new helper: sigsuspend()

guts of saved_sigmask-based sigsuspend/rt_sigsuspend.  Takes
kernel sigset_t *.

Open-coded instances replaced with calling it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-05-21 21:42:32 -04:00
parent bf67f3a5c4
commit 68f3f16d9a
21 changed files with 50 additions and 223 deletions

View File

@@ -288,15 +288,7 @@ asmlinkage int sys32_sigsuspend(nabi_no_regargs struct pt_regs regs)
uset = (compat_sigset_t __user *) regs.regs[4];
if (get_sigset(&newset, uset))
return -EFAULT;
sigdelsetmask(&newset, ~_BLOCKABLE);
current->saved_sigmask = current->blocked;
set_current_blocked(&newset);
current->state = TASK_INTERRUPTIBLE;
schedule();
set_thread_flag(TIF_RESTORE_SIGMASK);
return -ERESTARTNOHAND;
return sigsuspend(&newset);
}
asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
@@ -313,15 +305,7 @@ asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
uset = (compat_sigset_t __user *) regs.regs[4];
if (get_sigset(&newset, uset))
return -EFAULT;
sigdelsetmask(&newset, ~_BLOCKABLE);
current->saved_sigmask = current->blocked;
set_current_blocked(&newset);
current->state = TASK_INTERRUPTIBLE;
schedule();
set_thread_flag(TIF_RESTORE_SIGMASK);
return -ERESTARTNOHAND;
return sigsuspend(&newset);
}
SYSCALL_DEFINE3(32_sigaction, long, sig, const struct sigaction32 __user *, act,