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Re: [Xen-devel] [PATCH 21/29] drivers, s390: convert fc_fcp_pkt.ref_cnt from atomic_t to refcount_t
- To: Elena Reshetova <elena.reshetova@xxxxxxxxx>, gregkh@xxxxxxxxxxxxxxxxxxx
- From: Johannes Thumshirn <jthumshirn@xxxxxxx>
- Date: Mon, 6 Mar 2017 16:27:11 +0100
- Cc: devel@xxxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, open-iscsi@xxxxxxxxxxxxxxxx, Kees Cook <keescook@xxxxxxxxxxxx>, linux-scsi@xxxxxxxxxxxxxxx, David Windsor <dwindsor@xxxxxxxxx>, peterz@xxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, linux-usb@xxxxxxxxxxxxxxx, linux-pci@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx, linux-bcache@xxxxxxxxxxxxxxx, target-devel@xxxxxxxxxxxxxxx, linux-serial@xxxxxxxxxxxxxxx, devel@xxxxxxxxxxxxxxxxxxxxxx, fcoe-devel@xxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux1394-devel@xxxxxxxxxxxxxxxxxxxxx, Hans Liljestrand <ishkamiel@xxxxxxxxx>, linux-media@xxxxxxxxxxxxxxx
- Delivery-date: Mon, 06 Mar 2017 15:29:12 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On 03/06/2017 03:21 PM, Elena Reshetova wrote:
> 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.
The subject is wrong, should be something like "scsi: libfc convert
fc_fcp_pkt.ref_cnt from atomic_t to refcount_t" but not s390.
Other than that
Acked-by: Johannes Thumshirn <jth@xxxxxxxxxx>
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Johannes Thumshirn Storage
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