageLocked(page) || PageLRU(page), "%pZp", page);

ret = rmap_walk(page, &rwc);
return ret;
@@ -1559,7 +1559,7 @@ static int rmap_walk_file(struct page *page, struct rmap_walk_control *rwc)
* structure at mapping cannot be freed and reused yet,
* so we can safely take mapping->i_mmap_rwsem.
*/
- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);

if (!mapping)
return ret;
diff --git a/mm/shmem.c b/mm/shmem.c
index 86b8929..bf494cf 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -295,8 +295,8 @@ static int shmem_add_to_page_cache(struct page *page,
{
int error;

- VM_BUG_ON_PAGE(!PageLocked(page), page);
- VM_BUG_ON_PAGE(!PageSwapBacked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
+ VM_BUG(!PageSwapBacked(page), "%pZp", page);

page_cache_get(page);
page->mapping = mapping;
@@ -436,7 +436,8 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend,
continue;
if (!unfalloc || !PageUptodate(page)) {
if (page->mapping == mapping) {
- VM_BUG_ON_PAGE(PageWriteback(page), page);
+ VM_BUG(PageWriteback(page), "%pZp",
+ page);
truncate_inode_page(mapping, page);
}
}
@@ -513,7 +514,8 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend,
lock_page(page);
if (!unfalloc || !PageUptodate(page)) {
if (page->mapping == mapping) {
- VM_BUG_ON_PAGE(PageWriteback(page), page);
+ VM_BUG(PageWriteback(page), "%pZp",
+ page);
truncate_inode_page(mapping, page);
} else {
/* Page was replaced by swap: retry */
diff --git a/mm/slub.c b/mm/slub.c
index a98b3d1..61c5f54 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -338,13 +338,13 @@ static inline int oo_objects(struct kmem_cache_order_objects x)
*/
static __always_inline void slab_lock(struct page *page)
{
- VM_BUG_ON_PAGE(PageTail(page), page);
+ VM_BUG(PageTail(page), "%pZp", page);
bit_spin_lock(PG_locked, &page->flags);
}

static __always_inline void slab_unlock(struct page *page)
{
- VM_BUG_ON_PAGE(PageTail(page), page);
+ VM_BUG(PageTail(page), "%pZp", page);
__bit_spin_unlock(PG_locked, &page->flags);
}

diff --git a/mm/swap.c b/mm/swap.c
index 8773de0..47af078 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -59,7 +59,7 @@ static void __page_cache_release(struct page *page)

spin_lock_irqsave(&zone->lru_lock, flags);
lruvec = mem_cgroup_page_lruvec(page, zone);
- VM_BUG_ON_PAGE(!PageLRU(page), page);
+ VM_BUG(!PageLRU(page), "%pZp", page);
__ClearPageLRU(page);
del_page_from_lru_list(page, lruvec, page_off_lru(page));
spin_unlock_irqrestore(&zone->lru_lock, flags);
@@ -131,8 +131,8 @@ void put_unrefcounted_compound_page(struct page *page_head, struct page *page)
* __split_huge_page_refcount cannot race
* here, see the comment above this function.
*/
- VM_BUG_ON_PAGE(!PageHead(page_head), page_head);
- VM_BUG_ON_PAGE(page_mapcount(page) != 0, page);
+ VM_BUG(!PageHead(page_head), "%pZp", page_head);
+ VM_BUG(page_mapcount(page) != 0, "%pZp", page);
if (put_page_testzero(page_head)) {
/*
* If this is the tail of a slab THP page,
@@ -148,7 +148,7 @@ void put_unrefcounted_compound_page(struct page *page_head, struct page *page)
* not go away until the compound page enters
* the buddy allocator.
*/
- VM_BUG_ON_PAGE(PageSlab(page_head), page_head);
+ VM_BUG(PageSlab(page_head), "%pZp", page_head);
__put_compound_page(page_head);
}
} else
@@ -202,7 +202,7 @@ out_put_single:
__put_single_page(page);
return;
}
- VM_BUG_ON_PAGE(page_head != page->first_page, page);
+ VM_BUG(page_head != page->first_page, "%pZp", page);
/*
* We can release the refcount taken by
* get_page_unless_zero() now that
@@ -210,12 +210,13 @@ out_put_single:
* compound_lock.
*/
if (put_page_testzero(page_head))
- VM_BUG_ON_PAGE(1, page_head);
+ VM_BUG(1, "%pZp", page_head);
/* __split_huge_page_refcount will wait now */
- VM_BUG_ON_PAGE(page_mapcount(page) <= 0, page);
+ VM_BUG(page_mapcount(page) <= 0, "%pZp", page);
atomic_dec(&page->_mapcount);
- VM_BUG_ON_PAGE(atomic_read(&page_head->_count) <= 0, page_head);
- VM_BUG_ON_PAGE(atomic_read(&page->_count) != 0, page);
+ VM_BUG(atomic_read(&page_head->_count) <= 0, "%pZp",
+ page_head);
+ VM_BUG(atomic_read(&page->_count) != 0, "%pZp", page);
compound_unlock_irqrestore(page_head, flags);

if (put_page_testzero(page_head)) {
@@ -226,7 +227,7 @@ out_put_single:
}
} else {
/* @page_head is a dangling pointer */
- VM_BUG_ON_PAGE(PageTail(page), page);
+ VM_BUG(PageTail(page), "%pZp", page);
goto out_put_single;
}
}
@@ -306,7 +307,7 @@ bool __get_page_tail(struct page *page)
* page. __split_huge_page_refcount
* cannot race here.
*/
- VM_BUG_ON_PAGE(!PageHead(page_head), page_head);
+ VM_BUG(!PageHead(page_head), "%pZp", page_head);
__get_page_tail_foll(page, true);
return true;
} else {
@@ -668,8 +669,8 @@ EXPORT_SYMBOL(lru_cache_add_file);
*/
void lru_cache_add(struct page *page)
{
- VM_BUG_ON_PAGE(PageActive(page) && PageUnevictable(page), page);
- VM_BUG_ON_PAGE(PageLRU(page), page);
+ VM_BUG(PageActive(page) && PageUnevictable(page), "%pZp", page);
+ VM_BUG(PageLRU(page), "%pZp", page);
__lru_cache_add(page);
}

@@ -710,7 +711,7 @@ void add_page_to_unevictable_list(struct page *page)
void lru_cache_add_active_or_unevictable(struct page *page,
struct vm_area_struct *vma)
{
- VM_BUG_ON_PAGE(PageLRU(page), page);
+ VM_BUG(PageLRU(page), "%pZp", page);

if (likely((vma->vm_flags & (VM_LOCKED | VM_SPECIAL)) != VM_LOCKED)) {
SetPageActive(page);
@@ -995,7 +996,7 @@ void release_pages(struct page **pages, int nr, bool cold)
}

lruvec = mem_cgroup_page_lruvec(page, zone);
- VM_BUG_ON_PAGE(!PageLRU(page), page);
+ VM_BUG(!PageLRU(page), "%pZp", page);
__ClearPageLRU(page);
del_page_from_lru_list(page, lruvec, page_off_lru(page));
}
@@ -1038,9 +1039,9 @@ void lru_add_page_tail(struct page *page, struct page *page_tail,
{
const int file = 0;

- VM_BUG_ON_PAGE(!PageHead(page), page);
- VM_BUG_ON_PAGE(PageCompound(page_tail), page);
- VM_BUG_ON_PAGE(PageLRU(page_tail), page);
+ VM_BUG(!PageHead(page), "%pZp", page);
+ VM_BUG(PageCompound(page_tail), "%pZp", page);
+ VM_BUG(PageLRU(page_tail), "%pZp", page);
VM_BUG_ON(NR_CPUS != 1 &&
!spin_is_locked(&lruvec_zone(lruvec)->lru_lock));

@@ -1079,7 +1080,7 @@ static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec,
int active = PageActive(page);
enum lru_list lru = page_lru(page);

- VM_BUG_ON_PAGE(PageLRU(page), page);
+ VM_BUG(PageLRU(page), "%pZp", page);

SetPageLRU(page);
add_page_to_lru_list(page, lruvec, lru);
diff --git a/mm/swap_state.c b/mm/swap_state.c
index a2611ce..0609662 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -81,9 +81,9 @@ int __add_to_swap_cache(struct page *page, swp_entry_t entry)
int error;
struct address_space *address_space;

- VM_BUG_ON_PAGE(!PageLocked(page), page);
- VM_BUG_ON_PAGE(PageSwapCache(page), page);
- VM_BUG_ON_PAGE(!PageSwapBacked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
+ VM_BUG(PageSwapCache(page), "%pZp", page);
+ VM_BUG(!PageSwapBacked(page), "%pZp", page);

page_cache_get(page);
SetPageSwapCache(page);
@@ -137,9 +137,9 @@ void __delete_from_swap_cache(struct page *page)
swp_entry_t entry;
struct address_space *address_space;

- VM_BUG_ON_PAGE(!PageLocked(page), page);
- VM_BUG_ON_PAGE(!PageSwapCache(page), page);
- VM_BUG_ON_PAGE(PageWriteback(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
+ VM_BUG(!PageSwapCache(page), "%pZp", page);
+ VM_BUG(PageWriteback(page), "%pZp", page);

entry.val = page_private(page);
address_space = swap_address_space(entry);
@@ -163,8 +163,8 @@ int add_to_swap(struct page *page, struct list_head *list)
swp_entry_t entry;
int err;

- VM_BUG_ON_PAGE(!PageLocked(page), page);
- VM_BUG_ON_PAGE(!PageUptodate(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
+ VM_BUG(!PageUptodate(page), "%pZp", page);

entry = get_swap_page();
if (!entry.val)
diff --git a/mm/swapfile.c b/mm/swapfile.c
index a7e7210..d71dcd6 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -884,7 +884,7 @@ int reuse_swap_page(struct page *page)
{
int count;

- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);
if (unlikely(PageKsm(page)))
return 0;
count = page_mapcount(page);
@@ -904,7 +904,7 @@ int reuse_swap_page(struct page *page)
*/
int try_to_free_swap(struct page *page)
{
- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);

if (!PageSwapCache(page))
return 0;
@@ -2710,7 +2710,7 @@ struct swap_info_struct *page_swap_info(struct page *page)
*/
struct address_space *__page_file_mapping(struct page *page)
{
- VM_BUG_ON_PAGE(!PageSwapCache(page), page);
+ VM_BUG(!PageSwapCache(page), "%pZp", page);
return page_swap_info(page)->swap_file->f_mapping;
}
EXPORT_SYMBOL_GPL(__page_file_mapping);
@@ -2718,7 +2718,7 @@ EXPORT_SYMBOL_GPL(__page_file_mapping);
pgoff_t __page_file_index(struct page *page)
{
swp_entry_t swap = { .val = page_private(page) };
- VM_BUG_ON_PAGE(!PageSwapCache(page), page);
+ VM_BUG(!PageSwapCache(page), "%pZp", page);
return swp_offset(swap);
}
EXPORT_SYMBOL_GPL(__page_file_index);
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 9cc982f..6a1a329 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -688,7 +688,7 @@ void putback_lru_page(struct page *page)
bool is_unevictable;
int was_unevictable = PageUnevictable(page);

- VM_BUG_ON_PAGE(PageLRU(page), page);
+ VM_BUG(PageLRU(page), "%pZp", page);

redo:
ClearPageUnevictable(page);
@@ -761,7 +761,7 @@ static enum page_references page_check_references(struct page *page,
unsigned long vm_flags;
int pte_dirty;

- VM_BUG_ON_PAGE(!PageLocked(page), page);
+ VM_BUG(!PageLocked(page), "%pZp", page);

referenced_ptes = page_referenced(page, 1, sc->target_mem_cgroup,
&vm_flags, &pte_dirty);
@@ -887,8 +887,8 @@ static unsigned long shrink_page_list(struct list_head *page_list,
if (!trylock_page(page))
goto keep;

- VM_BUG_ON_PAGE(PageActive(page), page);
- VM_BUG_ON_PAGE(page_zone(page) != zone, page);
+ VM_BUG(PageActive(page), "%pZp", page);
+ VM_BUG(page_zone(page) != zone, "%pZp", page);

sc->nr_scanned++;

@@ -1059,7 +1059,7 @@ unmap:
* due to skipping of swapcache so we free
* page in here rather than __remove_mapping.
*/
- VM_BUG_ON_PAGE(PageSwapCache(page), page);
+ VM_BUG(PageSwapCache(page), "%pZp", page);
if (!page_freeze_refs(page, 1))
goto keep_locked;
__ClearPageLocked(page);
@@ -1196,14 +1196,14 @@ activate_locked:
/* Not a candidate for swapping, so reclaim swap space. */
if (PageSwapCache(page) && vm_swap_full())
try_to_free_swap(page);
- VM_BUG_ON_PAGE(PageActive(page), page);
+ VM_BUG(PageActive(page), "%pZp", page);
SetPageActive(page);
pgactivate++;
keep_locked:
unlock_page(page);
keep:
list_add(&page->lru, &ret_pages);
- VM_BUG_ON_PAGE(PageLRU(page) || PageUnevictable(page), page);
+ VM_BUG(PageLRU(page) || PageUnevictable(page), "%pZp", page);
}

mem_cgroup_uncharge_list(&free_pages);
@@ -1358,7 +1358,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
page = lru_to_page(src);
prefetchw_prev_lru_page(page, src, flags);

- VM_BUG_ON_PAGE(!PageLRU(page), page);
+ VM_BUG(!PageLRU(page), "%pZp", page);

switch (__isolate_lru_page(page, mode)) {
case 0:
@@ -1413,7 +1413,7 @@ int isolate_lru_page(struct page *page)
{
int ret = -EBUSY;

- VM_BUG_ON_PAGE(!page_count(page), page);
+ VM_BUG(!page_count(page), "%pZp", page);

if (PageLRU(page)) {
struct zone *zone = page_zone(page);
@@ -1501,7 +1501,7 @@ putback_inactive_pages(struct lruvec *lruvec, struct list_head *page_list)
struct page *page = lru_to_page(page_list);
int lru;

- VM_BUG_ON_PAGE(PageLRU(page), page);
+ VM_BUG(PageLRU(page), "%pZp", page);
list_del(&page->lru);
if (unlikely(!page_evictable(page))) {
spin_unlock_irq(&zone->lru_lock);
@@ -1736,7 +1736,7 @@ static void move_active_pages_to_lru(struct lruvec *lruvec,
page = lru_to_page(list);
lruvec = mem_cgroup_page_lruvec(page, zone);

- VM_BUG_ON_PAGE(PageLRU(page), page);
+ VM_BUG(PageLRU(page), "%pZp", page);
SetPageLRU(page);

nr_pages = hpage_nr_pages(page);
@@ -3861,7 +3861,7 @@ void check_move_unevictable_pages(struct page **pages, int nr_pages)
if (page_evictable(page)) {
enum lru_list lru = page_lru_base_type(page);

- VM_BUG_ON_PAGE(PageActive(page), page);
+ VM_BUG(PageActive(page), "%pZp", page);
ClearPageUnevictable(page);
del_page_from_lru_list(page, lruvec, LRU_UNEVICTABLE);
add_page_to_lru_list(page, lruvec, lru);
--
1.7.10.4


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