[PARISC] Add is_compat_task() helper

... And convert signal.c and ptrace.c to use it instead of open
coded equivalents.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

2 files changed, 14 insertions, 14 deletions

diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 413292f1a4a3..3f28de974556 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -91,7 +91,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 int copied;
 
 #ifdef __LP64__
-                if (personality(child->personality) == PER_LINUX32) {
+                if (__is_compat_task(child)) {
                         unsigned int tmp;
 
                         addr &= 0xffffffffL;
@@ -123,7 +123,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
         case PTRACE_POKEDATA:
                 ret = 0;
 #ifdef __LP64__
-                if (personality(child->personality) == PER_LINUX32) {
+                if (__is_compat_task(child)) {
                         unsigned int tmp = (unsigned int)data;
                         DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
                                 request == PTRACE_POKETEXT ? "TEXT" : "DATA",
@@ -146,7 +146,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
         case PTRACE_PEEKUSR: {
                 ret = -EIO;
 #ifdef __LP64__
-                if (personality(child->personality) == PER_LINUX32) {
+                if (__is_compat_task(child)) {
                         unsigned int tmp;
 
                         if (addr & (sizeof(int)-1))
@@ -205,7 +205,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                         goto out_tsk;
                 }
 #ifdef __LP64__
-                if (personality(child->personality) == PER_LINUX32) {
+                if (__is_compat_task(child)) {
                         if (addr & (sizeof(int)-1))
                                 goto out_tsk;
                         if ((addr = translate_usr_offset(addr)) < 0)
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index cc38edfd90c5..bb83880c5ee3 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -76,7 +76,7 @@ sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize, struct pt_regs *r
 #ifdef __LP64__
         compat_sigset_t newset32;
 
-        if(personality(current->personality) == PER_LINUX32){
+        if (is_compat_task()) {
                 /* XXX: Don't preclude handling different sized sigset_t's.  */
                 if (sigsetsize != sizeof(compat_sigset_t))
                         return -EINVAL;
@@ -153,7 +153,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
         compat_sigset_t compat_set;
         struct compat_rt_sigframe __user * compat_frame;
         
-        if(personality(current->personality) == PER_LINUX32)
+        if (is_compat_task())
                 sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
 #endif
 
@@ -166,7 +166,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
 #ifdef __LP64__
         compat_frame = (struct compat_rt_sigframe __user *)frame;
         
-        if(personality(current->personality) == PER_LINUX32){
+        if (is_compat_task()) {
                 DBG(2,"sys_rt_sigreturn: ELF32 process.\n");
                 if (__copy_from_user(&compat_set, &compat_frame->uc.uc_sigmask, sizeof(compat_set)))
                         goto give_sigsegv;
@@ -186,7 +186,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
 
         /* Good thing we saved the old gr[30], eh? */
 #ifdef __LP64__
-        if(personality(current->personality) == PER_LINUX32){
+        if (is_compat_task()) {
                 DBG(1,"sys_rt_sigreturn: compat_frame->uc.uc_mcontext 0x%p\n",
                                 &compat_frame->uc.uc_mcontext);
 // FIXME: Load upper half from register file
@@ -315,7 +315,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 
         compat_frame = (struct compat_rt_sigframe __user *)frame;
         
-        if(personality(current->personality) == PER_LINUX32) {
+        if (is_compat_task()) {
                 DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &compat_frame->info);
                 err |= copy_siginfo_to_user32(&compat_frame->info, info);
                 DBG(1,"SETUP_RT_FRAME: 1\n");
@@ -392,7 +392,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         haddr = A(ka->sa.sa_handler);
         /* The sa_handler may be a pointer to a function descriptor */
 #ifdef __LP64__
-        if(personality(current->personality) == PER_LINUX32) {
+        if (is_compat_task()) {
 #endif
                 if (haddr & PA_PLABEL_FDESC) {
                         Elf32_Fdesc fdesc;
@@ -427,19 +427,19 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
          */
         sigframe_size = PARISC_RT_SIGFRAME_SIZE;
 #ifdef __LP64__
-        if(personality(current->personality) == PER_LINUX32)
+        if (is_compat_task())
                 sigframe_size = PARISC_RT_SIGFRAME_SIZE32;
 #endif
         if (in_syscall) {
                 regs->gr[31] = haddr;
 #ifdef __LP64__
-                if(personality(current->personality) == PER_LINUX)
+                if (personality(current->personality) == PER_LINUX)
                         sigframe_size |= 1;
 #endif
         } else {
                 unsigned long psw = USER_PSW;
 #ifdef __LP64__
-                if(personality(current->personality) == PER_LINUX)
+                if (personality(current->personality) == PER_LINUX)
                         psw |= PSW_W;
 #endif
 
@@ -464,7 +464,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         regs->gr[26] = sig;               /* signal number */
         
 #ifdef __LP64__
-        if(personality(current->personality) == PER_LINUX32){
+        if (is_compat_task()) {
                 regs->gr[25] = A(&compat_frame->info); /* siginfo pointer */
                 regs->gr[24] = A(&compat_frame->uc);   /* ucontext pointer */
         } else