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authorAl Viro <viro@zeniv.linux.org.uk>2012-10-22 22:51:14 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-11-28 23:43:42 -0500
commitafa86fc426ff7e7f5477f15da9c405d08d5cf790 (patch)
tree0f82925269757902ce6f7c287a968f7b439d2b2d /arch
parent135c37b83c81b79a888108e3f7c5f64423d8a851 (diff)
downloadvexpress-lsk-afa86fc426ff7e7f5477f15da9c405d08d5cf790.tar.gz
flagday: don't pass regs to copy_thread()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/kernel/process.c2
-rw-r--r--arch/arm/kernel/process.c2
-rw-r--r--arch/arm64/kernel/process.c3
-rw-r--r--arch/avr32/kernel/process.c2
-rw-r--r--arch/blackfin/kernel/process.c6
-rw-r--r--arch/c6x/kernel/process.c2
-rw-r--r--arch/cris/arch-v10/kernel/process.c3
-rw-r--r--arch/cris/arch-v32/kernel/process.c3
-rw-r--r--arch/frv/kernel/process.c2
-rw-r--r--arch/h8300/kernel/process.c2
-rw-r--r--arch/hexagon/kernel/process.c3
-rw-r--r--arch/ia64/kernel/process.c3
-rw-r--r--arch/m32r/kernel/process.c2
-rw-r--r--arch/m68k/kernel/process.c3
-rw-r--r--arch/microblaze/kernel/process.c3
-rw-r--r--arch/mips/kernel/process.c4
-rw-r--r--arch/mn10300/kernel/process.c2
-rw-r--r--arch/openrisc/kernel/process.c2
-rw-r--r--arch/parisc/kernel/process.c5
-rw-r--r--arch/powerpc/kernel/process.c4
-rw-r--r--arch/s390/kernel/process.c3
-rw-r--r--arch/score/kernel/process.c4
-rw-r--r--arch/sh/kernel/process_32.c3
-rw-r--r--arch/sh/kernel/process_64.c5
-rw-r--r--arch/sparc/kernel/process_32.c5
-rw-r--r--arch/sparc/kernel/process_64.c4
-rw-r--r--arch/tile/kernel/process.c5
-rw-r--r--arch/um/kernel/process.c3
-rw-r--r--arch/unicore32/kernel/process.c2
-rw-r--r--arch/x86/kernel/process_32.c3
-rw-r--r--arch/x86/kernel/process_64.c3
-rw-r--r--arch/xtensa/kernel/process.c3
32 files changed, 43 insertions, 58 deletions
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index e9705bcc96f..b5d0d092369 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -241,7 +241,7 @@ release_thread(struct task_struct *dead_task)
int
copy_thread(unsigned long clone_flags, unsigned long usp,
unsigned long arg,
- struct task_struct *p, struct pt_regs *wontuse)
+ struct task_struct *p)
{
extern void ret_from_fork(void);
extern void ret_from_kernel_thread(void);
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 4ab80bbb6d9..9800338c5d1 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -376,7 +376,7 @@ asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
int
copy_thread(unsigned long clone_flags, unsigned long stack_start,
- unsigned long stk_sz, struct task_struct *p, struct pt_regs *unused)
+ unsigned long stk_sz, struct task_struct *p)
{
struct thread_info *thread = task_thread_info(p);
struct pt_regs *childregs = task_pt_regs(p);
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 5a1335caf6f..cb0956bc96e 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -234,8 +234,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
asmlinkage void ret_from_fork(void) asm("ret_from_fork");
int copy_thread(unsigned long clone_flags, unsigned long stack_start,
- unsigned long stk_sz, struct task_struct *p,
- struct pt_regs *unused)
+ unsigned long stk_sz, struct task_struct *p)
{
struct pt_regs *childregs = task_pt_regs(p);
unsigned long tls = p->thread.tp_value;
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 03d7aa4a4bc..fd78f58ea79 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -299,7 +299,7 @@ asmlinkage void syscall_return(void);
int copy_thread(unsigned long clone_flags, unsigned long usp,
unsigned long arg,
- struct task_struct *p, struct pt_regs *unused)
+ struct task_struct *p)
{
struct pt_regs *childregs = task_pt_regs(p);
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index e5ae8fcab43..582276efaaa 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -141,14 +141,14 @@ asmlinkage int bfin_clone(unsigned long clone_flags, unsigned long newsp)
int
copy_thread(unsigned long clone_flags,
unsigned long usp, unsigned long topstk,
- struct task_struct *p, struct pt_regs *regs)
+ struct task_struct *p)
{
struct pt_regs *childregs;
unsigned long *v;
childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1;
v = ((unsigned long *)childregs) - 2;
- if (unlikely(!regs)) {
+ if (unlikely(p->flags & PF_KTHREAD)) {
memset(childregs, 0, sizeof(struct pt_regs));
v[0] = usp;
v[1] = topstk;
@@ -157,7 +157,7 @@ copy_thread(unsigned long clone_flags,
__asm__ __volatile__("%0 = syscfg;":"=da"(childregs->syscfg):);
p->thread.usp = 0;
} else {
- *childregs = *regs;
+ *childregs = *current_pt_regs();
childregs->r0 = 0;
p->thread.usp = usp ? : rdusp();
v[0] = v[1] = 0;
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index a3f91895e8b..6434df476f7 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -139,7 +139,7 @@ void start_thread(struct pt_regs *regs, unsigned int pc, unsigned long usp)
*/
int copy_thread(unsigned long clone_flags, unsigned long usp,
unsigned long ustk_size,
- struct task_struct *p, struct pt_regs *unused)
+ struct task_struct *p)
{
struct pt_regs *childregs;
diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
index 520547c8b19..b1018750cff 100644
--- a/arch/cris/arch-v10/kernel/process.c
+++ b/arch/cris/arch-v10/kernel/process.c
@@ -94,8 +94,7 @@ asmlinkage void ret_from_fork(void);
asmlinkage void ret_from_kernel_thread(void);
int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *unused)
+ unsigned long arg, struct task_struct *p)
{
struct pt_regs *childregs = task_pt_regs(p);
struct switch_stack *swstack = ((struct switch_stack *)childregs) - 1;
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index 331e70252df..2b23ef0e445 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -109,8 +109,7 @@ extern asmlinkage void ret_from_kernel_thread(void);
int
copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *unused)
+ unsigned long arg, struct task_struct *p)
{
struct pt_regs *childregs = task_pt_regs(p);
struct switch_stack *swstack = ((struct switch_stack *) childregs) - 1;
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 0039bf77b19..23916b2a12a 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -144,7 +144,7 @@ inline unsigned long user_stack(const struct pt_regs *regs)
*/
int copy_thread(unsigned long clone_flags,
unsigned long usp, unsigned long arg,
- struct task_struct *p, struct pt_regs *unused)
+ struct task_struct *p)
{
struct pt_regs *childregs;
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index b0fb4054aee..b609f63f159 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -129,7 +129,7 @@ void flush_thread(void)
int copy_thread(unsigned long clone_flags,
unsigned long usp, unsigned long topstk,
- struct task_struct * p, struct pt_regs *unused)
+ struct task_struct * p)
{
struct pt_regs * childregs;
diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index 36dce17ed25..06ae9ffcabd 100644
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -87,8 +87,7 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
* Copy architecture-specific thread state
*/
int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg, struct task_struct *p,
- struct pt_regs *unused)
+ unsigned long arg, struct task_struct *p)
{
struct thread_info *ti = task_thread_info(p);
struct hexagon_switch_stack *ss;
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 25543a295ad..31360cbbd5f 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -393,12 +393,13 @@ ia64_load_extra (struct task_struct *task)
int
copy_thread(unsigned long clone_flags,
unsigned long user_stack_base, unsigned long user_stack_size,
- struct task_struct *p, struct pt_regs *regs)
+ struct task_struct *p)
{
extern char ia64_ret_from_clone;
struct switch_stack *child_stack, *stack;
unsigned long rbs, child_rbs, rbs_size;
struct pt_regs *child_ptregs;
+ struct pt_regs *regs = current_pt_regs();
int retval = 0;
child_ptregs = (struct pt_regs *) ((unsigned long) p + IA64_STK_OFFSET) - 1;
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index c37e9a9a8f2..765d0f57c78 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -192,7 +192,7 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
}
int copy_thread(unsigned long clone_flags, unsigned long spu,
- unsigned long arg, struct task_struct *tsk, struct pt_regs *unused)
+ unsigned long arg, struct task_struct *tsk)
{
struct pt_regs *childregs = task_pt_regs(tsk);
extern void ret_from_fork(void);
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index aa9b1100027..9a3df4df73c 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -154,8 +154,7 @@ asmlinkage int m68k_clone(struct pt_regs *regs)
}
int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg,
- struct task_struct * p, struct pt_regs * unused)
+ unsigned long arg, struct task_struct *p)
{
struct fork_frame {
struct switch_stack sw;
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index a5fed8db726..40823fd1db0 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -120,8 +120,7 @@ void flush_thread(void)
}
int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *unused)
+ unsigned long arg, struct task_struct *p)
{
struct pt_regs *childregs = task_pt_regs(p);
struct thread_info *ti = task_thread_info(p);
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index d13720ac656..38097652d62 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -114,10 +114,10 @@ void flush_thread(void)
}
int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg, struct task_struct *p, struct pt_regs *regs)
+ unsigned long arg, struct task_struct *p)
{
struct thread_info *ti = task_thread_info(p);
- struct pt_regs *childregs;
+ struct pt_regs *childregs, *regs = current_pt_regs();
unsigned long childksp;
p->set_child_tid = p->clear_child_tid = NULL;
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 5e0ef396458..eb09f5a552f 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -206,7 +206,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
*/
int copy_thread(unsigned long clone_flags,
unsigned long c_usp, unsigned long ustk_size,
- struct task_struct *p, struct pt_regs *unused)
+ struct task_struct *p)
{
struct thread_info *ti = task_thread_info(p);
struct pt_regs *c_regs;
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 6b853668369..00c233bf0d0 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -142,7 +142,7 @@ extern asmlinkage void ret_from_fork(void);
int
copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg, struct task_struct *p, struct pt_regs *regs)
+ unsigned long arg, struct task_struct *p)
{
struct pt_regs *userregs;
struct pt_regs *kregs;
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 9753ecf49a0..d13507246c5 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -204,10 +204,9 @@ int dump_task_fpu (struct task_struct *tsk, elf_fpregset_t *r)
int
copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *unused)
+ unsigned long arg, struct task_struct *p)
{
- struct pt_regs * cregs = &(p->thread.regs);
+ struct pt_regs *cregs = &(p->thread.regs);
void *stack = task_stack_page(p);
/* We have to use void * instead of a function pointer, because
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index a3143756763..81430674e71 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -733,8 +733,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
extern unsigned long dscr_default; /* defined in arch/powerpc/kernel/sysfs.c */
int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg, struct task_struct *p,
- struct pt_regs *regs)
+ unsigned long arg, struct task_struct *p)
{
struct pt_regs *childregs, *kregs;
extern void ret_from_fork(void);
@@ -759,6 +758,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
ti->flags |= _TIF_RESTOREALL;
f = ret_from_kernel_thread;
} else {
+ struct pt_regs *regs = current_pt_regs();
CHECK_FULL_REGS(regs);
*childregs = *regs;
if (usp)
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index e37677796a0..536d64579d9 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -117,8 +117,7 @@ void release_thread(struct task_struct *dead_task)
}
int copy_thread(unsigned long clone_flags, unsigned long new_stackp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *unused)
+ unsigned long arg, struct task_struct *p)
{
struct thread_info *ti;
struct fake_frame
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index f96379a5aee..79568466b57 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -87,11 +87,11 @@ void flush_thread(void) {}
* set up the kernel stack and exception frames for a new process
*/
int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *regs)
+ unsigned long arg, struct task_struct *p)
{
struct thread_info *ti = task_thread_info(p);
struct pt_regs *childregs = task_pt_regs(p);
+ struct pt_regs *regs = current_pt_regs();
p->thread.reg0 = (unsigned long) childregs;
if (unlikely(p->flags & PF_KTHREAD)) {
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 1786d16b6c6..73eb66fc625 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -128,8 +128,7 @@ asmlinkage void ret_from_fork(void);
asmlinkage void ret_from_kernel_thread(void);
int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *unused)
+ unsigned long arg, struct task_struct *p)
{
struct thread_info *ti = task_thread_info(p);
struct pt_regs *childregs;
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index d5c86a8a384..e611c85144b 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -371,10 +371,9 @@ asmlinkage void ret_from_fork(void);
asmlinkage void ret_from_kernel_thread(void);
int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *regs)
+ unsigned long arg, struct task_struct *p)
{
- struct pt_regs *childregs;
+ struct pt_regs *childregs, *regs = current_pt_regs();
#ifdef CONFIG_SH_FPU
/* can't happen for a kernel thread */
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index bf4c6addce7..ecde946ef83 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -319,11 +319,10 @@ extern void ret_from_fork(void);
extern void ret_from_kernel_thread(void);
int copy_thread(unsigned long clone_flags, unsigned long sp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *regs)
+ unsigned long arg, struct task_struct *p)
{
struct thread_info *ti = task_thread_info(p);
- struct pt_regs *childregs;
+ struct pt_regs *childregs, *regs = current_pt_regs();
char *new_stack;
#ifndef CONFIG_SMP
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index dff54f46728..58ef19e7e82 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -622,10 +622,10 @@ asmlinkage long sparc_do_fork(unsigned long clone_flags,
* Child --> %o0 == parents pid, %o1 == 1
*/
int copy_thread(unsigned long clone_flags, unsigned long sp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *regs)
+ unsigned long arg, struct task_struct *p)
{
struct thread_info *t = task_thread_info(p);
+ struct pt_regs *regs = current_pt_regs();
struct sparc_stackf *parent_sf;
unsigned long child_stack_sz;
char *child_trap_frame;
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 267936b51b5..0e5661e7d00 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -157,10 +157,9 @@ void arch_release_thread_info(struct thread_info *info)
static void save_arch_state(struct thread_struct *t);
int copy_thread(unsigned long clone_flags, unsigned long sp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *unused)
+ unsigned long arg, struct task_struct *p)
{
- struct pt_regs *childregs = task_pt_regs(p);
+ struct pt_regs *childregs = task_pt_regs(p), *regs = current_pt_regs();
unsigned long ksp;
unsigned long *callee_regs;
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index c502c804e8b..b462b13c5ba 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -161,8 +161,7 @@ void fork_handler(void)
}
int copy_thread(unsigned long clone_flags, unsigned long sp,
- unsigned long arg, struct task_struct * p,
- struct pt_regs *regs)
+ unsigned long arg, struct task_struct * p)
{
void (*handler)(void);
int kthread = current->flags & PF_KTHREAD;
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index 79e44e8ae31..62bad9fed03 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -262,7 +262,7 @@ asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread");
int
copy_thread(unsigned long clone_flags, unsigned long stack_start,
- unsigned long stk_sz, struct task_struct *p, struct pt_regs *unused)
+ unsigned long stk_sz, struct task_struct *p)
{
struct thread_info *thread = task_thread_info(p);
struct pt_regs *childregs = task_pt_regs(p);
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 16efa974532..b5a8905785e 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -128,8 +128,7 @@ void release_thread(struct task_struct *dead_task)
}
int copy_thread(unsigned long clone_flags, unsigned long sp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *unused)
+ unsigned long arg, struct task_struct *p)
{
struct pt_regs *childregs = task_pt_regs(p);
struct task_struct *tsk;
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 74aac76c6e3..6e68a619496 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -146,8 +146,7 @@ static inline u32 read_32bit_tls(struct task_struct *t, int tls)
}
int copy_thread(unsigned long clone_flags, unsigned long sp,
- unsigned long arg,
- struct task_struct *p, struct pt_regs *regs)
+ unsigned long arg, struct task_struct *p)
{
int err;
struct pt_regs *childregs;
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 0036c14739f..1accf28da5f 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -199,8 +199,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
*/
int copy_thread(unsigned long clone_flags, unsigned long usp_thread_fn,
- unsigned long thread_fn_arg,
- struct task_struct *p, struct pt_regs *unused)
+ unsigned long thread_fn_arg, struct task_struct *p)
{
struct pt_regs *childregs = task_pt_regs(p);