most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set

Only 3 out of 63 do not.  Renamed the current variant to __set_current_blocked(),
added set_current_blocked() that will exclude unblockable signals, switched
open-coded instances to it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

4 files changed, 0 insertions, 7 deletions

diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index 10263b405981..9c60d09e62a7 100644
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -19,8 +19,6 @@
 #  define DEBUGP(fmt, args...)
 #endif
 
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
 /*
  * Determine which stack to use..
  */
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 896165757e6f..02e0cba24f82 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -339,7 +339,6 @@ asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs)
         if (__copy_from_user(&blocked, &frame->sf_mask, sizeof(blocked)))
                 goto badframe;
 
-        sigdelsetmask(&blocked, ~_BLOCKABLE);
         set_current_blocked(&blocked);
 
         sig = restore_sigcontext(&regs, &frame->sf_sc);
@@ -375,7 +374,6 @@ asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
         if (__copy_from_user(&set, &frame->rs_uc.uc_sigmask, sizeof(set)))
                 goto badframe;
 
-        sigdelsetmask(&set, ~_BLOCKABLE);
         set_current_blocked(&set);
 
         sig = restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext);
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index b4fe2eacbd5d..da1b56a39ac7 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -465,7 +465,6 @@ asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs)
         if (__copy_conv_sigset_from_user(&blocked, &frame->sf_mask))
                 goto badframe;
 
-        sigdelsetmask(&blocked, ~_BLOCKABLE);
         set_current_blocked(&blocked);
 
         sig = restore_sigcontext32(&regs, &frame->sf_sc);
@@ -503,7 +502,6 @@ asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
         if (__copy_conv_sigset_from_user(&set, &frame->rs_uc.uc_sigmask))
                 goto badframe;
 
-        sigdelsetmask(&set, ~_BLOCKABLE);
         set_current_blocked(&set);
 
         sig = restore_sigcontext32(&regs, &frame->rs_uc.uc_mcontext);
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 63ffac9af7c5..3574c145511b 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -109,7 +109,6 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
         if (__copy_conv_sigset_from_user(&set, &frame->rs_uc.uc_sigmask))
                 goto badframe;
 
-        sigdelsetmask(&set, ~_BLOCKABLE);
         set_current_blocked(&set);
 
         sig = restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext);