Merge branch 'for-um' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal into for-3.5

3 files changed, 14 insertions, 12 deletions

diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 2b73dedb44ca..3a2235e0abc3 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -18,6 +18,7 @@
 #include <linux/seq_file.h>
 #include <linux/tick.h>
 #include <linux/threads.h>
+#include <linux/tracehook.h>
 #include <asm/current.h>
 #include <asm/pgtable.h>
 #include <asm/mmu_context.h>
@@ -114,8 +115,13 @@ void interrupt_end(void)
 {
         if (need_resched())
                 schedule();
-        if (test_tsk_thread_flag(current, TIF_SIGPENDING))
+        if (test_thread_flag(TIF_SIGPENDING))
                 do_signal();
+        if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME)) {
+                tracehook_notify_resume(&current->thread.regs);
+                if (current->replacement_session_keyring)
+                        key_replace_session_keyring();
+        }
 }
 
 void exit_thread(void)
@@ -190,7 +196,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
         if (current->thread.forking) {
                 memcpy(&p->thread.regs.regs, &regs->regs,
                        sizeof(p->thread.regs.regs));
-                REGS_SET_SYSCALL_RETURN(p->thread.regs.regs.gp, 0);
+                UPT_SET_SYSCALL_RETURN(&p->thread.regs.regs, 0);
                 if (sp != 0)
                         REGS_SP(p->thread.regs.regs.gp) = sp;
 
diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index fb12f4c5e649..187118fbe1bc 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -29,9 +29,6 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
         unsigned long sp;
         int err;
 
-        /* Always make any pending restarted system calls return -EINTR */
-        current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
         /* Did we come from a system call? */
         if (PT_REGS_SYSCALL_NR(regs) >= 0) {
                 /* If so, check system call restarting.. */
@@ -77,15 +74,14 @@ static int kern_do_signal(struct pt_regs *regs)
 {
         struct k_sigaction ka_copy;
         siginfo_t info;
-        sigset_t *oldset;
         int sig, handled_sig = 0;
 
-        if (test_thread_flag(TIF_RESTORE_SIGMASK))
-                oldset = &current->saved_sigmask;
-        else
-                oldset = &current->blocked;
-
         while ((sig = get_signal_to_deliver(&info, &ka_copy, regs, NULL)) > 0) {
+                sigset_t *oldset;
+                if (test_thread_flag(TIF_RESTORE_SIGMASK))
+                        oldset = &current->saved_sigmask;
+                else
+                        oldset = &current->blocked;
                 handled_sig = 1;
                 /* Whee!  Actually deliver the signal.  */
                 if (!handle_signal(regs, sig, &ka_copy, &info, oldset)) {
diff --git a/arch/um/kernel/skas/syscall.c b/arch/um/kernel/skas/syscall.c
index f5173e1ec3ac..05fbeb480e0b 100644
--- a/arch/um/kernel/skas/syscall.c
+++ b/arch/um/kernel/skas/syscall.c
@@ -34,7 +34,7 @@ void handle_syscall(struct uml_pt_regs *r)
                 result = -ENOSYS;
         else result = EXECUTE_SYSCALL(syscall, regs);
 
-        REGS_SET_SYSCALL_RETURN(r->gp, result);
+        UPT_SET_SYSCALL_RETURN(r, result);
 
         syscall_trace(r, 1);
 }