kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK
Convert all allocations that used a NOTRACK flag to stop using it. Link: http://lkml.kernel.org/r/20171007030159.22241-3-alexander.levin@verizon.com Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Alexander Potapenko <glider@google.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tim Hansen <devtimhansen@gmail.com> Cc: Vegard Nossum <vegardno@ifi.uio.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Родитель
4950276672
Коммит
75f296d93b
|
@ -57,7 +57,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
|
|||
extern pgd_t *pgd_alloc(struct mm_struct *mm);
|
||||
extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
|
||||
|
||||
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
|
||||
#define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO)
|
||||
|
||||
static inline void clean_pte_table(pte_t *pte)
|
||||
{
|
||||
|
|
|
@ -26,7 +26,7 @@
|
|||
|
||||
#define check_pgt_cache() do { } while (0)
|
||||
|
||||
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
|
||||
#define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO)
|
||||
#define PGD_SIZE (PTRS_PER_PGD * sizeof(pgd_t))
|
||||
|
||||
#if CONFIG_PGTABLE_LEVELS > 2
|
||||
|
|
|
@ -18,7 +18,7 @@ static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
|
|||
}
|
||||
#endif /* MODULE */
|
||||
|
||||
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
|
||||
#define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO)
|
||||
|
||||
#ifdef CONFIG_PPC_BOOK3S
|
||||
#include <asm/book3s/pgalloc.h>
|
||||
|
|
|
@ -1172,11 +1172,11 @@ static int __init dwarf_unwinder_init(void)
|
|||
|
||||
dwarf_frame_cachep = kmem_cache_create("dwarf_frames",
|
||||
sizeof(struct dwarf_frame), 0,
|
||||
SLAB_PANIC | SLAB_HWCACHE_ALIGN | SLAB_NOTRACK, NULL);
|
||||
SLAB_PANIC | SLAB_HWCACHE_ALIGN, NULL);
|
||||
|
||||
dwarf_reg_cachep = kmem_cache_create("dwarf_regs",
|
||||
sizeof(struct dwarf_reg), 0,
|
||||
SLAB_PANIC | SLAB_HWCACHE_ALIGN | SLAB_NOTRACK, NULL);
|
||||
SLAB_PANIC | SLAB_HWCACHE_ALIGN, NULL);
|
||||
|
||||
dwarf_frame_pool = mempool_create_slab_pool(DWARF_FRAME_MIN_REQ,
|
||||
dwarf_frame_cachep);
|
||||
|
|
|
@ -59,7 +59,7 @@ void arch_task_cache_init(void)
|
|||
|
||||
task_xstate_cachep = kmem_cache_create("task_xstate", xstate_size,
|
||||
__alignof__(union thread_xstate),
|
||||
SLAB_PANIC | SLAB_NOTRACK, NULL);
|
||||
SLAB_PANIC, NULL);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SH_FPU_EMU
|
||||
|
|
|
@ -2927,7 +2927,7 @@ void __flush_tlb_all(void)
|
|||
pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
|
||||
unsigned long address)
|
||||
{
|
||||
struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
|
||||
struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
|
||||
pte_t *pte = NULL;
|
||||
|
||||
if (page)
|
||||
|
@ -2939,7 +2939,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
|
|||
pgtable_t pte_alloc_one(struct mm_struct *mm,
|
||||
unsigned long address)
|
||||
{
|
||||
struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
|
||||
struct page *page = alloc_page(GFP_KERNEL | __GFP_ZERO);
|
||||
if (!page)
|
||||
return NULL;
|
||||
if (!pgtable_page_ctor(page)) {
|
||||
|
|
|
@ -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_free(mm, pgd) free_pgd_slow(mm, pgd)
|
||||
|
||||
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
|
||||
#define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO)
|
||||
|
||||
/*
|
||||
* Allocate one PTE table.
|
||||
|
|
|
@ -57,7 +57,7 @@
|
|||
# error "Need more virtual address space for the ESPFIX hack"
|
||||
#endif
|
||||
|
||||
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
|
||||
#define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO)
|
||||
|
||||
/* This contains the *bottom* address of the espfix stack */
|
||||
DEFINE_PER_CPU_READ_MOSTLY(unsigned long, espfix_stack);
|
||||
|
|
|
@ -92,8 +92,7 @@ __ref void *alloc_low_pages(unsigned int num)
|
|||
unsigned int order;
|
||||
|
||||
order = get_order((unsigned long)num << PAGE_SHIFT);
|
||||
return (void *)__get_free_pages(GFP_ATOMIC | __GFP_NOTRACK |
|
||||
__GFP_ZERO, order);
|
||||
return (void *)__get_free_pages(GFP_ATOMIC | __GFP_ZERO, order);
|
||||
}
|
||||
|
||||
if ((pgt_buf_end + num) > pgt_buf_top || !can_use_brk_pgt) {
|
||||
|
|
|
@ -184,7 +184,7 @@ static __ref void *spp_getpage(void)
|
|||
void *ptr;
|
||||
|
||||
if (after_bootmem)
|
||||
ptr = (void *) get_zeroed_page(GFP_ATOMIC | __GFP_NOTRACK);
|
||||
ptr = (void *) get_zeroed_page(GFP_ATOMIC);
|
||||
else
|
||||
ptr = alloc_bootmem_pages(PAGE_SIZE);
|
||||
|
||||
|
|
|
@ -753,7 +753,7 @@ static int split_large_page(struct cpa_data *cpa, pte_t *kpte,
|
|||
|
||||
if (!debug_pagealloc_enabled())
|
||||
spin_unlock(&cpa_lock);
|
||||
base = alloc_pages(GFP_KERNEL | __GFP_NOTRACK, 0);
|
||||
base = alloc_pages(GFP_KERNEL, 0);
|
||||
if (!debug_pagealloc_enabled())
|
||||
spin_lock(&cpa_lock);
|
||||
if (!base)
|
||||
|
@ -904,7 +904,7 @@ static void unmap_pud_range(p4d_t *p4d, unsigned long start, unsigned long end)
|
|||
|
||||
static int alloc_pte_page(pmd_t *pmd)
|
||||
{
|
||||
pte_t *pte = (pte_t *)get_zeroed_page(GFP_KERNEL | __GFP_NOTRACK);
|
||||
pte_t *pte = (pte_t *)get_zeroed_page(GFP_KERNEL);
|
||||
if (!pte)
|
||||
return -1;
|
||||
|
||||
|
@ -914,7 +914,7 @@ static int alloc_pte_page(pmd_t *pmd)
|
|||
|
||||
static int alloc_pmd_page(pud_t *pud)
|
||||
{
|
||||
pmd_t *pmd = (pmd_t *)get_zeroed_page(GFP_KERNEL | __GFP_NOTRACK);
|
||||
pmd_t *pmd = (pmd_t *)get_zeroed_page(GFP_KERNEL);
|
||||
if (!pmd)
|
||||
return -1;
|
||||
|
||||
|
@ -1120,7 +1120,7 @@ static int populate_pgd(struct cpa_data *cpa, unsigned long addr)
|
|||
pgd_entry = cpa->pgd + pgd_index(addr);
|
||||
|
||||
if (pgd_none(*pgd_entry)) {
|
||||
p4d = (p4d_t *)get_zeroed_page(GFP_KERNEL | __GFP_NOTRACK);
|
||||
p4d = (p4d_t *)get_zeroed_page(GFP_KERNEL);
|
||||
if (!p4d)
|
||||
return -1;
|
||||
|
||||
|
@ -1132,7 +1132,7 @@ static int populate_pgd(struct cpa_data *cpa, unsigned long addr)
|
|||
*/
|
||||
p4d = p4d_offset(pgd_entry, addr);
|
||||
if (p4d_none(*p4d)) {
|
||||
pud = (pud_t *)get_zeroed_page(GFP_KERNEL | __GFP_NOTRACK);
|
||||
pud = (pud_t *)get_zeroed_page(GFP_KERNEL);
|
||||
if (!pud)
|
||||
return -1;
|
||||
|
||||
|
|
|
@ -7,7 +7,7 @@
|
|||
#include <asm/fixmap.h>
|
||||
#include <asm/mtrr.h>
|
||||
|
||||
#define PGALLOC_GFP (GFP_KERNEL_ACCOUNT | __GFP_NOTRACK | __GFP_ZERO)
|
||||
#define PGALLOC_GFP (GFP_KERNEL_ACCOUNT | __GFP_ZERO)
|
||||
|
||||
#ifdef CONFIG_HIGHPTE
|
||||
#define PGALLOC_USER_GFP __GFP_HIGHMEM
|
||||
|
|
|
@ -207,7 +207,7 @@ int __init efi_alloc_page_tables(void)
|
|||
if (efi_enabled(EFI_OLD_MEMMAP))
|
||||
return 0;
|
||||
|
||||
gfp_mask = GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO;
|
||||
gfp_mask = GFP_KERNEL | __GFP_ZERO;
|
||||
efi_pgd = (pgd_t *)__get_free_page(gfp_mask);
|
||||
if (!efi_pgd)
|
||||
return -ENOMEM;
|
||||
|
|
|
@ -122,12 +122,7 @@ calibrate_xor_blocks(void)
|
|||
goto out;
|
||||
}
|
||||
|
||||
/*
|
||||
* Note: Since the memory is not actually used for _anything_ but to
|
||||
* test the XOR speed, we don't really want kmemcheck to warn about
|
||||
* reading uninitialized bytes here.
|
||||
*/
|
||||
b1 = (void *) __get_free_pages(GFP_KERNEL | __GFP_NOTRACK, 2);
|
||||
b1 = (void *) __get_free_pages(GFP_KERNEL, 2);
|
||||
if (!b1) {
|
||||
printk(KERN_WARNING "xor: Yikes! No memory available.\n");
|
||||
return -ENOMEM;
|
||||
|
|
|
@ -44,10 +44,9 @@ enum {
|
|||
#endif
|
||||
|
||||
#if IS_ENABLED(CONFIG_DEBUG_STACK_USAGE) || IS_ENABLED(CONFIG_DEBUG_KMEMLEAK)
|
||||
# define THREADINFO_GFP (GFP_KERNEL_ACCOUNT | __GFP_NOTRACK | \
|
||||
__GFP_ZERO)
|
||||
# define THREADINFO_GFP (GFP_KERNEL_ACCOUNT | __GFP_ZERO)
|
||||
#else
|
||||
# define THREADINFO_GFP (GFP_KERNEL_ACCOUNT | __GFP_NOTRACK)
|
||||
# define THREADINFO_GFP (GFP_KERNEL_ACCOUNT)
|
||||
#endif
|
||||
|
||||
/*
|
||||
|
|
|
@ -380,8 +380,7 @@ static int __init do_mount_root(char *name, char *fs, int flags, void *data)
|
|||
|
||||
void __init mount_block_root(char *name, int flags)
|
||||
{
|
||||
struct page *page = alloc_page(GFP_KERNEL |
|
||||
__GFP_NOTRACK_FALSE_POSITIVE);
|
||||
struct page *page = alloc_page(GFP_KERNEL);
|
||||
char *fs_names = page_address(page);
|
||||
char *p;
|
||||
#ifdef CONFIG_BLOCK
|
||||
|
|
|
@ -469,7 +469,7 @@ void __init fork_init(void)
|
|||
/* create a slab on which task_structs can be allocated */
|
||||
task_struct_cachep = kmem_cache_create("task_struct",
|
||||
arch_task_struct_size, align,
|
||||
SLAB_PANIC|SLAB_NOTRACK|SLAB_ACCOUNT, NULL);
|
||||
SLAB_PANIC|SLAB_ACCOUNT, NULL);
|
||||
#endif
|
||||
|
||||
/* do the arch specific task caches init */
|
||||
|
@ -2205,18 +2205,18 @@ void __init proc_caches_init(void)
|
|||
sighand_cachep = kmem_cache_create("sighand_cache",
|
||||
sizeof(struct sighand_struct), 0,
|
||||
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_TYPESAFE_BY_RCU|
|
||||
SLAB_NOTRACK|SLAB_ACCOUNT, sighand_ctor);
|
||||
SLAB_ACCOUNT, sighand_ctor);
|
||||
signal_cachep = kmem_cache_create("signal_cache",
|
||||
sizeof(struct signal_struct), 0,
|
||||
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK|SLAB_ACCOUNT,
|
||||
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT,
|
||||
NULL);
|
||||
files_cachep = kmem_cache_create("files_cache",
|
||||
sizeof(struct files_struct), 0,
|
||||
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK|SLAB_ACCOUNT,
|
||||
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT,
|
||||
NULL);
|
||||
fs_cachep = kmem_cache_create("fs_cache",
|
||||
sizeof(struct fs_struct), 0,
|
||||
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK|SLAB_ACCOUNT,
|
||||
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT,
|
||||
NULL);
|
||||
/*
|
||||
* FIXME! The "sizeof(struct mm_struct)" currently includes the
|
||||
|
@ -2227,7 +2227,7 @@ void __init proc_caches_init(void)
|
|||
*/
|
||||
mm_cachep = kmem_cache_create("mm_struct",
|
||||
sizeof(struct mm_struct), ARCH_MIN_MMSTRUCT_ALIGN,
|
||||
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK|SLAB_ACCOUNT,
|
||||
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT,
|
||||
NULL);
|
||||
vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC|SLAB_ACCOUNT);
|
||||
mmap_init();
|
||||
|
|
|
@ -1036,8 +1036,7 @@ static int __send_signal(int sig, struct siginfo *info, struct task_struct *t,
|
|||
else
|
||||
override_rlimit = 0;
|
||||
|
||||
q = __sigqueue_alloc(sig, t, GFP_ATOMIC | __GFP_NOTRACK_FALSE_POSITIVE,
|
||||
override_rlimit);
|
||||
q = __sigqueue_alloc(sig, t, GFP_ATOMIC, override_rlimit);
|
||||
if (q) {
|
||||
list_add_tail(&q->list, &pending->list);
|
||||
switch ((unsigned long) info) {
|
||||
|
|
|
@ -18,7 +18,7 @@ void kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node)
|
|||
* With kmemcheck enabled, we need to allocate a memory area for the
|
||||
* shadow bits as well.
|
||||
*/
|
||||
shadow = alloc_pages_node(node, flags | __GFP_NOTRACK, order);
|
||||
shadow = alloc_pages_node(node, flags, order);
|
||||
if (!shadow) {
|
||||
if (printk_ratelimit())
|
||||
pr_err("kmemcheck: failed to allocate shadow bitmap\n");
|
||||
|
|
|
@ -1410,7 +1410,7 @@ static struct page *kmem_getpages(struct kmem_cache *cachep, gfp_t flags,
|
|||
|
||||
flags |= cachep->allocflags;
|
||||
|
||||
page = __alloc_pages_node(nodeid, flags | __GFP_NOTRACK, cachep->gfporder);
|
||||
page = __alloc_pages_node(nodeid, flags, cachep->gfporder);
|
||||
if (!page) {
|
||||
slab_out_of_memory(cachep, flags, nodeid);
|
||||
return NULL;
|
||||
|
|
|
@ -141,10 +141,10 @@ static inline slab_flags_t kmem_cache_flags(unsigned long object_size,
|
|||
#if defined(CONFIG_SLAB)
|
||||
#define SLAB_CACHE_FLAGS (SLAB_MEM_SPREAD | SLAB_NOLEAKTRACE | \
|
||||
SLAB_RECLAIM_ACCOUNT | SLAB_TEMPORARY | \
|
||||
SLAB_NOTRACK | SLAB_ACCOUNT)
|
||||
SLAB_ACCOUNT)
|
||||
#elif defined(CONFIG_SLUB)
|
||||
#define SLAB_CACHE_FLAGS (SLAB_NOLEAKTRACE | SLAB_RECLAIM_ACCOUNT | \
|
||||
SLAB_TEMPORARY | SLAB_NOTRACK | SLAB_ACCOUNT)
|
||||
SLAB_TEMPORARY | SLAB_ACCOUNT)
|
||||
#else
|
||||
#define SLAB_CACHE_FLAGS (0)
|
||||
#endif
|
||||
|
@ -163,7 +163,6 @@ static inline slab_flags_t kmem_cache_flags(unsigned long object_size,
|
|||
SLAB_NOLEAKTRACE | \
|
||||
SLAB_RECLAIM_ACCOUNT | \
|
||||
SLAB_TEMPORARY | \
|
||||
SLAB_NOTRACK | \
|
||||
SLAB_ACCOUNT)
|
||||
|
||||
int __kmem_cache_shutdown(struct kmem_cache *);
|
||||
|
|
|
@ -44,7 +44,7 @@ static DECLARE_WORK(slab_caches_to_rcu_destroy_work,
|
|||
SLAB_FAILSLAB | SLAB_KASAN)
|
||||
|
||||
#define SLAB_MERGE_SAME (SLAB_RECLAIM_ACCOUNT | SLAB_CACHE_DMA | \
|
||||
SLAB_NOTRACK | SLAB_ACCOUNT)
|
||||
SLAB_ACCOUNT)
|
||||
|
||||
/*
|
||||
* Merge control. If this is set then no merging of slab caches will occur.
|
||||
|
|
|
@ -1436,8 +1436,6 @@ static inline struct page *alloc_slab_page(struct kmem_cache *s,
|
|||
struct page *page;
|
||||
int order = oo_order(oo);
|
||||
|
||||
flags |= __GFP_NOTRACK;
|
||||
|
||||
if (node == NUMA_NO_NODE)
|
||||
page = alloc_pages(flags, order);
|
||||
else
|
||||
|
@ -3774,7 +3772,7 @@ static void *kmalloc_large_node(size_t size, gfp_t flags, int node)
|
|||
struct page *page;
|
||||
void *ptr = NULL;
|
||||
|
||||
flags |= __GFP_COMP | __GFP_NOTRACK;
|
||||
flags |= __GFP_COMP;
|
||||
page = alloc_pages_node(node, flags, get_order(size));
|
||||
if (page)
|
||||
ptr = page_address(page);
|
||||
|
|
Загрузка…
Ссылка в новой задаче