linux-kernel - Re: [PATCH] drivers, scsi: convert fc_fcp_pkt.ref_cnt from atomic_t to refcount

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Message-ID: <yq18to6gmuw.fsf@oracle.com>
Date:   Wed, 15 Mar 2017 19:07:51 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Elena Reshetova <elena.reshetova@...el.com>
Cc:     jth@...nel.org, jejb@...ux.vnet.ibm.com,
        martin.petersen@...cle.com, linux-scsi@...r.kernel.org,
        fcoe-devel@...n-fcoe.org, linux-kernel@...r.kernel.org,
        Hans Liljestrand <ishkamiel@...il.com>,
        Kees Cook <keescook@...omium.org>,
        David Windsor <dwindsor@...il.com>
Subject: Re: [PATCH] drivers, scsi: convert fc_fcp_pkt.ref_cnt from atomic_t to refcount_t

Elena Reshetova <elena.reshetova@...el.com> writes:

> refcount_t type and corresponding API should be used instead of
> atomic_t when the variable is used as a reference counter. This allows
> to avoid accidental refcounter overflows that might lead to
> use-after-free situations.

Applied to 4.12/scsi-queue.

-- 
Martin K. Petersen	Oracle Linux Engineering