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Merge branch 'akpm' (patches from Andrew)

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Merge misc fixes from Andrew Morton:
 "Two weeks worth of fixes here"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (41 commits)
  init/main.c: fix initcall_blacklisted on ia64, ppc64 and parisc64
  autofs: don't get stuck in a loop if vfs_write() returns an error
  mm/page_owner: avoid null pointer dereference
  tools/vm/slabinfo: fix spelling mistake: "Ocurrences" -> "Occurrences"
  fs/nilfs2: fix potential underflow in call to crc32_le
  oom, suspend: fix oom_reaper vs. oom_killer_disable race
  ocfs2: disable BUG assertions in reading blocks
  mm, compaction: abort free scanner if split fails
  mm: prevent KASAN false positives in kmemleak
  mm/hugetlb: clear compound_mapcount when freeing gigantic pages
  mm/swap.c: flush lru pvecs on compound page arrival
  memcg: css_alloc should return an ERR_PTR value on error
  memcg: mem_cgroup_migrate() may be called with irq disabled
  hugetlb: fix nr_pmds accounting with shared page tables
  Revert "mm: disable fault around on emulated access bit architecture"
  Revert "mm: make faultaround produce old ptes"
  mailmap: add Boris Brezillon's email
  mailmap: add Antoine Tenart's email
  mm, sl[au]b: add __GFP_ATOMIC to the GFP reclaim mask
  mm: mempool: kasan: don't poot mempool objects in quarantine
  ...
This commit is contained in:
Linus Torvalds 2016-06-24 19:08:33 -07:00
commit 086e3eb65e
67 changed files with 178 additions and 207 deletions
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4
.mailmap
View file

@ -21,6 +21,7 @@ Andrey Ryabinin <ryabinin.a.a@gmail.com> <a.ryabinin@samsung.com>
Andrew Morton <akpm@linux-foundation.org> Andrew Morton <akpm@linux-foundation.org>
Andrew Vasquez <andrew.vasquez@qlogic.com> Andrew Vasquez <andrew.vasquez@qlogic.com>
Andy Adamson <andros@citi.umich.edu> Andy Adamson <andros@citi.umich.edu>
Antoine Tenart <antoine.tenart@free-electrons.com>
Antonio Ospite <ao2@ao2.it> <ao2@amarulasolutions.com> Antonio Ospite <ao2@ao2.it> <ao2@amarulasolutions.com>
Archit Taneja <archit@ti.com> Archit Taneja <archit@ti.com>
Arnaud Patard <arnaud.patard@rtp-net.org> Arnaud Patard <arnaud.patard@rtp-net.org>
@ -30,6 +31,9 @@ Axel Lin <axel.lin@gmail.com>
Ben Gardner <bgardner@wabtec.com> Ben Gardner <bgardner@wabtec.com>
Ben M Cahill <ben.m.cahill@intel.com> Ben M Cahill <ben.m.cahill@intel.com>
Björn Steinbrink <B.Steinbrink@gmx.de> Björn Steinbrink <B.Steinbrink@gmx.de>
Boris Brezillon <boris.brezillon@free-electrons.com>
Boris Brezillon <boris.brezillon@free-electrons.com> <b.brezillon.dev@gmail.com>
Boris Brezillon <boris.brezillon@free-electrons.com> <b.brezillon@overkiz.com>
Brian Avery <b.avery@hp.com> Brian Avery <b.avery@hp.com>
Brian King <brking@us.ibm.com> Brian King <brking@us.ibm.com>
Christoph Hellwig <hch@lst.de> Christoph Hellwig <hch@lst.de>

6
MAINTAINERS
View file

@ -2776,9 +2776,9 @@ F: include/net/caif/
F: net/caif/ F: net/caif/
CALGARY x86-64 IOMMU CALGARY x86-64 IOMMU
M: Muli Ben-Yehuda <muli@il.ibm.com> M: Muli Ben-Yehuda <mulix@mulix.org>
M: "Jon D. Mason" <jdmason@kudzu.us> M: Jon Mason <jdmason@kudzu.us>
L: discuss@x86-64.org L: iommu@lists.linux-foundation.org
S: Maintained S: Maintained
F: arch/x86/kernel/pci-calgary_64.c F: arch/x86/kernel/pci-calgary_64.c
F: arch/x86/kernel/tce_64.c F: arch/x86/kernel/tce_64.c

4
arch/alpha/include/asm/pgalloc.h
View file

@ -40,7 +40,7 @@ pgd_free(struct mm_struct *mm, pgd_t *pgd)
static inline pmd_t * static inline pmd_t *
pmd_alloc_one(struct mm_struct *mm, unsigned long address) pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{ {
pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
return ret; return ret;
} }
@ -53,7 +53,7 @@ pmd_free(struct mm_struct *mm, pmd_t *pmd)
static inline pte_t * static inline pte_t *
pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{ {
pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
return pte; return pte;
} }

4
arch/arc/include/asm/pgalloc.h
View file

@ -95,7 +95,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
{ {
pte_t *pte; pte_t *pte;
pte = (pte_t *) __get_free_pages(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO, pte = (pte_t *) __get_free_pages(GFP_KERNEL | __GFP_ZERO,
__get_order_pte()); __get_order_pte());
return pte; return pte;
@ -107,7 +107,7 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
pgtable_t pte_pg; pgtable_t pte_pg;
struct page *page; struct page *page;
pte_pg = (pgtable_t)__get_free_pages(GFP_KERNEL | __GFP_REPEAT, __get_order_pte()); pte_pg = (pgtable_t)__get_free_pages(GFP_KERNEL, __get_order_pte());
if (!pte_pg) if (!pte_pg)
return 0; return 0;
memzero((void *)pte_pg, PTRS_PER_PTE * sizeof(pte_t)); memzero((void *)pte_pg, PTRS_PER_PTE * sizeof(pte_t));

2
arch/arm/include/asm/pgalloc.h
View file

@ -29,7 +29,7 @@
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{ {
return (pmd_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT); return (pmd_t *)get_zeroed_page(GFP_KERNEL);
} }
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)

2
arch/arm64/include/asm/pgalloc.h
View file

@ -26,7 +26,7 @@
#define check_pgt_cache() do { } while (0) #define check_pgt_cache() do { } while (0)
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO) #define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
#define PGD_SIZE (PTRS_PER_PGD * sizeof(pgd_t)) #define PGD_SIZE (PTRS_PER_PGD * sizeof(pgd_t))
#if CONFIG_PGTABLE_LEVELS > 2 #if CONFIG_PGTABLE_LEVELS > 2

6
arch/avr32/include/asm/pgalloc.h
View file

@ -43,7 +43,7 @@ static inline void pgd_ctor(void *x)
*/ */
static inline pgd_t *pgd_alloc(struct mm_struct *mm) static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{ {
return quicklist_alloc(QUICK_PGD, GFP_KERNEL | __GFP_REPEAT, pgd_ctor); return quicklist_alloc(QUICK_PGD, GFP_KERNEL, pgd_ctor);
} }
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
@ -54,7 +54,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
return quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL); return quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
} }
static inline pgtable_t pte_alloc_one(struct mm_struct *mm, static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
@ -63,7 +63,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
struct page *page; struct page *page;
void *pg; void *pg;
pg = quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL); pg = quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
if (!pg) if (!pg)
return NULL; return NULL;

4
arch/cris/include/asm/pgalloc.h
View file

@ -24,14 +24,14 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{ {
pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
return pte; return pte;
} }
static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address) static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
{ {
struct page *pte; struct page *pte;
pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); pte = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0);
if (!pte) if (!pte)
return NULL; return NULL;
if (!pgtable_page_ctor(pte)) { if (!pgtable_page_ctor(pte)) {

6
arch/frv/mm/pgalloc.c
View file

@ -22,7 +22,7 @@ pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__((aligned(PAGE_SIZE)));
pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{ {
pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT); pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL);
if (pte) if (pte)
clear_page(pte); clear_page(pte);
return pte; return pte;
@ -33,9 +33,9 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
struct page *page; struct page *page;
#ifdef CONFIG_HIGHPTE #ifdef CONFIG_HIGHPTE
page = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM|__GFP_REPEAT, 0); page = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM, 0);
#else #else
page = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0); page = alloc_pages(GFP_KERNEL, 0);
#endif #endif
if (!page) if (!page)
return NULL; return NULL;

4
arch/hexagon/include/asm/pgalloc.h
View file

@ -64,7 +64,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
{ {
struct page *pte; struct page *pte;
pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); pte = alloc_page(GFP_KERNEL | __GFP_ZERO);
if (!pte) if (!pte)
return NULL; return NULL;
if (!pgtable_page_ctor(pte)) { if (!pgtable_page_ctor(pte)) {
@ -78,7 +78,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
gfp_t flags = GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO; gfp_t flags = GFP_KERNEL | __GFP_ZERO;
return (pte_t *) __get_free_page(flags); return (pte_t *) __get_free_page(flags);
} }

4
arch/m68k/include/asm/mcf_pgalloc.h
View file

@ -14,7 +14,7 @@ extern const char bad_pmd_string[];
extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
unsigned long page = __get_free_page(GFP_DMA|__GFP_REPEAT); unsigned long page = __get_free_page(GFP_DMA);
if (!page) if (!page)
return NULL; return NULL;
@ -51,7 +51,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
static inline struct page *pte_alloc_one(struct mm_struct *mm, static inline struct page *pte_alloc_one(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
struct page *page = alloc_pages(GFP_DMA|__GFP_REPEAT, 0); struct page *page = alloc_pages(GFP_DMA, 0);
pte_t *pte; pte_t *pte;
if (!page) if (!page)

4
arch/m68k/include/asm/motorola_pgalloc.h
View file

@ -11,7 +11,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long ad
{ {
pte_t *pte; pte_t *pte;
pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
if (pte) { if (pte) {
__flush_page_to_ram(pte); __flush_page_to_ram(pte);
flush_tlb_kernel_page(pte); flush_tlb_kernel_page(pte);
@ -32,7 +32,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addres
struct page *page; struct page *page;
pte_t *pte; pte_t *pte;
page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); page = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0);
if(!page) if(!page)
return NULL; return NULL;
if (!pgtable_page_ctor(page)) { if (!pgtable_page_ctor(page)) {

4
arch/m68k/include/asm/sun3_pgalloc.h
View file

@ -37,7 +37,7 @@ do { \
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
unsigned long page = __get_free_page(GFP_KERNEL|__GFP_REPEAT); unsigned long page = __get_free_page(GFP_KERNEL);
if (!page) if (!page)
return NULL; return NULL;
@ -49,7 +49,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
static inline pgtable_t pte_alloc_one(struct mm_struct *mm, static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0); struct page *page = alloc_pages(GFP_KERNEL, 0);
if (page == NULL) if (page == NULL)
return NULL; return NULL;

5
arch/metag/include/asm/pgalloc.h
View file

@ -42,8 +42,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
__GFP_ZERO);
return pte; return pte;
} }
@ -51,7 +50,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
struct page *pte; struct page *pte;
pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO, 0); pte = alloc_pages(GFP_KERNEL | __GFP_ZERO, 0);
if (!pte) if (!pte)
return NULL; return NULL;
if (!pgtable_page_ctor(pte)) { if (!pgtable_page_ctor(pte)) {

4
arch/microblaze/include/asm/pgalloc.h
View file

@ -116,9 +116,9 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
struct page *ptepage; struct page *ptepage;
#ifdef CONFIG_HIGHPTE #ifdef CONFIG_HIGHPTE
int flags = GFP_KERNEL | __GFP_HIGHMEM | __GFP_REPEAT; int flags = GFP_KERNEL | __GFP_HIGHMEM;
#else #else
int flags = GFP_KERNEL | __GFP_REPEAT; int flags = GFP_KERNEL;
#endif #endif
ptepage = alloc_pages(flags, 0); ptepage = alloc_pages(flags, 0);

3
arch/microblaze/mm/pgtable.c
View file

@ -239,8 +239,7 @@ __init_refok pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
{ {
pte_t *pte; pte_t *pte;
if (mem_init_done) { if (mem_init_done) {
pte = (pte_t *)__get_free_page(GFP_KERNEL | pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
__GFP_REPEAT | __GFP_ZERO);
} else { } else {
pte = (pte_t *)early_get_page(); pte = (pte_t *)early_get_page();
if (pte) if (pte)

6
arch/mips/include/asm/pgalloc.h
View file

@ -69,7 +69,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
{ {
pte_t *pte; pte_t *pte;
pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, PTE_ORDER); pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_ZERO, PTE_ORDER);
return pte; return pte;
} }
@ -79,7 +79,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
{ {
struct page *pte; struct page *pte;
pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER); pte = alloc_pages(GFP_KERNEL, PTE_ORDER);
if (!pte) if (!pte)
return NULL; return NULL;
clear_highpage(pte); clear_highpage(pte);
@ -113,7 +113,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{ {
pmd_t *pmd; pmd_t *pmd;
pmd = (pmd_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT, PMD_ORDER); pmd = (pmd_t *) __get_free_pages(GFP_KERNEL, PMD_ORDER);
if (pmd) if (pmd)
pmd_init((unsigned long)pmd, (unsigned long)invalid_pte_table); pmd_init((unsigned long)pmd, (unsigned long)invalid_pte_table);
return pmd; return pmd;

6
arch/mn10300/mm/pgtable.c
View file

@ -63,7 +63,7 @@ void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)
pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{ {
pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT); pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL);
if (pte) if (pte)
clear_page(pte); clear_page(pte);
return pte; return pte;
@ -74,9 +74,9 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
struct page *pte; struct page *pte;
#ifdef CONFIG_HIGHPTE #ifdef CONFIG_HIGHPTE
pte = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM|__GFP_REPEAT, 0); pte = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM, 0);
#else #else
pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0); pte = alloc_pages(GFP_KERNEL, 0);
#endif #endif
if (!pte) if (!pte)
return NULL; return NULL;

5
arch/nios2/include/asm/pgalloc.h
View file

@ -42,8 +42,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
{ {
pte_t *pte; pte_t *pte;
pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_ZERO, PTE_ORDER);
PTE_ORDER);
return pte; return pte;
} }
@ -53,7 +52,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
{ {
struct page *pte; struct page *pte;
pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER); pte = alloc_pages(GFP_KERNEL, PTE_ORDER);
if (pte) { if (pte) {
if (!pgtable_page_ctor(pte)) { if (!pgtable_page_ctor(pte)) {
__free_page(pte); __free_page(pte);

2
arch/openrisc/include/asm/pgalloc.h
View file

@ -77,7 +77,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
struct page *pte; struct page *pte;
pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0); pte = alloc_pages(GFP_KERNEL, 0);
if (!pte) if (!pte)
return NULL; return NULL;
clear_page(page_address(pte)); clear_page(page_address(pte));

2
arch/openrisc/mm/ioremap.c
View file

@ -122,7 +122,7 @@ pte_t __init_refok *pte_alloc_one_kernel(struct mm_struct *mm,
pte_t *pte; pte_t *pte;
if (likely(mem_init_done)) { if (likely(mem_init_done)) {
pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT); pte = (pte_t *) __get_free_page(GFP_KERNEL);
} else { } else {
pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE); pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
#if 0 #if 0

7
arch/parisc/include/asm/pgalloc.h
View file

@ -63,8 +63,7 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{ {
pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT, pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL, PMD_ORDER);
PMD_ORDER);
if (pmd) if (pmd)
memset(pmd, 0, PAGE_SIZE<<PMD_ORDER); memset(pmd, 0, PAGE_SIZE<<PMD_ORDER);
return pmd; return pmd;
@ -124,7 +123,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
static inline pgtable_t static inline pgtable_t
pte_alloc_one(struct mm_struct *mm, unsigned long address) pte_alloc_one(struct mm_struct *mm, unsigned long address)
{ {
struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); struct page *page = alloc_page(GFP_KERNEL|__GFP_ZERO);
if (!page) if (!page)
return NULL; return NULL;
if (!pgtable_page_ctor(page)) { if (!pgtable_page_ctor(page)) {
@ -137,7 +136,7 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
static inline pte_t * static inline pte_t *
pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr) pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
{ {
pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
return pte; return pte;
} }

12
arch/powerpc/include/asm/book3s/64/pgalloc.h
View file

@ -41,7 +41,7 @@ extern struct kmem_cache *pgtable_cache[];
pgtable_cache[(shift) - 1]; \ pgtable_cache[(shift) - 1]; \
}) })
#define PGALLOC_GFP GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO #define PGALLOC_GFP GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO
extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int); extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
extern void pte_fragment_free(unsigned long *, int); extern void pte_fragment_free(unsigned long *, int);
@ -56,7 +56,7 @@ static inline pgd_t *radix__pgd_alloc(struct mm_struct *mm)
return (pgd_t *)__get_free_page(PGALLOC_GFP); return (pgd_t *)__get_free_page(PGALLOC_GFP);
#else #else
struct page *page; struct page *page;
page = alloc_pages(PGALLOC_GFP, 4); page = alloc_pages(PGALLOC_GFP | __GFP_REPEAT, 4);
if (!page) if (!page)
return NULL; return NULL;
return (pgd_t *) page_address(page); return (pgd_t *) page_address(page);
@ -93,8 +93,7 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{ {
return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE), return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE), GFP_KERNEL);
GFP_KERNEL|__GFP_REPEAT);
} }
static inline void pud_free(struct mm_struct *mm, pud_t *pud) static inline void pud_free(struct mm_struct *mm, pud_t *pud)
@ -115,8 +114,7 @@ static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{ {
return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX), return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX), GFP_KERNEL);
GFP_KERNEL|__GFP_REPEAT);
} }
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
@ -151,7 +149,7 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd)
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
} }
static inline pgtable_t pte_alloc_one(struct mm_struct *mm, static inline pgtable_t pte_alloc_one(struct mm_struct *mm,

8
arch/powerpc/include/asm/nohash/64/pgalloc.h
View file

@ -57,8 +57,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{ {
return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE), return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE), GFP_KERNEL);
GFP_KERNEL|__GFP_REPEAT);
} }
static inline void pud_free(struct mm_struct *mm, pud_t *pud) static inline void pud_free(struct mm_struct *mm, pud_t *pud)
@ -88,7 +87,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
} }
static inline pgtable_t pte_alloc_one(struct mm_struct *mm, static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
@ -190,8 +189,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{ {
return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX), return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX), GFP_KERNEL);
GFP_KERNEL|__GFP_REPEAT);
} }
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)

2
arch/powerpc/mm/hugetlbpage.c
View file

@ -73,7 +73,7 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp,
cachep = PGT_CACHE(pdshift - pshift); cachep = PGT_CACHE(pdshift - pshift);
#endif #endif
new = kmem_cache_zalloc(cachep, GFP_KERNEL|__GFP_REPEAT); new = kmem_cache_zalloc(cachep, GFP_KERNEL);
BUG_ON(pshift > HUGEPD_SHIFT_MASK); BUG_ON(pshift > HUGEPD_SHIFT_MASK);
BUG_ON((unsigned long)new & HUGEPD_SHIFT_MASK); BUG_ON((unsigned long)new & HUGEPD_SHIFT_MASK);

4
arch/powerpc/mm/pgtable_32.c
View file

@ -84,7 +84,7 @@ __init_refok pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long add
pte_t *pte; pte_t *pte;
if (slab_is_available()) { if (slab_is_available()) {
pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
} else { } else {
pte = __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE)); pte = __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
if (pte) if (pte)
@ -97,7 +97,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
{ {
struct page *ptepage; struct page *ptepage;
gfp_t flags = GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO; gfp_t flags = GFP_KERNEL | __GFP_ZERO;
ptepage = alloc_pages(flags, 0); ptepage = alloc_pages(flags, 0);
if (!ptepage) if (!ptepage)

3
arch/powerpc/mm/pgtable_64.c
View file

@ -350,8 +350,7 @@ static pte_t *get_from_cache(struct mm_struct *mm)
static pte_t *__alloc_for_cache(struct mm_struct *mm, int kernel) static pte_t *__alloc_for_cache(struct mm_struct *mm, int kernel)
{ {
void *ret = NULL; void *ret = NULL;
struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
__GFP_REPEAT | __GFP_ZERO);
if (!page) if (!page)
return NULL; return NULL;
if (!kernel && !pgtable_page_ctor(page)) { if (!kernel && !pgtable_page_ctor(page)) {

2
arch/s390/mm/pgalloc.c
View file

@ -169,7 +169,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
return table; return table;
} }
/* Allocate a fresh page */ /* Allocate a fresh page */
page = alloc_page(GFP_KERNEL|__GFP_REPEAT); page = alloc_page(GFP_KERNEL);
if (!page) if (!page)
return NULL; return NULL;
if (!pgtable_page_ctor(page)) { if (!pgtable_page_ctor(page)) {

5
arch/score/include/asm/pgalloc.h
View file

@ -42,8 +42,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
{ {
pte_t *pte; pte_t *pte;
pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_ZERO, PTE_ORDER);
PTE_ORDER);
return pte; return pte;
} }
@ -53,7 +52,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
{ {
struct page *pte; struct page *pte;
pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER); pte = alloc_pages(GFP_KERNEL, PTE_ORDER);
if (!pte) if (!pte)
return NULL; return NULL;
clear_highpage(pte); clear_highpage(pte);

4
arch/sh/include/asm/pgalloc.h
View file

@ -34,7 +34,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
return quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL); return quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
} }
static inline pgtable_t pte_alloc_one(struct mm_struct *mm, static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
@ -43,7 +43,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
struct page *page; struct page *page;
void *pg; void *pg;
pg = quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL); pg = quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
if (!pg) if (!pg)
return NULL; return NULL;
page = virt_to_page(pg); page = virt_to_page(pg);

2
arch/sh/mm/pgtable.c
View file

@ -1,7 +1,7 @@
#include <linux/mm.h> #include <linux/mm.h>
#include <linux/slab.h> #include <linux/slab.h>
#define PGALLOC_GFP GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO #define PGALLOC_GFP GFP_KERNEL | __GFP_ZERO
static struct kmem_cache *pgd_cachep; static struct kmem_cache *pgd_cachep;
#if PAGETABLE_LEVELS > 2 #if PAGETABLE_LEVELS > 2

6
arch/sparc/include/asm/pgalloc_64.h
View file

@ -41,8 +41,7 @@ static inline void __pud_populate(pud_t *pud, pmd_t *pmd)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{ {
return kmem_cache_alloc(pgtable_cache, return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
GFP_KERNEL|__GFP_REPEAT);
} }
static inline void pud_free(struct mm_struct *mm, pud_t *pud) static inline void pud_free(struct mm_struct *mm, pud_t *pud)
@ -52,8 +51,7 @@ static inline void pud_free(struct mm_struct *mm, pud_t *pud)
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{ {
return kmem_cache_alloc(pgtable_cache, return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
GFP_KERNEL|__GFP_REPEAT);
} }
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)

6
arch/sparc/mm/init_64.c
View file

@ -2704,8 +2704,7 @@ void __flush_tlb_all(void)
pte_t *pte_alloc_one_kernel(struct mm_struct *mm, pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
__GFP_REPEAT | __GFP_ZERO);
pte_t *pte = NULL; pte_t *pte = NULL;
if (page) if (page)
@ -2717,8 +2716,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
pgtable_t pte_alloc_one(struct mm_struct *mm, pgtable_t pte_alloc_one(struct mm_struct *mm,
unsigned long address) unsigned long address)
{ {
struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
__GFP_REPEAT | __GFP_ZERO);
if (!page) if (!page)
return NULL; return NULL;
if (!pgtable_page_ctor(page)) { if (!pgtable_page_ctor(page)) {

2
arch/tile/mm/pgtable.c
View file

@ -231,7 +231,7 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
struct page *pgtable_alloc_one(struct mm_struct *mm, unsigned long address, struct page *pgtable_alloc_one(struct mm_struct *mm, unsigned long address,
int order) int order)
{ {
gfp_t flags = GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO; gfp_t flags = GFP_KERNEL|__GFP_ZERO;
struct page *p; struct page *p;
int i; int i;

4
arch/um/kernel/mem.c
View file

@ -204,7 +204,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{ {
pte_t *pte; pte_t *pte;
pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
return pte; return pte;
} }
@ -212,7 +212,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
{ {
struct page *pte; struct page *pte;
pte = alloc_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); pte = alloc_page(GFP_KERNEL|__GFP_ZERO);
if (!pte) if (!pte)
return NULL; return NULL;
if (!pgtable_page_ctor(pte)) { if (!pgtable_page_ctor(pte)) {

2
arch/unicore32/include/asm/pgalloc.h
View file

@ -28,7 +28,7 @@ extern void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd);
#define pgd_alloc(mm) get_pgd_slow(mm) #define pgd_alloc(mm) get_pgd_slow(mm)
#define pgd_free(mm, pgd) free_pgd_slow(mm, pgd) #define pgd_free(mm, pgd) free_pgd_slow(mm, pgd)
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO) #define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
/* /*
* Allocate one PTE table. * Allocate one PTE table.

4
arch/x86/include/asm/pgalloc.h
View file

@ -81,7 +81,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{ {
struct page *page; struct page *page;
page = alloc_pages(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO, 0); page = alloc_pages(GFP_KERNEL | __GFP_ZERO, 0);
if (!page) if (!page)
return NULL; return NULL;
if (!pgtable_pmd_page_ctor(page)) { if (!pgtable_pmd_page_ctor(page)) {
@ -125,7 +125,7 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{ {
return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT); return (pud_t *)get_zeroed_page(GFP_KERNEL);
} }
static inline void pud_free(struct mm_struct *mm, pud_t *pud) static inline void pud_free(struct mm_struct *mm, pud_t *pud)

2
arch/x86/kernel/espfix_64.c
View file

@ -57,7 +57,7 @@
# error "Need more than one PGD for the ESPFIX hack" # error "Need more than one PGD for the ESPFIX hack"
#endif #endif
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO) #define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
/* This contains the *bottom* address of the espfix stack */ /* This contains the *bottom* address of the espfix stack */
DEFINE_PER_CPU_READ_MOSTLY(unsigned long, espfix_stack); DEFINE_PER_CPU_READ_MOSTLY(unsigned long, espfix_stack);

2
arch/x86/mm/pgtable.c
View file

@ -6,7 +6,7 @@
#include <asm/fixmap.h> #include <asm/fixmap.h>
#include <asm/mtrr.h> #include <asm/mtrr.h>
#define PGALLOC_GFP GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO #define PGALLOC_GFP GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO
#ifdef CONFIG_HIGHPTE #ifdef CONFIG_HIGHPTE
#define PGALLOC_USER_GFP __GFP_HIGHMEM #define PGALLOC_USER_GFP __GFP_HIGHMEM

2
arch/x86/platform/efi/efi_64.c
View file

@ -139,7 +139,7 @@ int __init efi_alloc_page_tables(void)
if (efi_enabled(EFI_OLD_MEMMAP)) if (efi_enabled(EFI_OLD_MEMMAP))
return 0; return 0;
gfp_mask = GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO; gfp_mask = GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO;
efi_pgd = (pgd_t *)__get_free_page(gfp_mask); efi_pgd = (pgd_t *)__get_free_page(gfp_mask);
if (!efi_pgd) if (!efi_pgd)
return -ENOMEM; return -ENOMEM;

2
arch/x86/xen/p2m.c
View file

@ -182,7 +182,7 @@ static void * __ref alloc_p2m_page(void)
if (unlikely(!slab_is_available())) if (unlikely(!slab_is_available()))
return alloc_bootmem_align(PAGE_SIZE, PAGE_SIZE); return alloc_bootmem_align(PAGE_SIZE, PAGE_SIZE);
return (void *)__get_free_page(GFP_KERNEL | __GFP_REPEAT); return (void *)__get_free_page(GFP_KERNEL);
} }
static void __ref free_p2m_page(void *p) static void __ref free_p2m_page(void *p)

2
arch/xtensa/include/asm/pgalloc.h
View file

@ -44,7 +44,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
pte_t *ptep; pte_t *ptep;
int i; int i;
ptep = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT); ptep = (pte_t *)__get_free_page(GFP_KERNEL);
if (!ptep) if (!ptep)
return NULL; return NULL;
for (i = 0; i < 1024; i++) for (i = 0; i < 1024; i++)

2
drivers/block/aoe/aoecmd.c
View file

@ -1750,7 +1750,7 @@ aoecmd_init(void)
int ret; int ret;
/* get_zeroed_page returns page with ref count 1 */ /* get_zeroed_page returns page with ref count 1 */
p = (void *) get_zeroed_page(GFP_KERNEL | __GFP_REPEAT); p = (void *) get_zeroed_page(GFP_KERNEL);
if (!p) if (!p)
return -ENOMEM; return -ENOMEM;
empty_page = virt_to_page(p); empty_page = virt_to_page(p);

7
fs/autofs4/waitq.c
View file

@ -66,11 +66,12 @@ static int autofs4_write(struct autofs_sb_info *sbi,
set_fs(KERNEL_DS); set_fs(KERNEL_DS);
mutex_lock(&sbi->pipe_mutex); mutex_lock(&sbi->pipe_mutex);
wr = __vfs_write(file, data, bytes, &file->f_pos); while (bytes) {
while (bytes && wr) { wr = __vfs_write(file, data, bytes, &file->f_pos);
if (wr <= 0)
break;
data += wr; data += wr;
bytes -= wr; bytes -= wr;
wr = __vfs_write(file, data, bytes, &file->f_pos);
} }
mutex_unlock(&sbi->pipe_mutex); mutex_unlock(&sbi->pipe_mutex);

32
fs/jbd2/journal.c
View file

@ -2329,18 +2329,10 @@ void *jbd2_alloc(size_t size, gfp_t flags)
BUG_ON(size & (size-1)); /* Must be a power of 2 */ BUG_ON(size & (size-1)); /* Must be a power of 2 */
flags |= __GFP_REPEAT; if (size < PAGE_SIZE)
if (size == PAGE_SIZE)
ptr = (void *)__get_free_pages(flags, 0);
else if (size > PAGE_SIZE) {
int order = get_order(size);
if (order < 3)
ptr = (void *)__get_free_pages(flags, order);
else
ptr = vmalloc(size);
} else
ptr = kmem_cache_alloc(get_slab(size), flags); ptr = kmem_cache_alloc(get_slab(size), flags);
else
ptr = (void *)__get_free_pages(flags, get_order(size));
/* Check alignment; SLUB has gotten this wrong in the past, /* Check alignment; SLUB has gotten this wrong in the past,
* and this can lead to user data corruption! */ * and this can lead to user data corruption! */
@ -2351,20 +2343,10 @@ void *jbd2_alloc(size_t size, gfp_t flags)
void jbd2_free(void *ptr, size_t size) void jbd2_free(void *ptr, size_t size)
{ {
if (size == PAGE_SIZE) { if (size < PAGE_SIZE)
free_pages((unsigned long)ptr, 0); kmem_cache_free(get_slab(size), ptr);
return; else
} free_pages((unsigned long)ptr, get_order(size));
if (size > PAGE_SIZE) {
int order = get_order(size);
if (order < 3)
free_pages((unsigned long)ptr, order);
else
vfree(ptr);
return;
}
kmem_cache_free(get_slab(size), ptr);
}; };
/* /*

2
fs/nilfs2/the_nilfs.c
View file

@ -439,7 +439,7 @@ static int nilfs_valid_sb(struct nilfs_super_block *sbp)
if (!sbp || le16_to_cpu(sbp->s_magic) != NILFS_SUPER_MAGIC) if (!sbp || le16_to_cpu(sbp->s_magic) != NILFS_SUPER_MAGIC)
return 0; return 0;
bytes = le16_to_cpu(sbp->s_bytes); bytes = le16_to_cpu(sbp->s_bytes);
if (bytes > BLOCK_SIZE) if (bytes < sumoff + 4 || bytes > BLOCK_SIZE)
return 0; return 0;
crc = crc32_le(le32_to_cpu(sbp->s_crc_seed), (unsigned char *)sbp, crc = crc32_le(le32_to_cpu(sbp->s_crc_seed), (unsigned char *)sbp,
sumoff); sumoff);

2
fs/ocfs2/Makefile
View file

@ -1,7 +1,5 @@
ccflags-y := -Ifs/ocfs2 ccflags-y := -Ifs/ocfs2
ccflags-y += -DCATCH_BH_JBD_RACES
obj-$(CONFIG_OCFS2_FS) += \ obj-$(CONFIG_OCFS2_FS) += \
ocfs2.o \ ocfs2.o \
ocfs2_stackglue.o ocfs2_stackglue.o

5
fs/ocfs2/buffer_head_io.c
View file

@ -139,11 +139,16 @@ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block,
lock_buffer(bh); lock_buffer(bh);
if (buffer_jbd(bh)) { if (buffer_jbd(bh)) {
#ifdef CATCH_BH_JBD_RACES
mlog(ML_ERROR, mlog(ML_ERROR,
"block %llu had the JBD bit set " "block %llu had the JBD bit set "
"while I was in lock_buffer!", "while I was in lock_buffer!",
(unsigned long long)bh->b_blocknr); (unsigned long long)bh->b_blocknr);
BUG(); BUG();
#else
unlock_buffer(bh);
continue;
#endif
} }
clear_buffer_uptodate(bh); clear_buffer_uptodate(bh);

11
include/linux/kasan.h
View file

@ -59,14 +59,13 @@ void kasan_poison_object_data(struct kmem_cache *cache, void *object);
void kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags); void kasan_kmalloc_large(const void *ptr, size_t size, gfp_t flags);
void kasan_kfree_large(const void *ptr); void kasan_kfree_large(const void *ptr);
void kasan_kfree(void *ptr); void kasan_poison_kfree(void *ptr);
void kasan_kmalloc(struct kmem_cache *s, const void *object, size_t size, void kasan_kmalloc(struct kmem_cache *s, const void *object, size_t size,
gfp_t flags); gfp_t flags);
void kasan_krealloc(const void *object, size_t new_size, gfp_t flags); void kasan_krealloc(const void *object, size_t new_size, gfp_t flags);
void kasan_slab_alloc(struct kmem_cache *s, void *object, gfp_t flags); void kasan_slab_alloc(struct kmem_cache *s, void *object, gfp_t flags);
bool kasan_slab_free(struct kmem_cache *s, void *object); bool kasan_slab_free(struct kmem_cache *s, void *object);
void kasan_poison_slab_free(struct kmem_cache *s, void *object);
struct kasan_cache { struct kasan_cache {
int alloc_meta_offset; int alloc_meta_offset;
@ -76,6 +75,9 @@ struct kasan_cache {
int kasan_module_alloc(void *addr, size_t size); int kasan_module_alloc(void *addr, size_t size);
void kasan_free_shadow(const struct vm_struct *vm); void kasan_free_shadow(const struct vm_struct *vm);
size_t ksize(const void *);
static inline void kasan_unpoison_slab(const void *ptr) { ksize(ptr); }
#else /* CONFIG_KASAN */ #else /* CONFIG_KASAN */
static inline void kasan_unpoison_shadow(const void *address, size_t size) {} static inline void kasan_unpoison_shadow(const void *address, size_t size) {}
@ -102,7 +104,7 @@ static inline void kasan_poison_object_data(struct kmem_cache *cache,
static inline void kasan_kmalloc_large(void *ptr, size_t size, gfp_t flags) {} static inline void kasan_kmalloc_large(void *ptr, size_t size, gfp_t flags) {}
static inline void kasan_kfree_large(const void *ptr) {} static inline void kasan_kfree_large(const void *ptr) {}
static inline void kasan_kfree(void *ptr) {} static inline void kasan_poison_kfree(void *ptr) {}
static inline void kasan_kmalloc(struct kmem_cache *s, const void *object, static inline void kasan_kmalloc(struct kmem_cache *s, const void *object,
size_t size, gfp_t flags) {} size_t size, gfp_t flags) {}
static inline void kasan_krealloc(const void *object, size_t new_size, static inline void kasan_krealloc(const void *object, size_t new_size,
@ -114,11 +116,12 @@ static inline bool kasan_slab_free(struct kmem_cache *s, void *object)
{ {
return false; return false;
} }
static inline void kasan_poison_slab_free(struct kmem_cache *s, void *object) {}
static inline int kasan_module_alloc(void *addr, size_t size) { return 0; } static inline int kasan_module_alloc(void *addr, size_t size) { return 0; }
static inline void kasan_free_shadow(const struct vm_struct *vm) {} static inline void kasan_free_shadow(const struct vm_struct *vm) {}
static inline void kasan_unpoison_slab(const void *ptr) { }
#endif /* CONFIG_KASAN */ #endif /* CONFIG_KASAN */
#endif /* LINUX_KASAN_H */ #endif /* LINUX_KASAN_H */

2
include/linux/mm.h
View file

@ -602,7 +602,7 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
} }
void do_set_pte(struct vm_area_struct *vma, unsigned long address, void do_set_pte(struct vm_area_struct *vma, unsigned long address,
struct page *page, pte_t *pte, bool write, bool anon, bool old); struct page *page, pte_t *pte, bool write, bool anon);
#endif #endif
/* /*

4
init/main.c
View file

@ -708,11 +708,13 @@ static bool __init_or_module initcall_blacklisted(initcall_t fn)
{ {
struct blacklist_entry *entry; struct blacklist_entry *entry;
char fn_name[KSYM_SYMBOL_LEN]; char fn_name[KSYM_SYMBOL_LEN];
unsigned long addr;
if (list_empty(&blacklisted_initcalls)) if (list_empty(&blacklisted_initcalls))
return false; return false;
sprint_symbol_no_offset(fn_name, (unsigned long)fn); addr = (unsigned long) dereference_function_descriptor(fn);
sprint_symbol_no_offset(fn_name, addr);
list_for_each_entry(entry, &blacklisted_initcalls, next) { list_for_each_entry(entry, &blacklisted_initcalls, next) {
if (!strcmp(fn_name, entry->buf)) { if (!strcmp(fn_name, entry->buf)) {

12
kernel/power/process.c
View file

@ -146,6 +146,18 @@ int freeze_processes(void)
if (!error && !oom_killer_disable()) if (!error && !oom_killer_disable())
error = -EBUSY; error = -EBUSY;
/*
* There is a hard to fix race between oom_reaper kernel thread
* and oom_killer_disable. oom_reaper calls exit_oom_victim
* before the victim reaches exit_mm so try to freeze all the tasks
* again and catch such a left over task.
*/
if (!error) {
pr_info("Double checking all user space processes after OOM killer disable... ");
error = try_to_freeze_tasks(true);
pr_cont("\n");
}
if (error) if (error)
thaw_processes(); thaw_processes();
return error; return error;

39
mm/compaction.c
View file

@ -441,25 +441,23 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
/* Found a free page, break it into order-0 pages */ /* Found a free page, break it into order-0 pages */
isolated = split_free_page(page); isolated = split_free_page(page);
if (!isolated)
break;
total_isolated += isolated; total_isolated += isolated;
cc->nr_freepages += isolated;
for (i = 0; i < isolated; i++) { for (i = 0; i < isolated; i++) {
list_add(&page->lru, freelist); list_add(&page->lru, freelist);
page++; page++;
} }
if (!strict && cc->nr_migratepages <= cc->nr_freepages) {
/* If a page was split, advance to the end of it */ blockpfn += isolated;
if (isolated) { break;
cc->nr_freepages += isolated;
if (!strict &&
cc->nr_migratepages <= cc->nr_freepages) {
blockpfn += isolated;
break;
}
blockpfn += isolated - 1;
cursor += isolated - 1;
continue;
} }
/* Advance to the end of split page */
blockpfn += isolated - 1;
cursor += isolated - 1;
continue;
isolate_fail: isolate_fail:
if (strict) if (strict)
@ -469,6 +467,9 @@ isolate_fail:
} }
if (locked)
spin_unlock_irqrestore(&cc->zone->lock, flags);
/* /*
* There is a tiny chance that we have read bogus compound_order(), * There is a tiny chance that we have read bogus compound_order(),
* so be careful to not go outside of the pageblock. * so be careful to not go outside of the pageblock.
@ -490,9 +491,6 @@ isolate_fail:
if (strict && blockpfn < end_pfn) if (strict && blockpfn < end_pfn)
total_isolated = 0; total_isolated = 0;
if (locked)
spin_unlock_irqrestore(&cc->zone->lock, flags);
/* Update the pageblock-skip if the whole pageblock was scanned */ /* Update the pageblock-skip if the whole pageblock was scanned */
if (blockpfn == end_pfn) if (blockpfn == end_pfn)
update_pageblock_skip(cc, valid_page, total_isolated, false); update_pageblock_skip(cc, valid_page, total_isolated, false);
@ -1011,6 +1009,7 @@ static void isolate_freepages(struct compact_control *cc)
block_end_pfn = block_start_pfn, block_end_pfn = block_start_pfn,
block_start_pfn -= pageblock_nr_pages, block_start_pfn -= pageblock_nr_pages,
isolate_start_pfn = block_start_pfn) { isolate_start_pfn = block_start_pfn) {
unsigned long isolated;
/* /*
* This can iterate a massively long zone without finding any * This can iterate a massively long zone without finding any
@ -1035,8 +1034,12 @@ static void isolate_freepages(struct compact_control *cc)
continue; continue;
/* Found a block suitable for isolating free pages from. */ /* Found a block suitable for isolating free pages from. */
isolate_freepages_block(cc, &isolate_start_pfn, isolated = isolate_freepages_block(cc, &isolate_start_pfn,
block_end_pfn, freelist, false); block_end_pfn, freelist, false);
/* If isolation failed early, do not continue needlessly */
if (!isolated && isolate_start_pfn < block_end_pfn &&
cc->nr_migratepages > cc->nr_freepages)
break;
/* /*
* If we isolated enough freepages, or aborted due to async * If we isolated enough freepages, or aborted due to async

2
mm/filemap.c
View file

@ -2186,7 +2186,7 @@ repeat:
if (file->f_ra.mmap_miss > 0) if (file->f_ra.mmap_miss > 0)
file->f_ra.mmap_miss--; file->f_ra.mmap_miss--;
addr = address + (page->index - vmf->pgoff) * PAGE_SIZE; addr = address + (page->index - vmf->pgoff) * PAGE_SIZE;
do_set_pte(vma, addr, page, pte, false, false, true); do_set_pte(vma, addr, page, pte, false, false);
unlock_page(page); unlock_page(page);
goto next; goto next;
unlock: unlock:

4
mm/hugetlb.c
View file

@ -1030,6 +1030,7 @@ static void destroy_compound_gigantic_page(struct page *page,
int nr_pages = 1 << order; int nr_pages = 1 << order;
struct page *p = page + 1; struct page *p = page + 1;
atomic_set(compound_mapcount_ptr(page), 0);
for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) { for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) {
clear_compound_head(p); clear_compound_head(p);
set_page_refcounted(p); set_page_refcounted(p);
@ -4228,7 +4229,6 @@ pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
if (saddr) { if (saddr) {
spte = huge_pte_offset(svma->vm_mm, saddr); spte = huge_pte_offset(svma->vm_mm, saddr);
if (spte) { if (spte) {
mm_inc_nr_pmds(mm);
get_page(virt_to_page(spte)); get_page(virt_to_page(spte));
break; break;
} }
@ -4243,9 +4243,9 @@ pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
if (pud_none(*pud)) { if (pud_none(*pud)) {
pud_populate(mm, pud, pud_populate(mm, pud,
(pmd_t *)((unsigned long)spte & PAGE_MASK)); (pmd_t *)((unsigned long)spte & PAGE_MASK));
mm_inc_nr_pmds(mm);
} else { } else {
put_page(virt_to_page(spte)); put_page(virt_to_page(spte));
mm_inc_nr_pmds(mm);
} }
spin_unlock(ptl); spin_unlock(ptl);
out: out:

3
mm/internal.h
View file

@ -24,7 +24,8 @@
*/ */
#define GFP_RECLAIM_MASK (__GFP_RECLAIM|__GFP_HIGH|__GFP_IO|__GFP_FS|\ #define GFP_RECLAIM_MASK (__GFP_RECLAIM|__GFP_HIGH|__GFP_IO|__GFP_FS|\
__GFP_NOWARN|__GFP_REPEAT|__GFP_NOFAIL|\ __GFP_NOWARN|__GFP_REPEAT|__GFP_NOFAIL|\
__GFP_NORETRY|__GFP_MEMALLOC|__GFP_NOMEMALLOC) __GFP_NORETRY|__GFP_MEMALLOC|__GFP_NOMEMALLOC|\
__GFP_ATOMIC)
/* The GFP flags allowed during early boot */ /* The GFP flags allowed during early boot */
#define GFP_BOOT_MASK (__GFP_BITS_MASK & ~(__GFP_RECLAIM|__GFP_IO|__GFP_FS)) #define GFP_BOOT_MASK (__GFP_BITS_MASK & ~(__GFP_RECLAIM|__GFP_IO|__GFP_FS))

6
mm/kasan/kasan.c
View file

@ -508,7 +508,7 @@ void kasan_slab_alloc(struct kmem_cache *cache, void *object, gfp_t flags)
kasan_kmalloc(cache, object, cache->object_size, flags); kasan_kmalloc(cache, object, cache->object_size, flags);
} }
void kasan_poison_slab_free(struct kmem_cache *cache, void *object) static void kasan_poison_slab_free(struct kmem_cache *cache, void *object)
{ {
unsigned long size = cache->object_size; unsigned long size = cache->object_size;
unsigned long rounded_up_size = round_up(size, KASAN_SHADOW_SCALE_SIZE); unsigned long rounded_up_size = round_up(size, KASAN_SHADOW_SCALE_SIZE);
@ -626,7 +626,7 @@ void kasan_krealloc(const void *object, size_t size, gfp_t flags)
kasan_kmalloc(page->slab_cache, object, size, flags); kasan_kmalloc(page->slab_cache, object, size, flags);
} }
void kasan_kfree(void *ptr) void kasan_poison_kfree(void *ptr)
{ {
struct page *page; struct page *page;
@ -636,7 +636,7 @@ void kasan_kfree(void *ptr)
kasan_poison_shadow(ptr, PAGE_SIZE << compound_order(page), kasan_poison_shadow(ptr, PAGE_SIZE << compound_order(page),
KASAN_FREE_PAGE); KASAN_FREE_PAGE);
else else
kasan_slab_free(page->slab_cache, ptr); kasan_poison_slab_free(page->slab_cache, ptr);
} }
void kasan_kfree_large(const void *ptr) void kasan_kfree_large(const void *ptr)

2
mm/kmemleak.c
View file

@ -307,8 +307,10 @@ static void hex_dump_object(struct seq_file *seq,
len = min_t(size_t, object->size, HEX_MAX_LINES * HEX_ROW_SIZE); len = min_t(size_t, object->size, HEX_MAX_LINES * HEX_ROW_SIZE);
seq_printf(seq, " hex dump (first %zu bytes):\n", len); seq_printf(seq, " hex dump (first %zu bytes):\n", len);
kasan_disable_current();
seq_hex_dump(seq, " ", DUMP_PREFIX_NONE, HEX_ROW_SIZE, seq_hex_dump(seq, " ", DUMP_PREFIX_NONE, HEX_ROW_SIZE,
HEX_GROUP_SIZE, ptr, len, HEX_ASCII); HEX_GROUP_SIZE, ptr, len, HEX_ASCII);
kasan_enable_current();
} }
/* /*

7
mm/memcontrol.c
View file

@ -4203,7 +4203,7 @@ mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
return &memcg->css; return &memcg->css;
fail: fail:
mem_cgroup_free(memcg); mem_cgroup_free(memcg);
return NULL; return ERR_PTR(-ENOMEM);
} }
static int static int
@ -5544,6 +5544,7 @@ void mem_cgroup_migrate(struct page *oldpage, struct page *newpage)
struct mem_cgroup *memcg; struct mem_cgroup *memcg;
unsigned int nr_pages; unsigned int nr_pages;
bool compound; bool compound;
unsigned long flags;
VM_BUG_ON_PAGE(!PageLocked(oldpage), oldpage); VM_BUG_ON_PAGE(!PageLocked(oldpage), oldpage);
VM_BUG_ON_PAGE(!PageLocked(newpage), newpage); VM_BUG_ON_PAGE(!PageLocked(newpage), newpage);
@ -5574,10 +5575,10 @@ void mem_cgroup_migrate(struct page *oldpage, struct page *newpage)
commit_charge(newpage, memcg, false); commit_charge(newpage, memcg, false);
local_irq_disable(); local_irq_save(flags);
mem_cgroup_charge_statistics(memcg, newpage, compound, nr_pages); mem_cgroup_charge_statistics(memcg, newpage, compound, nr_pages);
memcg_check_events(memcg, newpage); memcg_check_events(memcg, newpage);
local_irq_enable(); local_irq_restore(flags);
} }
DEFINE_STATIC_KEY_FALSE(memcg_sockets_enabled_key); DEFINE_STATIC_KEY_FALSE(memcg_sockets_enabled_key);

31
mm/memory.c
View file

@ -2877,7 +2877,7 @@ static int __do_fault(struct vm_area_struct *vma, unsigned long address,
* vm_ops->map_pages. * vm_ops->map_pages.
*/ */
void do_set_pte(struct vm_area_struct *vma, unsigned long address, void do_set_pte(struct vm_area_struct *vma, unsigned long address,
struct page *page, pte_t *pte, bool write, bool anon, bool old) struct page *page, pte_t *pte, bool write, bool anon)
{ {
pte_t entry; pte_t entry;
@ -2885,8 +2885,6 @@ void do_set_pte(struct vm_area_struct *vma, unsigned long address,
entry = mk_pte(page, vma->vm_page_prot); entry = mk_pte(page, vma->vm_page_prot);
if (write) if (write)
entry = maybe_mkwrite(pte_mkdirty(entry), vma); entry = maybe_mkwrite(pte_mkdirty(entry), vma);
if (old)
entry = pte_mkold(entry);
if (anon) { if (anon) {
inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES); inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES);
page_add_new_anon_rmap(page, vma, address, false); page_add_new_anon_rmap(page, vma, address, false);
@ -2900,16 +2898,8 @@ void do_set_pte(struct vm_area_struct *vma, unsigned long address,
update_mmu_cache(vma, address, pte); update_mmu_cache(vma, address, pte);
} }
/*
* If architecture emulates "accessed" or "young" bit without HW support,
* there is no much gain with fault_around.
*/
static unsigned long fault_around_bytes __read_mostly = static unsigned long fault_around_bytes __read_mostly =
#ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
PAGE_SIZE;
#else
rounddown_pow_of_two(65536); rounddown_pow_of_two(65536);
#endif
#ifdef CONFIG_DEBUG_FS #ifdef CONFIG_DEBUG_FS
static int fault_around_bytes_get(void *data, u64 *val) static int fault_around_bytes_get(void *data, u64 *val)
@ -3032,20 +3022,9 @@ static int do_read_fault(struct mm_struct *mm, struct vm_area_struct *vma,
*/ */
if (vma->vm_ops->map_pages && fault_around_bytes >> PAGE_SHIFT > 1) { if (vma->vm_ops->map_pages && fault_around_bytes >> PAGE_SHIFT > 1) {
pte = pte_offset_map_lock(mm, pmd, address, &ptl); pte = pte_offset_map_lock(mm, pmd, address, &ptl);
do_fault_around(vma, address, pte, pgoff, flags);
if (!pte_same(*pte, orig_pte)) if (!pte_same(*pte, orig_pte))
goto unlock_out; goto unlock_out;
do_fault_around(vma, address, pte, pgoff, flags);
/* Check if the fault is handled by faultaround */
if (!pte_same(*pte, orig_pte)) {
/*
* Faultaround produce old pte, but the pte we've
* handler fault for should be young.
*/
pte_t entry = pte_mkyoung(*pte);
if (ptep_set_access_flags(vma, address, pte, entry, 0))
update_mmu_cache(vma, address, pte);
goto unlock_out;
}
pte_unmap_unlock(pte, ptl); pte_unmap_unlock(pte, ptl);
} }
@ -3060,7 +3039,7 @@ static int do_read_fault(struct mm_struct *mm, struct vm_area_struct *vma,
put_page(fault_page); put_page(fault_page);
return ret; return ret;
} }
do_set_pte(vma, address, fault_page, pte, false, false, false); do_set_pte(vma, address, fault_page, pte, false, false);
unlock_page(fault_page); unlock_page(fault_page);
unlock_out: unlock_out:
pte_unmap_unlock(pte, ptl); pte_unmap_unlock(pte, ptl);
@ -3111,7 +3090,7 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma,
} }
goto uncharge_out; goto uncharge_out;
} }
do_set_pte(vma, address, new_page, pte, true, true, false); do_set_pte(vma, address, new_page, pte, true, true);
mem_cgroup_commit_charge(new_page, memcg, false, false); mem_cgroup_commit_charge(new_page, memcg, false, false);
lru_cache_add_active_or_unevictable(new_page, vma); lru_cache_add_active_or_unevictable(new_page, vma);
pte_unmap_unlock(pte, ptl); pte_unmap_unlock(pte, ptl);
@ -3164,7 +3143,7 @@ static int do_shared_fault(struct mm_struct *mm, struct vm_area_struct *vma,
put_page(fault_page); put_page(fault_page);
return ret; return ret;
} }
do_set_pte(vma, address, fault_page, pte, true, false, false); do_set_pte(vma, address, fault_page, pte, true, false);
pte_unmap_unlock(pte, ptl); pte_unmap_unlock(pte, ptl);
if (set_page_dirty(fault_page)) if (set_page_dirty(fault_page))

12
mm/mempool.c
View file

@ -104,20 +104,16 @@ static inline void poison_element(mempool_t *pool, void *element)
static void kasan_poison_element(mempool_t *pool, void *element) static void kasan_poison_element(mempool_t *pool, void *element)
{ {
if (pool->alloc == mempool_alloc_slab) if (pool->alloc == mempool_alloc_slab || pool->alloc == mempool_kmalloc)
kasan_poison_slab_free(pool->pool_data, element); kasan_poison_kfree(element);
if (pool->alloc == mempool_kmalloc)
kasan_kfree(element);
if (pool->alloc == mempool_alloc_pages) if (pool->alloc == mempool_alloc_pages)
kasan_free_pages(element, (unsigned long)pool->pool_data); kasan_free_pages(element, (unsigned long)pool->pool_data);
} }
static void kasan_unpoison_element(mempool_t *pool, void *element, gfp_t flags) static void kasan_unpoison_element(mempool_t *pool, void *element, gfp_t flags)
{ {
if (pool->alloc == mempool_alloc_slab) if (pool->alloc == mempool_alloc_slab || pool->alloc == mempool_kmalloc)
kasan_slab_alloc(pool->pool_data, element, flags); kasan_unpoison_slab(element);
if (pool->alloc == mempool_kmalloc)
kasan_krealloc(element, (size_t)pool->pool_data, flags);
if (pool->alloc == mempool_alloc_pages) if (pool->alloc == mempool_alloc_pages)
kasan_alloc_pages(element, (unsigned long)pool->pool_data); kasan_alloc_pages(element, (unsigned long)pool->pool_data);
} }

7
mm/oom_kill.c
View file

@ -474,13 +474,8 @@ static bool __oom_reap_task(struct task_struct *tsk)
p = find_lock_task_mm(tsk); p = find_lock_task_mm(tsk);
if (!p) if (!p)
goto unlock_oom; goto unlock_oom;
mm = p->mm; mm = p->mm;
if (!atomic_inc_not_zero(&mm->mm_users)) { atomic_inc(&mm->mm_users);
task_unlock(p);
goto unlock_oom;
}
task_unlock(p); task_unlock(p);
if (!down_read_trylock(&mm->mmap_sem)) { if (!down_read_trylock(&mm->mmap_sem)) {

6
mm/page_owner.c
View file

@ -207,13 +207,15 @@ void __dump_page_owner(struct page *page)
.nr_entries = page_ext->nr_entries, .nr_entries = page_ext->nr_entries,
.entries = &page_ext->trace_entries[0], .entries = &page_ext->trace_entries[0],
}; };
gfp_t gfp_mask = page_ext->gfp_mask; gfp_t gfp_mask;
int mt = gfpflags_to_migratetype(gfp_mask); int mt;
if (unlikely(!page_ext)) { if (unlikely(!page_ext)) {
pr_alert("There is not page extension available.\n"); pr_alert("There is not page extension available.\n");
return; return;
} }
gfp_mask = page_ext->gfp_mask;
mt = gfpflags_to_migratetype(gfp_mask);
if (!test_bit(PAGE_EXT_OWNER, &page_ext->flags)) { if (!test_bit(PAGE_EXT_OWNER, &page_ext->flags)) {
pr_alert("page_owner info is not active (free page?)\n"); pr_alert("page_owner info is not active (free page?)\n");

2
mm/shmem.c
View file

@ -2227,7 +2227,7 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
/* Remove the !PageUptodate pages we added */ /* Remove the !PageUptodate pages we added */
shmem_undo_range(inode, shmem_undo_range(inode,
(loff_t)start << PAGE_SHIFT, (loff_t)start << PAGE_SHIFT,
(loff_t)index << PAGE_SHIFT, true); ((loff_t)index << PAGE_SHIFT) - 1, true);
goto undone; goto undone;
} }

11
mm/swap.c
View file

@ -242,7 +242,7 @@ void rotate_reclaimable_page(struct page *page)
get_page(page); get_page(page);
local_irq_save(flags); local_irq_save(flags);
pvec = this_cpu_ptr(&lru_rotate_pvecs); pvec = this_cpu_ptr(&lru_rotate_pvecs);
if (!pagevec_add(pvec, page)) if (!pagevec_add(pvec, page) || PageCompound(page))
pagevec_move_tail(pvec); pagevec_move_tail(pvec);
local_irq_restore(flags); local_irq_restore(flags);
} }
@ -296,7 +296,7 @@ void activate_page(struct page *page)
struct pagevec *pvec = &get_cpu_var(activate_page_pvecs); struct pagevec *pvec = &get_cpu_var(activate_page_pvecs);
get_page(page); get_page(page);
if (!pagevec_add(pvec, page)) if (!pagevec_add(pvec, page) || PageCompound(page))
pagevec_lru_move_fn(pvec, __activate_page, NULL); pagevec_lru_move_fn(pvec, __activate_page, NULL);
put_cpu_var(activate_page_pvecs); put_cpu_var(activate_page_pvecs);
} }
@ -391,9 +391,8 @@ static void __lru_cache_add(struct page *page)
struct pagevec *pvec = &get_cpu_var(lru_add_pvec); struct pagevec *pvec = &get_cpu_var(lru_add_pvec);
get_page(page); get_page(page);
if (!pagevec_space(pvec)) if (!pagevec_add(pvec, page) || PageCompound(page))
__pagevec_lru_add(pvec); __pagevec_lru_add(pvec);
pagevec_add(pvec, page);
put_cpu_var(lru_add_pvec); put_cpu_var(lru_add_pvec);
} }
@ -628,7 +627,7 @@ void deactivate_file_page(struct page *page)
if (likely(get_page_unless_zero(page))) { if (likely(get_page_unless_zero(page))) {
struct pagevec *pvec = &get_cpu_var(lru_deactivate_file_pvecs); struct pagevec *pvec = &get_cpu_var(lru_deactivate_file_pvecs);
if (!pagevec_add(pvec, page)) if (!pagevec_add(pvec, page) || PageCompound(page))
pagevec_lru_move_fn(pvec, lru_deactivate_file_fn, NULL); pagevec_lru_move_fn(pvec, lru_deactivate_file_fn, NULL);
put_cpu_var(lru_deactivate_file_pvecs); put_cpu_var(lru_deactivate_file_pvecs);
} }
@ -648,7 +647,7 @@ void deactivate_page(struct page *page)
struct pagevec *pvec = &get_cpu_var(lru_deactivate_pvecs); struct pagevec *pvec = &get_cpu_var(lru_deactivate_pvecs);
get_page(page); get_page(page);
if (!pagevec_add(pvec, page)) if (!pagevec_add(pvec, page) || PageCompound(page))
pagevec_lru_move_fn(pvec, lru_deactivate_fn, NULL); pagevec_lru_move_fn(pvec, lru_deactivate_fn, NULL);
put_cpu_var(lru_deactivate_pvecs); put_cpu_var(lru_deactivate_pvecs);
} }

2
tools/testing/selftests/vm/compaction_test.c
View file

@ -136,7 +136,7 @@ int check_compaction(unsigned long mem_free, unsigned int hugepage_size)
printf("No of huge pages allocated = %d\n", printf("No of huge pages allocated = %d\n",
(atoi(nr_hugepages))); (atoi(nr_hugepages)));
if (write(fd, initial_nr_hugepages, sizeof(initial_nr_hugepages)) if (write(fd, initial_nr_hugepages, strlen(initial_nr_hugepages))
!= strlen(initial_nr_hugepages)) { != strlen(initial_nr_hugepages)) {
perror("Failed to write to /proc/sys/vm/nr_hugepages\n"); perror("Failed to write to /proc/sys/vm/nr_hugepages\n");
goto close_fd; goto close_fd;

2
tools/vm/slabinfo.c
View file

@ -492,7 +492,7 @@ static void slab_stats(struct slabinfo *s)
s->deactivate_to_head + s->deactivate_to_tail + s->deactivate_bypass; s->deactivate_to_head + s->deactivate_to_tail + s->deactivate_bypass;
if (total) { if (total) {
printf("\nSlab Deactivation Ocurrences %%\n"); printf("\nSlab Deactivation Occurrences %%\n");
printf("-------------------------------------------------\n"); printf("-------------------------------------------------\n");
printf("Slab full %7lu %3lu%%\n", printf("Slab full %7lu %3lu%%\n",
s->deactivate_full, (s->deactivate_full * 100) / total); s->deactivate_full, (s->deactivate_full * 100) / total);