linux-kernel - Re: [PATCH 13/20] arm: Do not call try_to_freeze() in do

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Message-ID: <20120525234345.GA32000@n2100.arm.linux.org.uk>
Date:	Sat, 26 May 2012 00:43:45 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Richard Weinberger <richard@....at>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 13/20] arm: Do not call try_to_freeze() in do_signal()

On Sat, May 26, 2012 at 12:04:29AM +0200, Richard Weinberger wrote:
> get_signal_to_deliver() already calls try_to_freeze(), there is no
> need to call it directly.

NAK.  Please check linux-next (okay, viro's patches haven't appeared
there yet) but a lot of this stuff is covered by a truckload of work
that Al's done.

Please don't work across Al.

commit d9be5ea6f9b6a51535ccdd9881ffb3be2dbd48e9
Author: Al Viro <viro@...iv.linux.org.uk>
Date:   Fri Apr 27 01:18:52 2012 -0400

    arm: don't call try_to_freeze() from do_signal()
    
    get_signal_to_deliver() will handle it itself
    
    Signed-off-by: Al Viro <viro@...iv.linux.org.uk>

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index a6c4e78..3b37c14 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -642,9 +642,6 @@ static void do_signal(struct pt_regs *regs, int syscall)
                }
        }
 
-       if (try_to_freeze())
-               goto no_signal;
-
        /*
         * Get the signal to deliver.  When running under ptrace, at this
         * point the debugger may change all our registers ...
@@ -684,7 +681,6 @@ static void do_signal(struct pt_regs *regs, int syscall)
                return;
        }
 
- no_signal:
        if (syscall) {
                /*
                 * Handle restarting a different system call.  As above,

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