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iommufd/iova_bitmap: Move initial pinning to iova_bitmap_for_each()

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The pinned pages are only relevant when it starts iterating the bitmap so
defer that into iova_bitmap_for_each().

Link: https://lore.kernel.org/r/20240627110105.62325-9-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>
This commit is contained in:
Joao Martins 2024-06-27 12:01:02 +01:00 committed by Jason Gunthorpe
parent a84c690e10
commit 781bc08797
1 changed files with 4 additions and 3 deletions
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7
drivers/iommu/iommufd/iova_bitmap.c
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@ -269,9 +269,6 @@ struct iova_bitmap *iova_bitmap_alloc(unsigned long iova, size_t length,
goto err;
}
rc = iova_bitmap_get(bitmap);
if (rc)
goto err;
return bitmap;
err:
@ -425,6 +422,10 @@ int iova_bitmap_for_each(struct iova_bitmap *bitmap, void *opaque,
{
int ret = 0;
ret = iova_bitmap_get(bitmap);
if (ret)
return ret;
for (; !iova_bitmap_done(bitmap) && !ret;
ret = iova_bitmap_advance(bitmap)) {
ret = fn(bitmap, iova_bitmap_mapped_iova(bitmap),