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authorAl Viro <viro@zeniv.linux.org.uk>2010-09-18 08:38:47 -0400
committerMatt Turner <mattst88@gmail.com>2010-09-18 23:08:27 -0400
commit2deba1bd7126aadb5750beb927c878a6490065e6 (patch)
treebd044c0442c2684a5f2713857cc097ef97710bc7
parentbdc8b8914b17cf97b53e5f7af8168d68cfb089d6 (diff)
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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 <mcree@orcon.net.nz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Matt Turner <mattst88@gmail.com>
-rw-r--r--arch/alpha/kernel/signal.c3
1 files changed, 2 insertions, 1 deletions
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;
}