Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755860Ab1DVOOX (ORCPT ); Fri, 22 Apr 2011 10:14:23 -0400 Received: from arkanian.console-pimps.org ([212.110.184.194]:56789 "EHLO arkanian.console-pimps.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755764Ab1DVOOU (ORCPT ); Fri, 22 Apr 2011 10:14:20 -0400 Date: Fri, 22 Apr 2011 15:14:18 +0100 From: Matt Fleming To: Oleg Nesterov Cc: Tejun Heo , Linus Torvalds , Andrew Morton , "Nikita V. Youshchenko" , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 7/7] x86: signal: sys_rt_sigreturn() should use set_current_blocked() Message-ID: <20110422151418.3639a131@mfleming-mobl1.ger.corp.intel.com> In-Reply-To: <20110418134641.GH15951@redhat.com> References: <20110418134421.GA15951@redhat.com> <20110418134641.GH15951@redhat.com> X-Mailer: Claws Mail 3.7.8cvs52 (GTK+ 2.22.0; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 756 Lines: 19 On Mon, 18 Apr 2011 15:46:41 +0200 Oleg Nesterov wrote: > Normally sys_rt_sigreturn() restores the old current->blocked which was > changed by handle_signal(), and unblocking is always fine. > > But the debugger or application itself can change frame->uc_sigmask and > thus we need set_current_blocked()->retarget_shared_pending(). > > Signed-off-by: Oleg Nesterov Reviewed-by: Matt Fleming But does sys_sigreturn() also need this change? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/