xen/gntdev: Do not use mm notifiers with autotranslating guests

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commit 9293724192 upstream.

Commit d3eeb1d77c ("xen/gntdev: use mmu_interval_notifier_insert")
missed a test for use_ptemod when calling mmu_interval_read_begin(). Fix
that.

Fixes: d3eeb1d77c ("xen/gntdev: use mmu_interval_notifier_insert")
CC: stable@vger.kernel.org # 5.5
Reported-by: Ilpo Järvinen <ilpo.jarvinen@cs.helsinki.fi>
Tested-by: Ilpo Järvinen <ilpo.jarvinen@cs.helsinki.fi>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Boris Ostrovsky 2020-01-28 10:31:26 -05:00 • committed by Greg Kroah-Hartman

parent 3ef39f135d

commit 56a376f501

1 changed files with 12 additions and 12 deletions

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drivers/xen/gntdev.c

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