1 files changed, 0 insertions, 742 deletions

diff --git a/ANDROID_3.4.5/arch/x86/kernel/alternative.c b/ANDROID_3.4.5/arch/x86/kernel/alternative.c
deleted file mode 100644
index 1f84794f..00000000
--- a/ANDROID_3.4.5/arch/x86/kernel/alternative.c
+++ /dev/null
@@ -1,742 +0,0 @@
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/stringify.h>
-#include <linux/kprobes.h>
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-#include <linux/memory.h>
-#include <linux/stop_machine.h>
-#include <linux/slab.h>
-#include <asm/alternative.h>
-#include <asm/sections.h>
-#include <asm/pgtable.h>
-#include <asm/mce.h>
-#include <asm/nmi.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
-#include <asm/io.h>
-#include <asm/fixmap.h>
-
-#define MAX_PATCH_LEN (255-1)
-
-#ifdef CONFIG_HOTPLUG_CPU
-static int smp_alt_once;
-
-static int __init bootonly(char *str)
-{
-	smp_alt_once = 1;
-	return 1;
-}
-__setup("smp-alt-boot", bootonly);
-#else
-#define smp_alt_once 1
-#endif
-
-static int __initdata_or_module debug_alternative;
-
-static int __init debug_alt(char *str)
-{
-	debug_alternative = 1;
-	return 1;
-}
-__setup("debug-alternative", debug_alt);
-
-static int noreplace_smp;
-
-static int __init setup_noreplace_smp(char *str)
-{
-	noreplace_smp = 1;
-	return 1;
-}
-__setup("noreplace-smp", setup_noreplace_smp);
-
-#ifdef CONFIG_PARAVIRT
-static int __initdata_or_module noreplace_paravirt = 0;
-
-static int __init setup_noreplace_paravirt(char *str)
-{
-	noreplace_paravirt = 1;
-	return 1;
-}
-__setup("noreplace-paravirt", setup_noreplace_paravirt);
-#endif
-
-#define DPRINTK(fmt, args...) if (debug_alternative) \
-	printk(KERN_DEBUG fmt, args)
-
-/*
- * Each GENERIC_NOPX is of X bytes, and defined as an array of bytes
- * that correspond to that nop. Getting from one nop to the next, we
- * add to the array the offset that is equal to the sum of all sizes of
- * nops preceding the one we are after.
- *
- * Note: The GENERIC_NOP5_ATOMIC is at the end, as it breaks the
- * nice symmetry of sizes of the previous nops.
- */
-#if defined(GENERIC_NOP1) && !defined(CONFIG_X86_64)
-static const unsigned char intelnops[] =
-{
-	GENERIC_NOP1,
-	GENERIC_NOP2,
-	GENERIC_NOP3,
-	GENERIC_NOP4,
-	GENERIC_NOP5,
-	GENERIC_NOP6,
-	GENERIC_NOP7,
-	GENERIC_NOP8,
-	GENERIC_NOP5_ATOMIC
-};
-static const unsigned char * const intel_nops[ASM_NOP_MAX+2] =
-{
-	NULL,
-	intelnops,
-	intelnops + 1,
-	intelnops + 1 + 2,
-	intelnops + 1 + 2 + 3,
-	intelnops + 1 + 2 + 3 + 4,
-	intelnops + 1 + 2 + 3 + 4 + 5,
-	intelnops + 1 + 2 + 3 + 4 + 5 + 6,
-	intelnops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
-	intelnops + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8,
-};
-#endif
-
-#ifdef K8_NOP1
-static const unsigned char k8nops[] =
-{
-	K8_NOP1,
-	K8_NOP2,
-	K8_NOP3,
-	K8_NOP4,
-	K8_NOP5,
-	K8_NOP6,
-	K8_NOP7,
-	K8_NOP8,
-	K8_NOP5_ATOMIC
-};
-static const unsigned char * const k8_nops[ASM_NOP_MAX+2] =
-{
-	NULL,
-	k8nops,
-	k8nops + 1,
-	k8nops + 1 + 2,
-	k8nops + 1 + 2 + 3,
-	k8nops + 1 + 2 + 3 + 4,
-	k8nops + 1 + 2 + 3 + 4 + 5,
-	k8nops + 1 + 2 + 3 + 4 + 5 + 6,
-	k8nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
-	k8nops + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8,
-};
-#endif
-
-#if defined(K7_NOP1) && !defined(CONFIG_X86_64)
-static const unsigned char k7nops[] =
-{
-	K7_NOP1,
-	K7_NOP2,
-	K7_NOP3,
-	K7_NOP4,
-	K7_NOP5,
-	K7_NOP6,
-	K7_NOP7,
-	K7_NOP8,
-	K7_NOP5_ATOMIC
-};
-static const unsigned char * const k7_nops[ASM_NOP_MAX+2] =
-{
-	NULL,
-	k7nops,
-	k7nops + 1,
-	k7nops + 1 + 2,
-	k7nops + 1 + 2 + 3,
-	k7nops + 1 + 2 + 3 + 4,
-	k7nops + 1 + 2 + 3 + 4 + 5,
-	k7nops + 1 + 2 + 3 + 4 + 5 + 6,
-	k7nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
-	k7nops + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8,
-};
-#endif
-
-#ifdef P6_NOP1
-static const unsigned char  __initconst_or_module p6nops[] =
-{
-	P6_NOP1,
-	P6_NOP2,
-	P6_NOP3,
-	P6_NOP4,
-	P6_NOP5,
-	P6_NOP6,
-	P6_NOP7,
-	P6_NOP8,
-	P6_NOP5_ATOMIC
-};
-static const unsigned char * const p6_nops[ASM_NOP_MAX+2] =
-{
-	NULL,
-	p6nops,
-	p6nops + 1,
-	p6nops + 1 + 2,
-	p6nops + 1 + 2 + 3,
-	p6nops + 1 + 2 + 3 + 4,
-	p6nops + 1 + 2 + 3 + 4 + 5,
-	p6nops + 1 + 2 + 3 + 4 + 5 + 6,
-	p6nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
-	p6nops + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8,
-};
-#endif
-
-/* Initialize these to a safe default */
-#ifdef CONFIG_X86_64
-const unsigned char * const *ideal_nops = p6_nops;
-#else
-const unsigned char * const *ideal_nops = intel_nops;
-#endif
-
-void __init arch_init_ideal_nops(void)
-{
-	switch (boot_cpu_data.x86_vendor) {
-	case X86_VENDOR_INTEL:
-		/*
-		 * Due to a decoder implementation quirk, some
-		 * specific Intel CPUs actually perform better with
-		 * the "k8_nops" than with the SDM-recommended NOPs.
-		 */
-		if (boot_cpu_data.x86 == 6 &&
-		    boot_cpu_data.x86_model >= 0x0f &&
-		    boot_cpu_data.x86_model != 0x1c &&
-		    boot_cpu_data.x86_model != 0x26 &&
-		    boot_cpu_data.x86_model != 0x27 &&
-		    boot_cpu_data.x86_model < 0x30) {
-			ideal_nops = k8_nops;
-		} else if (boot_cpu_has(X86_FEATURE_NOPL)) {
-			   ideal_nops = p6_nops;
-		} else {
-#ifdef CONFIG_X86_64
-			ideal_nops = k8_nops;
-#else
-			ideal_nops = intel_nops;
-#endif
-		}
-
-	default:
-#ifdef CONFIG_X86_64
-		ideal_nops = k8_nops;
-#else
-		if (boot_cpu_has(X86_FEATURE_K8))
-			ideal_nops = k8_nops;
-		else if (boot_cpu_has(X86_FEATURE_K7))
-			ideal_nops = k7_nops;
-		else
-			ideal_nops = intel_nops;
-#endif
-	}
-}
-
-/* Use this to add nops to a buffer, then text_poke the whole buffer. */
-static void __init_or_module add_nops(void *insns, unsigned int len)
-{
-	while (len > 0) {
-		unsigned int noplen = len;
-		if (noplen > ASM_NOP_MAX)
-			noplen = ASM_NOP_MAX;
-		memcpy(insns, ideal_nops[noplen], noplen);
-		insns += noplen;
-		len -= noplen;
-	}
-}
-
-extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
-extern s32 __smp_locks[], __smp_locks_end[];
-void *text_poke_early(void *addr, const void *opcode, size_t len);
-
-/* Replace instructions with better alternatives for this CPU type.
-   This runs before SMP is initialized to avoid SMP problems with
-   self modifying code. This implies that asymmetric systems where
-   APs have less capabilities than the boot processor are not handled.
-   Tough. Make sure you disable such features by hand. */
-
-void __init_or_module apply_alternatives(struct alt_instr *start,
-					 struct alt_instr *end)
-{
-	struct alt_instr *a;
-	u8 *instr, *replacement;
-	u8 insnbuf[MAX_PATCH_LEN];
-
-	DPRINTK("%s: alt table %p -> %p\n", __func__, start, end);
-	/*
-	 * The scan order should be from start to end. A later scanned
-	 * alternative code can overwrite a previous scanned alternative code.
-	 * Some kernel functions (e.g. memcpy, memset, etc) use this order to
-	 * patch code.
-	 *
-	 * So be careful if you want to change the scan order to any other
-	 * order.
-	 */
-	for (a = start; a < end; a++) {
-		instr = (u8 *)&a->instr_offset + a->instr_offset;
-		replacement = (u8 *)&a->repl_offset + a->repl_offset;
-		BUG_ON(a->replacementlen > a->instrlen);
-		BUG_ON(a->instrlen > sizeof(insnbuf));
-		BUG_ON(a->cpuid >= NCAPINTS*32);
-		if (!boot_cpu_has(a->cpuid))
-			continue;
-
-		memcpy(insnbuf, replacement, a->replacementlen);
-
-		/* 0xe8 is a relative jump; fix the offset. */
-		if (*insnbuf == 0xe8 && a->replacementlen == 5)
-		    *(s32 *)(insnbuf + 1) += replacement - instr;
-
-		add_nops(insnbuf + a->replacementlen,
-			 a->instrlen - a->replacementlen);
-
-		text_poke_early(instr, insnbuf, a->instrlen);
-	}
-}
-
-#ifdef CONFIG_SMP
-
-static void alternatives_smp_lock(const s32 *start, const s32 *end,
-				  u8 *text, u8 *text_end)
-{
-	const s32 *poff;
-
-	mutex_lock(&text_mutex);
-	for (poff = start; poff < end; poff++) {
-		u8 *ptr = (u8 *)poff + *poff;
-
-		if (!*poff || ptr < text || ptr >= text_end)
-			continue;
-		/* turn DS segment override prefix into lock prefix */
-		if (*ptr == 0x3e)
-			text_poke(ptr, ((unsigned char []){0xf0}), 1);
-	};
-	mutex_unlock(&text_mutex);
-}
-
-static void alternatives_smp_unlock(const s32 *start, const s32 *end,
-				    u8 *text, u8 *text_end)
-{
-	const s32 *poff;
-
-	if (noreplace_smp)
-		return;
-
-	mutex_lock(&text_mutex);
-	for (poff = start; poff < end; poff++) {
-		u8 *ptr = (u8 *)poff + *poff;
-
-		if (!*poff || ptr < text || ptr >= text_end)
-			continue;
-		/* turn lock prefix into DS segment override prefix */
-		if (*ptr == 0xf0)
-			text_poke(ptr, ((unsigned char []){0x3E}), 1);
-	};
-	mutex_unlock(&text_mutex);
-}
-
-struct smp_alt_module {
-	/* what is this ??? */
-	struct module	*mod;
-	char		*name;
-
-	/* ptrs to lock prefixes */
-	const s32	*locks;
-	const s32	*locks_end;
-
-	/* .text segment, needed to avoid patching init code ;) */
-	u8		*text;
-	u8		*text_end;
-
-	struct list_head next;
-};
-static LIST_HEAD(smp_alt_modules);
-static DEFINE_MUTEX(smp_alt);
-static int smp_mode = 1;	/* protected by smp_alt */
-
-void __init_or_module alternatives_smp_module_add(struct module *mod,
-						  char *name,
-						  void *locks, void *locks_end,
-						  void *text,  void *text_end)
-{
-	struct smp_alt_module *smp;
-
-	if (noreplace_smp)
-		return;
-
-	if (smp_alt_once) {
-		if (boot_cpu_has(X86_FEATURE_UP))
-			alternatives_smp_unlock(locks, locks_end,
-						text, text_end);
-		return;
-	}
-
-	smp = kzalloc(sizeof(*smp), GFP_KERNEL);
-	if (NULL == smp)
-		return; /* we'll run the (safe but slow) SMP code then ... */
-
-	smp->mod	= mod;
-	smp->name	= name;
-	smp->locks	= locks;
-	smp->locks_end	= locks_end;
-	smp->text	= text;
-	smp->text_end	= text_end;
-	DPRINTK("%s: locks %p -> %p, text %p -> %p, name %s\n",
-		__func__, smp->locks, smp->locks_end,
-		smp->text, smp->text_end, smp->name);
-
-	mutex_lock(&smp_alt);
-	list_add_tail(&smp->next, &smp_alt_modules);
-	if (boot_cpu_has(X86_FEATURE_UP))
-		alternatives_smp_unlock(smp->locks, smp->locks_end,
-					smp->text, smp->text_end);
-	mutex_unlock(&smp_alt);
-}
-
-void __init_or_module alternatives_smp_module_del(struct module *mod)
-{
-	struct smp_alt_module *item;
-
-	if (smp_alt_once || noreplace_smp)
-		return;
-
-	mutex_lock(&smp_alt);
-	list_for_each_entry(item, &smp_alt_modules, next) {
-		if (mod != item->mod)
-			continue;
-		list_del(&item->next);
-		mutex_unlock(&smp_alt);
-		DPRINTK("%s: %s\n", __func__, item->name);
-		kfree(item);
-		return;
-	}
-	mutex_unlock(&smp_alt);
-}
-
-bool skip_smp_alternatives;
-void alternatives_smp_switch(int smp)
-{
-	struct smp_alt_module *mod;
-
-#ifdef CONFIG_LOCKDEP
-	/*
-	 * Older binutils section handling bug prevented
-	 * alternatives-replacement from working reliably.
-	 *
-	 * If this still occurs then you should see a hang
-	 * or crash shortly after this line:
-	 */
-	printk("lockdep: fixing up alternatives.\n");
-#endif
-
-	if (noreplace_smp || smp_alt_once || skip_smp_alternatives)
-		return;
-	BUG_ON(!smp && (num_online_cpus() > 1));
-
-	mutex_lock(&smp_alt);
-
-	/*
-	 * Avoid unnecessary switches because it forces JIT based VMs to
-	 * throw away all cached translations, which can be quite costly.
-	 */
-	if (smp == smp_mode) {
-		/* nothing */
-	} else if (smp) {
-		printk(KERN_INFO "SMP alternatives: switching to SMP code\n");
-		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
-		clear_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
-		list_for_each_entry(mod, &smp_alt_modules, next)
-			alternatives_smp_lock(mod->locks, mod->locks_end,
-					      mod->text, mod->text_end);
-	} else {
-		printk(KERN_INFO "SMP alternatives: switching to UP code\n");
-		set_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
-		set_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
-		list_for_each_entry(mod, &smp_alt_modules, next)
-			alternatives_smp_unlock(mod->locks, mod->locks_end,
-						mod->text, mod->text_end);
-	}
-	smp_mode = smp;
-	mutex_unlock(&smp_alt);
-}
-
-/* Return 1 if the address range is reserved for smp-alternatives */
-int alternatives_text_reserved(void *start, void *end)
-{
-	struct smp_alt_module *mod;
-	const s32 *poff;
-	u8 *text_start = start;
-	u8 *text_end = end;
-
-	list_for_each_entry(mod, &smp_alt_modules, next) {
-		if (mod->text > text_end || mod->text_end < text_start)
-			continue;
-		for (poff = mod->locks; poff < mod->locks_end; poff++) {
-			const u8 *ptr = (const u8 *)poff + *poff;
-
-			if (text_start <= ptr && text_end > ptr)
-				return 1;
-		}
-	}
-
-	return 0;
-}
-#endif
-
-#ifdef CONFIG_PARAVIRT
-void __init_or_module apply_paravirt(struct paravirt_patch_site *start,
-				     struct paravirt_patch_site *end)
-{
-	struct paravirt_patch_site *p;
-	char insnbuf[MAX_PATCH_LEN];
-
-	if (noreplace_paravirt)
-		return;
-
-	for (p = start; p < end; p++) {
-		unsigned int used;
-
-		BUG_ON(p->len > MAX_PATCH_LEN);
-		/* prep the buffer with the original instructions */
-		memcpy(insnbuf, p->instr, p->len);
-		used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf,
-					 (unsigned long)p->instr, p->len);
-
-		BUG_ON(used > p->len);
-
-		/* Pad the rest with nops */
-		add_nops(insnbuf + used, p->len - used);
-		text_poke_early(p->instr, insnbuf, p->len);
-	}
-}
-extern struct paravirt_patch_site __start_parainstructions[],
-	__stop_parainstructions[];
-#endif	/* CONFIG_PARAVIRT */
-
-void __init alternative_instructions(void)
-{
-	/* The patching is not fully atomic, so try to avoid local interruptions
-	   that might execute the to be patched code.
-	   Other CPUs are not running. */
-	stop_nmi();
-
-	/*
-	 * Don't stop machine check exceptions while patching.
-	 * MCEs only happen when something got corrupted and in this
-	 * case we must do something about the corruption.
-	 * Ignoring it is worse than a unlikely patching race.
-	 * Also machine checks tend to be broadcast and if one CPU
-	 * goes into machine check the others follow quickly, so we don't
-	 * expect a machine check to cause undue problems during to code
-	 * patching.
-	 */
-
-	apply_alternatives(__alt_instructions, __alt_instructions_end);
-
-	/* switch to patch-once-at-boottime-only mode and free the
-	 * tables in case we know the number of CPUs will never ever
-	 * change */
-#ifdef CONFIG_HOTPLUG_CPU
-	if (num_possible_cpus() < 2)
-		smp_alt_once = 1;
-#endif
-
-#ifdef CONFIG_SMP
-	if (smp_alt_once) {
-		if (1 == num_possible_cpus()) {
-			printk(KERN_INFO "SMP alternatives: switching to UP code\n");
-			set_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
-			set_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
-
-			alternatives_smp_unlock(__smp_locks, __smp_locks_end,
-						_text, _etext);
-		}
-	} else {
-		alternatives_smp_module_add(NULL, "core kernel",
-					    __smp_locks, __smp_locks_end,
-					    _text, _etext);
-
-		/* Only switch to UP mode if we don't immediately boot others */
-		if (num_present_cpus() == 1 || setup_max_cpus <= 1)
-			alternatives_smp_switch(0);
-	}
-#endif
- 	apply_paravirt(__parainstructions, __parainstructions_end);
-
-	if (smp_alt_once)
-		free_init_pages("SMP alternatives",
-				(unsigned long)__smp_locks,
-				(unsigned long)__smp_locks_end);
-
-	restart_nmi();
-}
-
-/**
- * text_poke_early - Update instructions on a live kernel at boot time
- * @addr: address to modify
- * @opcode: source of the copy
- * @len: length to copy
- *
- * When you use this code to patch more than one byte of an instruction
- * you need to make sure that other CPUs cannot execute this code in parallel.
- * Also no thread must be currently preempted in the middle of these
- * instructions. And on the local CPU you need to be protected again NMI or MCE
- * handlers seeing an inconsistent instruction while you patch.
- */
-void *__init_or_module text_poke_early(void *addr, const void *opcode,
-					      size_t len)
-{
-	unsigned long flags;
-	local_irq_save(flags);
-	memcpy(addr, opcode, len);
-	sync_core();
-	local_irq_restore(flags);
-	/* Could also do a CLFLUSH here to speed up CPU recovery; but
-	   that causes hangs on some VIA CPUs. */
-	return addr;
-}
-
-/**
- * text_poke - Update instructions on a live kernel
- * @addr: address to modify
- * @opcode: source of the copy
- * @len: length to copy
- *
- * Only atomic text poke/set should be allowed when not doing early patching.
- * It means the size must be writable atomically and the address must be aligned
- * in a way that permits an atomic write. It also makes sure we fit on a single
- * page.
- *
- * Note: Must be called under text_mutex.
- */
-void *__kprobes text_poke(void *addr, const void *opcode, size_t len)
-{
-	unsigned long flags;
-	char *vaddr;
-	struct page *pages[2];
-	int i;
-
-	if (!core_kernel_text((unsigned long)addr)) {
-		pages[0] = vmalloc_to_page(addr);
-		pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
-	} else {
-		pages[0] = virt_to_page(addr);
-		WARN_ON(!PageReserved(pages[0]));
-		pages[1] = virt_to_page(addr + PAGE_SIZE);
-	}
-	BUG_ON(!pages[0]);
-	local_irq_save(flags);
-	set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0]));
-	if (pages[1])
-		set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1]));
-	vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0);
-	memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len);
-	clear_fixmap(FIX_TEXT_POKE0);
-	if (pages[1])
-		clear_fixmap(FIX_TEXT_POKE1);
-	local_flush_tlb();
-	sync_core();
-	/* Could also do a CLFLUSH here to speed up CPU recovery; but
-	   that causes hangs on some VIA CPUs. */
-	for (i = 0; i < len; i++)
-		BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]);
-	local_irq_restore(flags);
-	return addr;
-}
-
-/*
- * Cross-modifying kernel text with stop_machine().
- * This code originally comes from immediate value.
- */
-static atomic_t stop_machine_first;
-static int wrote_text;
-
-struct text_poke_params {
-	struct text_poke_param *params;
-	int nparams;
-};
-
-static int __kprobes stop_machine_text_poke(void *data)
-{
-	struct text_poke_params *tpp = data;
-	struct text_poke_param *p;
-	int i;
-
-	if (atomic_dec_and_test(&stop_machine_first)) {
-		for (i = 0; i < tpp->nparams; i++) {
-			p = &tpp->params[i];
-			text_poke(p->addr, p->opcode, p->len);
-		}
-		smp_wmb();	/* Make sure other cpus see that this has run */
-		wrote_text = 1;
-	} else {
-		while (!wrote_text)
-			cpu_relax();
-		smp_mb();	/* Load wrote_text before following execution */
-	}
-
-	for (i = 0; i < tpp->nparams; i++) {
-		p = &tpp->params[i];
-		flush_icache_range((unsigned long)p->addr,
-				   (unsigned long)p->addr + p->len);
-	}
-	/*
-	 * Intel Archiecture Software Developer's Manual section 7.1.3 specifies
-	 * that a core serializing instruction such as "cpuid" should be
-	 * executed on _each_ core before the new instruction is made visible.
-	 */
-	sync_core();
-	return 0;
-}
-
-/**
- * text_poke_smp - Update instructions on a live kernel on SMP
- * @addr: address to modify
- * @opcode: source of the copy
- * @len: length to copy
- *
- * Modify multi-byte instruction by using stop_machine() on SMP. This allows
- * user to poke/set multi-byte text on SMP. Only non-NMI/MCE code modifying
- * should be allowed, since stop_machine() does _not_ protect code against
- * NMI and MCE.
- *
- * Note: Must be called under get_online_cpus() and text_mutex.
- */
-void *__kprobes text_poke_smp(void *addr, const void *opcode, size_t len)
-{
-	struct text_poke_params tpp;
-	struct text_poke_param p;
-
-	p.addr = addr;
-	p.opcode = opcode;
-	p.len = len;
-	tpp.params = &p;
-	tpp.nparams = 1;
-	atomic_set(&stop_machine_first, 1);
-	wrote_text = 0;
-	/* Use __stop_machine() because the caller already got online_cpus. */
-	__stop_machine(stop_machine_text_poke, (void *)&tpp, cpu_online_mask);
-	return addr;
-}
-
-/**
- * text_poke_smp_batch - Update instructions on a live kernel on SMP
- * @params: an array of text_poke parameters
- * @n: the number of elements in params.
- *
- * Modify multi-byte instruction by using stop_machine() on SMP. Since the
- * stop_machine() is heavy task, it is better to aggregate text_poke requests
- * and do it once if possible.
- *
- * Note: Must be called under get_online_cpus() and text_mutex.
- */
-void __kprobes text_poke_smp_batch(struct text_poke_param *params, int n)
-{
-	struct text_poke_params tpp = {.params = params, .nparams = n};
-
-	atomic_set(&stop_machine_first, 1);
-	wrote_text = 0;
-	__stop_machine(stop_machine_text_poke, (void *)&tpp, cpu_online_mask);
-}