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Date: Mon, 20 Sep 2010 15:13:04 +0100 From: David Howells <dhowells@...hat.com> To: torvalds@...l.org, akpm@...ux-foundation.org Cc: linux-kernel@...r.kernel.org, Al Viro <viro@...iv.linux.org.uk>, David Howells <dhowells@...hat.com> Subject: [PATCH 1/5] frv: restart_block.fn needs to be reset on sigreturn From: Al Viro <viro@....linux.org.uk> Reset restart_block.fn on executing a sigreturn such that any currently pending system call restarts will be forced to return -EINTR. Signed-off-by: Al Viro <viro@...iv.linux.org.uk> Signed-off-by: David Howells <dhowells@...hat.com> --- arch/frv/kernel/signal.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c index 0974c0e..7fc2961 100644 --- a/arch/frv/kernel/signal.c +++ b/arch/frv/kernel/signal.c @@ -121,6 +121,9 @@ static int restore_sigcontext(struct sigcontext __user *sc, int *_gr8) struct user_context *user = current->thread.user; unsigned long tbr, psr; + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + tbr = user->i.tbr; psr = user->i.psr; if (copy_from_user(user, &sc->sc_context, sizeof(sc->sc_context))) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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