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>
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@@ -555,7 +555,6 @@ unsigned long sys_sigreturn(struct pt_regs *regs)
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sizeof(frame->extramask))))
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goto badframe;
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sigdelsetmask(&set, ~_BLOCKABLE);
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set_current_blocked(&set);
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if (restore_sigcontext(regs, &frame->sc, &ax))
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@@ -581,7 +580,6 @@ long sys_rt_sigreturn(struct pt_regs *regs)
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if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
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goto badframe;
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sigdelsetmask(&set, ~_BLOCKABLE);
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set_current_blocked(&set);
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if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
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@@ -915,7 +913,6 @@ asmlinkage long sys32_x32_rt_sigreturn(struct pt_regs *regs)
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if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
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goto badframe;
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sigdelsetmask(&set, ~_BLOCKABLE);
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set_current_blocked(&set);
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if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
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