On 01/21/2016 07:35 AM, Alexander Duyck wrote:
> This patch is meant to fix the RCU handling for VPD pages. The original
> code had a number of issues including the fact that the local variables
> were being declared as __rcu, the RCU variable being directly accessed
> outside of the RCU locked region, and the fact that length was not
> associated with the data so it would be possible to get a mix and match of
> the length for one VPD page with the data from another.
>
> Fixes: 09e2b0b14690 ("scsi: rescan VPD attributes")
> Signed-off-by: Alexander Duyck <aduyck@xxxxxxxxxxxx>
> ---
> drivers/scsi/scsi.c | 52 +++++++++++++++++++++++---------------------
> drivers/scsi/scsi_lib.c | 12 +++++-----
> drivers/scsi/scsi_sysfs.c | 14 +++++++-----
> include/scsi/scsi_device.h | 14 ++++++++----
> 4 files changed, 50 insertions(+), 42 deletions(-)
>
Thanks for fixing this up. I didn't really like the two distinct
variables for vpd buffer and length, too, but hadn't thought of
using a struct for here.
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare@xxxxxxx +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
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