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authorAl Viro <viro@zeniv.linux.org.uk>2012-04-27 13:58:59 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-06-01 12:58:51 -0400
commit77097ae503b170120ab66dd1d547f8577193f91f (patch)
treebee5b2e8d91b9ec8ab74c58cbec1796c7bacc2e5 /arch/x86
parentedd63a2763bdae0daa4f0a4d4c5d61d1154352a5 (diff)
downloadop-kernel-dev-77097ae503b170120ab66dd1d547f8577193f91f.zip
op-kernel-dev-77097ae503b170120ab66dd1d547f8577193f91f.tar.gz
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>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/ia32/ia32_signal.c2
-rw-r--r--arch/x86/include/asm/sighandling.h2
-rw-r--r--arch/x86/kernel/signal.c3
-rw-r--r--arch/x86/um/signal.c2
4 files changed, 0 insertions, 9 deletions
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 98bd70f..daeca56 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -273,7 +273,6 @@ asmlinkage long sys32_sigreturn(struct pt_regs *regs)
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (ia32_restore_sigcontext(regs, &frame->sc, &ax))
@@ -299,7 +298,6 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
index ada93b3..beff97f 100644
--- a/arch/x86/include/asm/sighandling.h
+++ b/arch/x86/include/asm/sighandling.h
@@ -7,8 +7,6 @@
#include <asm/processor-flags.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
#define __FIX_EFLAGS (X86_EFLAGS_AC | X86_EFLAGS_OF | \
X86_EFLAGS_DF | X86_EFLAGS_TF | X86_EFLAGS_SF | \
X86_EFLAGS_ZF | X86_EFLAGS_AF | X86_EFLAGS_PF | \
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 700c49d..11e206f 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -555,7 +555,6 @@ unsigned long sys_sigreturn(struct pt_regs *regs)
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->sc, &ax))
@@ -581,7 +580,6 @@ long sys_rt_sigreturn(struct pt_regs *regs)
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
@@ -915,7 +913,6 @@ asmlinkage long sys32_x32_rt_sigreturn(struct pt_regs *regs)
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c
index bb0fb03..a508cea1 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))
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