linux-kernel - Re: [PATCH 5/8] signal: flatten do_send_sig

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Message-ID: <20180528141537.GA30522@ZenIV.linux.org.uk>
Date:   Mon, 28 May 2018 15:15:37 +0100
From:   Al Viro <viro@...IV.linux.org.uk>
To:     Christian Brauner <christian@...uner.io>
Cc:     linux-kernel@...r.kernel.org, ebiederm@...ssion.com,
        gregkh@...uxfoundation.org, mingo@...nel.org,
        james.morris@...rosoft.com, keescook@...omium.org,
        peterz@...radead.org, sds@...ho.nsa.gov, akpm@...ux-foundation.org,
        oleg@...hat.com
Subject: Re: [PATCH 5/8] signal: flatten do_send_sig_info()

On Mon, May 28, 2018 at 03:49:13PM +0200, Christian Brauner wrote:
> Let's return early when lock_task_sighand() fails and move send_signal()
> and unlock_task_sighand() out of the if block.

Why is it an improvement?