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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: "Reshetova, Elena" <elena.reshetova@xxxxxxxxx>, "gregkh@xxxxxxxxxxxxxxxxxxx" <gregkh@xxxxxxxxxxxxxxxxxxx>
- From: Johannes Thumshirn <jthumshirn@xxxxxxx>
- Date: Wed, 8 Mar 2017 15:06:53 +0100
- Cc: "devel@xxxxxxxxxxxxxxxxxxxx" <devel@xxxxxxxxxxxxxxxxxxxx>, "linux-s390@xxxxxxxxxxxxxxx" <linux-s390@xxxxxxxxxxxxxxx>, "open-iscsi@xxxxxxxxxxxxxxxx" <open-iscsi@xxxxxxxxxxxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, "linux-scsi@xxxxxxxxxxxxxxx" <linux-scsi@xxxxxxxxxxxxxxx>, David Windsor <dwindsor@xxxxxxxxx>, "peterz@xxxxxxxxxxxxx" <peterz@xxxxxxxxxxxxx>, "netdev@xxxxxxxxxxxxxxx" <netdev@xxxxxxxxxxxxxxx>, "linux-usb@xxxxxxxxxxxxxxx" <linux-usb@xxxxxxxxxxxxxxx>, "linux-pci@xxxxxxxxxxxxxxx" <linux-pci@xxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "linux-raid@xxxxxxxxxxxxxxx" <linux-raid@xxxxxxxxxxxxxxx>, "linux-bcache@xxxxxxxxxxxxxxx" <linux-bcache@xxxxxxxxxxxxxxx>, "target-devel@xxxxxxxxxxxxxxx" <target-devel@xxxxxxxxxxxxxxx>, "linux-serial@xxxxxxxxxxxxxxx" <linux-serial@xxxxxxxxxxxxxxx>, "devel@xxxxxxxxxxxxxxxxxxxxxx" <devel@xxxxxxxxxxxxxxxxxxxxxx>, "fcoe-devel@xxxxxxxxxxxxx" <fcoe-devel@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "linux1394-devel@xxxxxxxxxxxxxxxxxxxxx" <linux1394-devel@xxxxxxxxxxxxxxxxxxxxx>, Hans Liljestrand <ishkamiel@xxxxxxxxx>, "linux-media@xxxxxxxxxxxxxxx" <linux-media@xxxxxxxxxxxxxxx>
- Delivery-date: Wed, 08 Mar 2017 14:07:00 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On 03/08/2017 02:48 PM, Reshetova, Elena wrote:
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>
Turns out that it is better that all these patches go through the respective
maintainer trees, if present.
If I send an updated patch (with subject fixed), could you merge it through
your tree?
Yes, but this would be the normal scsi tree from Martin and James.
Please include my Ack in the re-sends.
Thanks a lot,
Johannes
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Johannes Thumshirn Storage
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