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Commit ca33479c authored by Juergen Gross's avatar Juergen Gross
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xen: add helpers for caching grant mapping pages 


Instead of having similar helpers in multiple backend drivers use
common helpers for caching pages allocated via gnttab_alloc_pages().

Make use of those helpers in blkback and scsiback.

Cc: <stable@vger.kernel.org> # 5.9
Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
Reviewed-by: default avatarBoris Ostrovsky <boris.ostrovksy@oracle.com>
Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
parent a68a0262
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