From: Al Viro Date: Sat, 18 Sep 2010 12:38:47 +0000 (-0400) Subject: alpha: belated ERESTART_RESTARTBLOCK race fix X-Git-Tag: v2.6.36-rc5~10^2~3 X-Git-Url: https://bbs.cooldavid.org/git/?a=commitdiff_plain;ds=sidebyside;h=2deba1bd7126aadb5750beb927c878a6490065e6;p=net-next-2.6.git alpha: belated ERESTART_RESTARTBLOCK race fix same thing as had been done on other targets back in 2003 - move setting ->restart_block.fn into {rt_,}sigreturn(). Tested-by: Michael Cree Signed-off-by: Al Viro Signed-off-by: Matt Turner --- diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c index 0932dbb1ef8..e5b1b3c79ff 100644 --- a/arch/alpha/kernel/signal.c +++ b/arch/alpha/kernel/signal.c @@ -239,6 +239,8 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned long usp; long i, err = __get_user(regs->pc, &sc->sc_pc); + current_thread_info()->restart_block.fn = do_no_restart_syscall; + sw->r26 = (unsigned long) ret_from_sys_call; err |= __get_user(regs->r0, sc->sc_regs+0); @@ -591,7 +593,6 @@ syscall_restart(unsigned long r0, unsigned long r19, regs->pc -= 4; break; case ERESTART_RESTARTBLOCK: - current_thread_info()->restart_block.fn = do_no_restart_syscall; regs->r0 = EINTR; break; }