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>

1 files changed, 0 insertions, 2 deletions

diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c
index bb0fb03b9f85..a508cea13503 100644
--- a/arch/x86/um/signal.c
+++ b/arch/x86/um/signal.c
@@ -486,7 +486,6 @@ long sys_sigreturn(struct pt_regs *regs)
             copy_from_user(&set.sig[1], extramask, sig_size))
                 goto segfault;
 
-        sigdelsetmask(&set, ~_BLOCKABLE);
         set_current_blocked(&set);
 
         if (copy_sc_from_user(&current->thread.regs, sc))
@@ -600,7 +599,6 @@ long sys_rt_sigreturn(struct pt_regs *regs)
         if (copy_from_user(&set, &uc->uc_sigmask, sizeof(set)))
                 goto segfault;
 
-        sigdelsetmask(&set, ~_BLOCKABLE);
         set_current_blocked(&set);
 
         if (copy_sc_from_user(&current->thread.regs, &uc->uc_mcontext))