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Date:   Mon, 21 Jan 2019 18:28:23 +0100
From:   Oleg Nesterov <oleg@redhat.com>
To:     Elena Reshetova <elena.reshetova@intel.com>
Cc:     mingo@redhat.com, peterz@infradead.org,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
        viro@zeniv.linux.org.uk, akpm@linux-foundation.org,
        keescook@chromium.org, tglx@linutronix.de
Subject: Re: [PATCH 2/5] sched: convert signal_struct.sigcnt to refcount_t
Message-ID: <20190121172822.GB8088@redhat.com>
References: <1547814450-18902-1-git-send-email-elena.reshetova@intel.com>
 <1547814450-18902-3-git-send-email-elena.reshetova@intel.com>
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On 01/18, Elena Reshetova wrote:
>
> For the signal_struct.sigcnt it might make a difference
> in following places:
>  - put_signal_struct(): decrement in refcount_dec_and_test() only
>    provides RELEASE ordering and control dependency on success
>    vs. fully ordered atomic counterpart

this is fine.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>