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Subject[PATCH v2 1/4] kmemcheck: remove annotations
Date
Remove kmemcheck annotations, and calls to kmemcheck from the kernel.

Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
---
arch/arm/include/asm/dma-iommu.h | 1 -
arch/openrisc/include/asm/dma-mapping.h | 1 -
arch/x86/Makefile | 5 -----
arch/x86/include/asm/dma-mapping.h | 1 -
arch/x86/include/asm/xor.h | 5 +----
arch/x86/kernel/traps.c | 5 -----
arch/x86/mm/fault.c | 6 ------
drivers/char/random.c | 1 -
drivers/misc/c2port/core.c | 2 --
fs/dcache.c | 2 --
include/linux/c2port.h | 4 ----
include/linux/dma-mapping.h | 4 ----
include/linux/filter.h | 2 --
include/linux/mm_types.h | 8 --------
include/linux/net.h | 3 ---
include/linux/ring_buffer.h | 3 ---
include/linux/skbuff.h | 3 ---
include/net/inet_sock.h | 3 ---
include/net/inet_timewait_sock.h | 4 ----
include/net/sock.h | 3 ---
init/main.c | 1 -
kernel/bpf/core.c | 6 ------
kernel/locking/lockdep.c | 3 ---
kernel/trace/ring_buffer.c | 3 ---
mm/kmemleak.c | 9 ---------
mm/page_alloc.c | 14 --------------
mm/slab.c | 14 --------------
mm/slab.h | 2 --
mm/slub.c | 20 --------------------
net/core/skbuff.c | 5 -----
net/core/sock.c | 2 --
net/ipv4/inet_timewait_sock.c | 3 ---
net/ipv4/tcp_input.c | 1 -
net/socket.c | 1 -
34 files changed, 1 insertion(+), 149 deletions(-)

diff --git a/arch/arm/include/asm/dma-iommu.h b/arch/arm/include/asm/dma-iommu.h
index c090ec675eac..5ad676f2de22 100644
--- a/arch/arm/include/asm/dma-iommu.h
+++ b/arch/arm/include/asm/dma-iommu.h
@@ -6,7 +6,6 @@
#include <linux/mm_types.h>
#include <linux/scatterlist.h>
#include <linux/dma-debug.h>
-#include <linux/kmemcheck.h>
#include <linux/kref.h>

#define ARM_MAPPING_ERROR (~(dma_addr_t)0x0)
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index f41bd3cb76d9..e212a1f0b6d2 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -23,7 +23,6 @@
*/

#include <linux/dma-debug.h>
-#include <linux/kmemcheck.h>
#include <linux/dma-mapping.h>

extern const struct dma_map_ops or1k_dma_map_ops;
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 6276572259c8..559eb0a282fd 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -157,11 +157,6 @@ ifdef CONFIG_X86_X32
endif
export CONFIG_X86_X32_ABI

-# Don't unroll struct assignments with kmemcheck enabled
-ifeq ($(CONFIG_KMEMCHECK),y)
- KBUILD_CFLAGS += $(call cc-option,-fno-builtin-memcpy)
-endif
-
#
# If the function graph tracer is used with mcount instead of fentry,
# '-maccumulate-outgoing-args' is needed to prevent a GCC bug
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 1387dafdba2d..bd974c04c9aa 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -6,7 +6,6 @@
* Documentation/DMA-API.txt for documentation.
*/

-#include <linux/kmemcheck.h>
#include <linux/scatterlist.h>
#include <linux/dma-debug.h>
#include <asm/io.h>
diff --git a/arch/x86/include/asm/xor.h b/arch/x86/include/asm/xor.h
index 1f5c5161ead6..45c8605467f1 100644
--- a/arch/x86/include/asm/xor.h
+++ b/arch/x86/include/asm/xor.h
@@ -1,7 +1,4 @@
-#ifdef CONFIG_KMEMCHECK
-/* kmemcheck doesn't handle MMX/SSE/SSE2 instructions */
-# include <asm-generic/xor.h>
-#elif !defined(_ASM_X86_XOR_H)
+#ifndef _ASM_X86_XOR_H
#define _ASM_X86_XOR_H

/*
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 67db4f43309e..969bb67e06f4 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -42,7 +42,6 @@
#include <linux/edac.h>
#endif

-#include <asm/kmemcheck.h>
#include <asm/stacktrace.h>
#include <asm/processor.h>
#include <asm/debugreg.h>
@@ -740,10 +739,6 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
if (!dr6 && user_mode(regs))
user_icebp = 1;

- /* Catch kmemcheck conditions! */
- if ((dr6 & DR_STEP) && kmemcheck_trap(regs))
- goto exit;
-
/* Store the virtualized DR6 value */
tsk->thread.debugreg6 = dr6;

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index e2baeaa053a5..a4f96448bc7a 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -19,7 +19,6 @@
#include <asm/cpufeature.h> /* boot_cpu_has, ... */
#include <asm/traps.h> /* dotraplinkage, ... */
#include <asm/pgalloc.h> /* pgd_*(), ... */
-#include <asm/kmemcheck.h> /* kmemcheck_*(), ... */
#include <asm/fixmap.h> /* VSYSCALL_ADDR */
#include <asm/vsyscall.h> /* emulate_vsyscall */
#include <asm/vm86.h> /* struct vm86 */
@@ -1275,8 +1274,6 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
* Detect and handle instructions that would cause a page fault for
* both a tracked kernel page and a userspace page.
*/
- if (kmemcheck_active(regs))
- kmemcheck_hide(regs);
prefetchw(&mm->mmap_sem);

if (unlikely(kmmio_fault(regs, address)))
@@ -1299,9 +1296,6 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
if (!(error_code & (PF_RSVD | PF_USER | PF_PROT))) {
if (vmalloc_fault(address) >= 0)
return;
-
- if (kmemcheck_fault(regs, address, error_code))
- return;
}

/* Can handle a stale RO->RW TLB: */
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 8ad92707e45f..ea0115cf5fc0 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -259,7 +259,6 @@
#include <linux/cryptohash.h>
#include <linux/fips.h>
#include <linux/ptrace.h>
-#include <linux/kmemcheck.h>
#include <linux/workqueue.h>
#include <linux/irq.h>
#include <linux/syscalls.h>
diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
index 1922cb8f6b88..1c5b7aec13d4 100644
--- a/drivers/misc/c2port/core.c
+++ b/drivers/misc/c2port/core.c
@@ -15,7 +15,6 @@
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/kernel.h>
-#include <linux/kmemcheck.h>
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/idr.h>
@@ -904,7 +903,6 @@ struct c2port_device *c2port_device_register(char *name,
return ERR_PTR(-EINVAL);

c2dev = kmalloc(sizeof(struct c2port_device), GFP_KERNEL);
- kmemcheck_annotate_bitfield(c2dev, flags);
if (unlikely(!c2dev))
return ERR_PTR(-ENOMEM);

diff --git a/fs/dcache.c b/fs/dcache.c
index f90141387f01..96f3af133ee6 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2705,8 +2705,6 @@ static void swap_names(struct dentry *dentry, struct dentry *target)
*/
unsigned int i;
BUILD_BUG_ON(!IS_ALIGNED(DNAME_INLINE_LEN, sizeof(long)));
- kmemcheck_mark_initialized(dentry->d_iname, DNAME_INLINE_LEN);
- kmemcheck_mark_initialized(target->d_iname, DNAME_INLINE_LEN);
for (i = 0; i < DNAME_INLINE_LEN / sizeof(long); i++) {
swap(((long *) &dentry->d_iname)[i],
((long *) &target->d_iname)[i]);
diff --git a/include/linux/c2port.h b/include/linux/c2port.h
index 4efabcb51347..f2736348ca26 100644
--- a/include/linux/c2port.h
+++ b/include/linux/c2port.h
@@ -9,8 +9,6 @@
* the Free Software Foundation
*/

-#include <linux/kmemcheck.h>
-
#define C2PORT_NAME_LEN 32

struct device;
@@ -22,10 +20,8 @@ struct device;
/* Main struct */
struct c2port_ops;
struct c2port_device {
- kmemcheck_bitfield_begin(flags);
unsigned int access:1;
unsigned int flash_access:1;
- kmemcheck_bitfield_end(flags);

int id;
char name[C2PORT_NAME_LEN];
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 29ce9815da87..83f3ab31efc4 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -8,7 +8,6 @@
#include <linux/dma-debug.h>
#include <linux/dma-direction.h>
#include <linux/scatterlist.h>
-#include <linux/kmemcheck.h>
#include <linux/bug.h>
#include <linux/mem_encrypt.h>

@@ -229,7 +228,6 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr,
const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;

- kmemcheck_mark_initialized(ptr, size);
BUG_ON(!valid_dma_direction(dir));
addr = ops->map_page(dev, virt_to_page(ptr),
offset_in_page(ptr), size,
@@ -266,7 +264,6 @@ static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
struct scatterlist *s;

for_each_sg(sg, s, nents, i)
- kmemcheck_mark_initialized(sg_virt(s), s->length);
BUG_ON(!valid_dma_direction(dir));
ents = ops->map_sg(dev, sg, nents, dir, attrs);
BUG_ON(ents < 0);
@@ -296,7 +293,6 @@ static inline dma_addr_t dma_map_page_attrs(struct device *dev,
const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;

- kmemcheck_mark_initialized(page_address(page) + offset, size);
BUG_ON(!valid_dma_direction(dir));
addr = ops->map_page(dev, page, offset, size, dir, attrs);
debug_dma_map_page(dev, page, offset, size, dir, addr, false);
diff --git a/include/linux/filter.h b/include/linux/filter.h
index d29e58fde364..9a0022cd70c6 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -453,13 +453,11 @@ struct bpf_binary_header {

struct bpf_prog {
u16 pages; /* Number of allocated pages */
- kmemcheck_bitfield_begin(meta);
u16 jited:1, /* Is our filter JIT'ed? */
locked:1, /* Program image locked? */
gpl_compatible:1, /* Is filter GPL compatible? */
cb_access:1, /* Is control block accessed? */
dst_needed:1; /* Do we need dst entry? */
- kmemcheck_bitfield_end(meta);
enum bpf_prog_type type; /* Type of BPF program */
u32 len; /* Number of filter blocks */
u32 jited_len; /* Size of jited insns in bytes */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 46f4ecf5479a..804d0e754ab0 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -206,14 +206,6 @@ struct page {
not kmapped, ie. highmem) */
#endif /* WANT_PAGE_VIRTUAL */

-#ifdef CONFIG_KMEMCHECK
- /*
- * kmemcheck wants to track the status of each byte in a page; this
- * is a pointer to such a status block. NULL if not tracked.
- */
- void *shadow;
-#endif
-
#ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS
int _last_cpupid;
#endif
diff --git a/include/linux/net.h b/include/linux/net.h
index d97d80d7fdf8..caeb159abda5 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -22,7 +22,6 @@
#include <linux/random.h>
#include <linux/wait.h>
#include <linux/fcntl.h> /* For O_CLOEXEC and O_NONBLOCK */
-#include <linux/kmemcheck.h>
#include <linux/rcupdate.h>
#include <linux/once.h>
#include <linux/fs.h>
@@ -111,9 +110,7 @@ struct socket_wq {
struct socket {
socket_state state;

- kmemcheck_bitfield_begin(type);
short type;
- kmemcheck_bitfield_end(type);

unsigned long flags;

diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index ee9b461af095..8c0c6d236c49 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -1,7 +1,6 @@
#ifndef _LINUX_RING_BUFFER_H
#define _LINUX_RING_BUFFER_H

-#include <linux/kmemcheck.h>
#include <linux/mm.h>
#include <linux/seq_file.h>
#include <linux/poll.h>
@@ -13,9 +12,7 @@ struct ring_buffer_iter;
* Don't refer to this struct directly, use functions below.
*/
struct ring_buffer_event {
- kmemcheck_bitfield_begin(bitfield);
u32 type_len:5, time_delta:27;
- kmemcheck_bitfield_end(bitfield);

u32 array[];
};
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 72299ef00061..ac4041af7f37 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -15,7 +15,6 @@
#define _LINUX_SKBUFF_H

#include <linux/kernel.h>
-#include <linux/kmemcheck.h>
#include <linux/compiler.h>
#include <linux/time.h>
#include <linux/bug.h>
@@ -704,7 +703,6 @@ struct sk_buff {
/* Following fields are _not_ copied in __copy_skb_header()
* Note that queue_mapping is here mostly to fill a hole.
*/
- kmemcheck_bitfield_begin(flags1);
__u16 queue_mapping;

/* if you move cloned around you also must adapt those constants */
@@ -723,7 +721,6 @@ struct sk_buff {
head_frag:1,
xmit_more:1,
__unused:1; /* one bit hole */
- kmemcheck_bitfield_end(flags1);

/* fields enclosed in headers_start/headers_end are copied
* using a single memcpy() in __copy_skb_header()
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index aa95053dfc78..21c3e4d73b88 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -17,7 +17,6 @@
#define _INET_SOCK_H

#include <linux/bitops.h>
-#include <linux/kmemcheck.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/jhash.h>
@@ -84,7 +83,6 @@ struct inet_request_sock {
#define ireq_state req.__req_common.skc_state
#define ireq_family req.__req_common.skc_family

- kmemcheck_bitfield_begin(flags);
u16 snd_wscale : 4,
rcv_wscale : 4,
tstamp_ok : 1,
@@ -93,7 +91,6 @@ struct inet_request_sock {
ecn_ok : 1,
acked : 1,
no_srccheck: 1;
- kmemcheck_bitfield_end(flags);
u32 ir_mark;
union {
struct ip_options_rcu *opt;
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index 6a75d67a30fd..1356fa6a7566 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -15,8 +15,6 @@
#ifndef _INET_TIMEWAIT_SOCK_
#define _INET_TIMEWAIT_SOCK_

-
-#include <linux/kmemcheck.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/types.h>
@@ -69,14 +67,12 @@ struct inet_timewait_sock {
/* Socket demultiplex comparisons on incoming packets. */
/* these three are in inet_sock */
__be16 tw_sport;
- kmemcheck_bitfield_begin(flags);
/* And these are ours. */
unsigned int tw_kill : 1,
tw_transparent : 1,
tw_flowlabel : 20,
tw_pad : 2, /* 2 bits hole */
tw_tos : 8;
- kmemcheck_bitfield_end(flags);
struct timer_list tw_timer;
struct inet_bind_bucket *tw_tb;
};
diff --git a/include/net/sock.h b/include/net/sock.h
index a6b9a8d1a6df..06bbe2df544f 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -436,7 +436,6 @@ struct sock {
#define SK_FL_TYPE_MASK 0xffff0000
#endif

- kmemcheck_bitfield_begin(flags);
unsigned int sk_padding : 1,
sk_kern_sock : 1,
sk_no_check_tx : 1,
@@ -445,8 +444,6 @@ struct sock {
sk_protocol : 8,
sk_type : 16;
#define SK_PROTOCOL_MAX U8_MAX
- kmemcheck_bitfield_end(flags);
-
u16 sk_gso_max_segs;
unsigned long sk_lingertime;
struct proto *sk_prot_creator;
diff --git a/init/main.c b/init/main.c
index 0ee9c6866ada..0e4d39c2ec82 100644
--- a/init/main.c
+++ b/init/main.c
@@ -69,7 +69,6 @@
#include <linux/kgdb.h>
#include <linux/ftrace.h>
#include <linux/async.h>
-#include <linux/kmemcheck.h>
#include <linux/sfi.h>
#include <linux/shmem_fs.h>
#include <linux/slab.h>
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 7b62df86be1d..11ad089f2c74 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -85,8 +85,6 @@ struct bpf_prog *bpf_prog_alloc(unsigned int size, gfp_t gfp_extra_flags)
if (fp == NULL)
return NULL;

- kmemcheck_annotate_bitfield(fp, meta);
-
aux = kzalloc(sizeof(*aux), GFP_KERNEL | gfp_extra_flags);
if (aux == NULL) {
vfree(fp);
@@ -127,8 +125,6 @@ struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size,
if (fp == NULL) {
__bpf_prog_uncharge(fp_old->aux->user, delta);
} else {
- kmemcheck_annotate_bitfield(fp, meta);
-
memcpy(fp, fp_old, fp_old->pages * PAGE_SIZE);
fp->pages = pages;
fp->aux->prog = fp;
@@ -662,8 +658,6 @@ static struct bpf_prog *bpf_prog_clone_create(struct bpf_prog *fp_other,

fp = __vmalloc(fp_other->pages * PAGE_SIZE, gfp_flags, PAGE_KERNEL);
if (fp != NULL) {
- kmemcheck_annotate_bitfield(fp, meta);
-
/* aux->prog still points to the fp_other one, so
* when promoting the clone to the real program,
* this still needs to be adapted.
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 44c8d0d17170..a616140f3a2a 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -47,7 +47,6 @@
#include <linux/stringify.h>
#include <linux/bitops.h>
#include <linux/gfp.h>
-#include <linux/kmemcheck.h>
#include <linux/random.h>
#include <linux/jhash.h>

@@ -3233,8 +3232,6 @@ static void __lockdep_init_map(struct lockdep_map *lock, const char *name,
{
int i;

- kmemcheck_mark_initialized(lock, sizeof(*lock));
-
for (i = 0; i < NR_LOCKDEP_CACHING_CLASSES; i++)
lock->class_cache[i] = NULL;

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 81279c6602ff..7e97e75afc6a 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -13,7 +13,6 @@
#include <linux/uaccess.h>
#include <linux/hardirq.h>
#include <linux/kthread.h> /* for self test */
-#include <linux/kmemcheck.h>
#include <linux/module.h>
#include <linux/percpu.h>
#include <linux/mutex.h>
@@ -2055,7 +2054,6 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
}

event = __rb_page_index(tail_page, tail);
- kmemcheck_annotate_bitfield(event, bitfield);

/* account for padding bytes */
local_add(BUF_PAGE_SIZE - tail, &cpu_buffer->entries_bytes);
@@ -2686,7 +2684,6 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
/* We reserved something on the buffer */

event = __rb_page_index(tail_page, tail);
- kmemcheck_annotate_bitfield(event, bitfield);
rb_update_event(cpu_buffer, event, info);

local_inc(&tail_page->entries);
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 7780cd83a495..a74d878f06c3 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -110,7 +110,6 @@
#include <linux/atomic.h>

#include <linux/kasan.h>
-#include <linux/kmemcheck.h>
#include <linux/kmemleak.h>
#include <linux/memory_hotplug.h>

@@ -1238,9 +1237,6 @@ static bool update_checksum(struct kmemleak_object *object)
{
u32 old_csum = object->checksum;

- if (!kmemcheck_is_obj_initialized(object->pointer, object->size))
- return false;
-
kasan_disable_current();
object->checksum = crc32(0, (void *)object->pointer, object->size);
kasan_enable_current();
@@ -1314,11 +1310,6 @@ static void scan_block(void *_start, void *_end,
if (scan_should_stop())
break;

- /* don't scan uninitialized memory */
- if (!kmemcheck_is_obj_initialized((unsigned long)ptr,
- BYTES_PER_POINTER))
- continue;
-
kasan_disable_current();
pointer = *ptr;
kasan_enable_current();
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 77e4d3c5c57b..5dd258c71ea9 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -24,7 +24,6 @@
#include <linux/memblock.h>
#include <linux/compiler.h>
#include <linux/kernel.h>
-#include <linux/kmemcheck.h>
#include <linux/kasan.h>
#include <linux/module.h>
#include <linux/suspend.h>
@@ -1013,7 +1012,6 @@ static __always_inline bool free_pages_prepare(struct page *page,
VM_BUG_ON_PAGE(PageTail(page), page);

trace_mm_page_free(page, order);
- kmemcheck_free_shadow(page, order);

/*
* Check tail pages before head page information is cleared to
@@ -2669,15 +2667,6 @@ void split_page(struct page *page, unsigned int order)
VM_BUG_ON_PAGE(PageCompound(page), page);
VM_BUG_ON_PAGE(!page_count(page), page);

-#ifdef CONFIG_KMEMCHECK
- /*
- * Split shadow pages too, because free(page[0]) would
- * otherwise free the whole shadow.
- */
- if (kmemcheck_page_is_tracked(page))
- split_page(virt_to_page(page[0].shadow), order);
-#endif
-
for (i = 1; i < (1 << order); i++)
set_page_refcounted(page + i);
split_page_owner(page, order);
@@ -4223,9 +4212,6 @@ __alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order, int preferred_nid,
page = NULL;
}

- if (kmemcheck_enabled && page)
- kmemcheck_pagealloc_alloc(page, order, gfp_mask);
-
trace_mm_page_alloc(page, order, alloc_mask, ac.migratetype);

return page;
diff --git a/mm/slab.c b/mm/slab.c
index 04dec48c3ed7..726bf0a90073 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -113,7 +113,6 @@
#include <linux/rtmutex.h>
#include <linux/reciprocal_div.h>
#include <linux/debugobjects.h>
-#include <linux/kmemcheck.h>
#include <linux/memory.h>
#include <linux/prefetch.h>
#include <linux/sched/task_stack.h>
@@ -1434,15 +1433,6 @@ static struct page *kmem_getpages(struct kmem_cache *cachep, gfp_t flags,
if (sk_memalloc_socks() && page_is_pfmemalloc(page))
SetPageSlabPfmemalloc(page);

- if (kmemcheck_enabled && !(cachep->flags & SLAB_NOTRACK)) {
- kmemcheck_alloc_shadow(page, cachep->gfporder, flags, nodeid);
-
- if (cachep->ctor)
- kmemcheck_mark_uninitialized_pages(page, nr_pages);
- else
- kmemcheck_mark_unallocated_pages(page, nr_pages);
- }
-
return page;
}

@@ -1454,8 +1444,6 @@ static void kmem_freepages(struct kmem_cache *cachep, struct page *page)
int order = cachep->gfporder;
unsigned long nr_freed = (1 << order);

- kmemcheck_free_shadow(page, order);
-
if (cachep->flags & SLAB_RECLAIM_ACCOUNT)
mod_lruvec_page_state(page, NR_SLAB_RECLAIMABLE, -nr_freed);
else
@@ -3515,8 +3503,6 @@ void ___cache_free(struct kmem_cache *cachep, void *objp,
kmemleak_free_recursive(objp, cachep->flags);
objp = cache_free_debugcheck(cachep, objp, caller);

- kmemcheck_slab_free(cachep, objp, cachep->object_size);
-
/*
* Skip calling cache_free_alien() when the platform is not numa.
* This will avoid cache misses that happen while accessing slabp (which
diff --git a/mm/slab.h b/mm/slab.h
index 073362816acc..fbd66e8b376b 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -39,7 +39,6 @@ struct kmem_cache {

#include <linux/memcontrol.h>
#include <linux/fault-inject.h>
-#include <linux/kmemcheck.h>
#include <linux/kasan.h>
#include <linux/kmemleak.h>
#include <linux/random.h>
@@ -438,7 +437,6 @@ static inline void slab_post_alloc_hook(struct kmem_cache *s, gfp_t flags,
for (i = 0; i < size; i++) {
void *object = p[i];

- kmemcheck_slab_alloc(s, flags, object, slab_ksize(s));
kmemleak_alloc_recursive(object, s->object_size, 1,
s->flags, flags);
kasan_slab_alloc(s, object, flags);
diff --git a/mm/slub.c b/mm/slub.c
index 163352c537ab..3d56ade9c4e1 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -21,7 +21,6 @@
#include <linux/notifier.h>
#include <linux/seq_file.h>
#include <linux/kasan.h>
-#include <linux/kmemcheck.h>
#include <linux/cpu.h>
#include <linux/cpuset.h>
#include <linux/mempolicy.h>
@@ -1374,7 +1373,6 @@ static inline void *slab_free_hook(struct kmem_cache *s, void *x)
unsigned long flags;

local_irq_save(flags);
- kmemcheck_slab_free(s, x, s->object_size);
debug_check_no_locks_freed(x, s->object_size);
local_irq_restore(flags);
}
@@ -1595,22 +1593,6 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
stat(s, ORDER_FALLBACK);
}

- if (kmemcheck_enabled &&
- !(s->flags & (SLAB_NOTRACK | DEBUG_DEFAULT_FLAGS))) {
- int pages = 1 << oo_order(oo);
-
- kmemcheck_alloc_shadow(page, oo_order(oo), alloc_gfp, node);
-
- /*
- * Objects from caches that have a constructor don't get
- * cleared when they're allocated, so we need to do it here.
- */
- if (s->ctor)
- kmemcheck_mark_uninitialized_pages(page, pages);
- else
- kmemcheck_mark_unallocated_pages(page, pages);
- }
-
page->objects = oo_objects(oo);

order = compound_order(page);
@@ -1686,8 +1668,6 @@ static void __free_slab(struct kmem_cache *s, struct page *page)
check_object(s, page, p, SLUB_RED_INACTIVE);
}

- kmemcheck_free_shadow(page, compound_order(page));
-
mod_lruvec_page_state(page,
(s->flags & SLAB_RECLAIM_ACCOUNT) ?
NR_SLAB_RECLAIMABLE : NR_SLAB_UNRECLAIMABLE,
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 16982de649b9..382d6155cd2e 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -41,7 +41,6 @@
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/kmemcheck.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/in.h>
@@ -234,14 +233,12 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
shinfo = skb_shinfo(skb);
memset(shinfo, 0, offsetof(struct skb_shared_info, dataref));
atomic_set(&shinfo->dataref, 1);
- kmemcheck_annotate_variable(shinfo->destructor_arg);

if (flags & SKB_ALLOC_FCLONE) {
struct sk_buff_fclones *fclones;

fclones = container_of(skb, struct sk_buff_fclones, skb1);

- kmemcheck_annotate_bitfield(&fclones->skb2, flags1);
skb->fclone = SKB_FCLONE_ORIG;
refcount_set(&fclones->fclone_ref, 1);

@@ -301,7 +298,6 @@ struct sk_buff *__build_skb(void *data, unsigned int frag_size)
shinfo = skb_shinfo(skb);
memset(shinfo, 0, offsetof(struct skb_shared_info, dataref));
atomic_set(&shinfo->dataref, 1);
- kmemcheck_annotate_variable(shinfo->destructor_arg);

return skb;
}
@@ -1279,7 +1275,6 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
if (!n)
return NULL;

- kmemcheck_annotate_bitfield(n, flags1);
n->fclone = SKB_FCLONE_UNAVAILABLE;
}

diff --git a/net/core/sock.c b/net/core/sock.c
index 23953b741a41..8ae068b888ab 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1469,8 +1469,6 @@ static struct sock *sk_prot_alloc(struct proto *prot, gfp_t priority,
sk = kmalloc(prot->obj_size, priority);

if (sk != NULL) {
- kmemcheck_annotate_bitfield(sk, flags);
-
if (security_sk_alloc(sk, family, priority))
goto out_free;

diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 5b039159e67a..d451b9f19b59 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -9,7 +9,6 @@
*/

#include <linux/kernel.h>
-#include <linux/kmemcheck.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <net/inet_hashtables.h>
@@ -167,8 +166,6 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk,
if (tw) {
const struct inet_sock *inet = inet_sk(sk);

- kmemcheck_annotate_bitfield(tw, flags);
-
tw->tw_dr = dr;
/* Give us an identity. */
tw->tw_daddr = inet->inet_daddr;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index c5d7656beeee..4d2e31273a25 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -6195,7 +6195,6 @@ struct request_sock *inet_reqsk_alloc(const struct request_sock_ops *ops,
if (req) {
struct inet_request_sock *ireq = inet_rsk(req);

- kmemcheck_annotate_bitfield(ireq, flags);
ireq->opt = NULL;
#if IS_ENABLED(CONFIG_IPV6)
ireq->pktopts = NULL;
diff --git a/net/socket.c b/net/socket.c
index c729625eb5d3..42d8e9c9ccd5 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -568,7 +568,6 @@ struct socket *sock_alloc(void)

sock = SOCKET_I(inode);

- kmemcheck_annotate_bitfield(sock, type);
inode->i_ino = get_next_ino();
inode->i_mode = S_IFSOCK | S_IRWXUGO;
inode->i_uid = current_fsuid();
--
2.11.0
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