iommufd/iova_bitmap: Check iova_bitmap_done() after set ahead

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After iova_bitmap_set_ahead() returns it may be at the end of the range.
Move iova_bitmap_set_ahead() earlier to avoid unnecessary attempt in
trying to pin the next pages by reusing iova_bitmap_done() check.

Fixes: 2780025e01 ("iommufd/iova_bitmap: Handle recording beyond the mapped pages")
Link: https://lore.kernel.org/r/20240627110105.62325-7-joao.m.martins@oracle.com
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: Matt Ochs <mochs@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Joao Martins 2024-06-27 12:01:00 +01:00 • committed by Jason Gunthorpe

parent dceb5304d7

commit 792583656f

1 changed files with 3 additions and 2 deletions

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drivers/iommu/iommufd/iova_bitmap.c

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