kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK

commit 75f296d93bcebcfe375884ddac79e30263a31766 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

6 files changed, 10 insertions, 11 deletions

diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
index 9c4e7ba6870c..cbded50ee601 100644
--- a/arch/x86/kernel/espfix_64.c
+++ b/arch/x86/kernel/espfix_64.c
@@ -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);
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 6b462a472a7b..fcf38a2a4e7e 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -93,8 +93,7 @@ __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) {
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index adcea90a2046..5fa3a58b5d78 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -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);
 
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index dfb7d657cf43..3ed9a08885c5 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -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;
 
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 9b7bcbd33cc2..004abf9ebf12 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -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
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 61975b6bcb1a..ad5d9538f0f9 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -211,7 +211,7 @@ 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_pages(gfp_mask, PGD_ALLOCATION_ORDER);
 	if (!efi_pgd)
 		return -ENOMEM;