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| author | Will Deacon <[email protected]> | 2024-03-08 15:28:29 +0000 |
|---|---|---|
| committer | Christoph Hellwig <[email protected]> | 2024-03-13 18:39:34 +0000 |
| commit | 14cebf689a78e8a1c041138af221ef6eac6bc7da (patch) | |
| tree | a556053871a62a03b875d023c52449470416b361 /scripts/bpf_doc.py | |
| parent | iommu/dma: Force swiotlb_max_mapping_size on an untrusted device (diff) | |
| download | kernel-14cebf689a78e8a1c041138af221ef6eac6bc7da.tar.gz kernel-14cebf689a78e8a1c041138af221ef6eac6bc7da.zip | |
swiotlb: Reinstate page-alignment for mappings >= PAGE_SIZE
For swiotlb allocations >= PAGE_SIZE, the slab search historically
adjusted the stride to avoid checking unaligned slots. This had the
side-effect of aligning large mapping requests to PAGE_SIZE, but that
was broken by 0eee5ae10256 ("swiotlb: fix slot alignment checks").
Since this alignment could be relied upon drivers, reinstate PAGE_SIZE
alignment for swiotlb mappings >= PAGE_SIZE.
Reported-by: Michael Kelley <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
Reviewed-by: Petr Tesarik <[email protected]>
Tested-by: Nicolin Chen <[email protected]>
Tested-by: Michael Kelley <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Diffstat (limited to 'scripts/bpf_doc.py')
0 files changed, 0 insertions, 0 deletions