dma buffer sharing framework · Maintained

Maintainers

• M Sumit Semwal <sumit.semwal@linaro.org>
• M Christian König <christian.koenig@amd.com>

Paths

• F Documentation/driver-api/dma-buf.rst
• F Documentation/userspace-api/dma-buf-alloc-exchange.rst
• F drivers/dma-buf/
• F include/linux/*fence.h
• F include/linux/dma-buf.h
• F include/linux/dma-buf/
• F include/linux/dma-resv.h
• F rust/helpers/dma-resv.c

Last 30 days

Recent patches

Most-recent 23 patches in this subsystem on cgroups, ordered by date desc.

• COLD37d [PATCH RFC 3/5] security: dma-heap: Add dma_heap_alloc LSM hook
  2026-05-12 · Albert Esteve <hidden>
• COLD37d [PATCH RFC 2/5] dma-heap: charge dma-buf memory via explicit memcg
  2026-05-12 · Albert Esteve <hidden>
• COLD37d [PATCH RFC 1/5] memcg: Track exported dma-buffers
  2026-05-12 · Albert Esteve <hidden>
• STALE982d [PATCH 03/19] fs: release anon dev_t in deactivate_locked_super
  2023-09-13 · Christoph Hellwig <hch@lst.de>
• STALE1239d [PATCH v2 2/4] dmabuf: Add cgroup charge transfer function
  2023-01-23 · "T.J. Mercier" <tjmercier@google.com>
• STALE1239d [PATCH v2 1/4] memcg: Track exported dma-buffers
  2023-01-23 · "T.J. Mercier" <tjmercier@google.com>
• STALE1252d [PATCH 1/4] memcg: Track exported dma-buffers
  2023-01-09 · "T.J. Mercier" <tjmercier@google.com>
• STALE1252d [PATCH 3/4] binder: Add flags to relinquish ownership of fds
  2023-01-09 · "T.J. Mercier" <tjmercier@google.com>
• STALE1462d [PATCH v7 4/6] dmabuf: Add gpu cgroup charge transfer function
  2022-05-10 · "T.J. Mercier" <tjmercier@google.com>
• STALE1512d [PATCH v6 4/6] dmabuf: Add gpu cgroup charge transfer function
  2022-05-02 · "T.J. Mercier" <tjmercier@google.com>
• STALE1525d [RFC v5 4/6] dmabuf: Add gpu cgroup charge transfer function
  2022-04-20 · "T.J. Mercier" <tjmercier@google.com>
• STALE1542d [RFC v4 5/8] dmabuf: Add gpu cgroup charge transfer function
  2022-03-28 · "T.J. Mercier" <tjmercier@google.com>
• STALE1542d [RFC v4 4/8] dmabuf: heaps: export system_heap buffers with GPU cgroup charging
  2022-03-28 · "T.J. Mercier" <tjmercier@google.com>
• STALE1542d [RFC v4 3/8] dmabuf: Use the GPU cgroup charge/uncharge APIs
  2022-03-28 · "T.J. Mercier" <tjmercier@google.com>
• STALE1556d [RFC v3 3/8] dmabuf: Use the GPU cgroup charge/uncharge APIs
  2022-03-09 · "T.J. Mercier" <tjmercier@google.com>
• STALE1556d [RFC v3 4/8] dmabuf: heaps: export system_heap buffers with GPU cgroup charging
  2022-03-09 · "T.J. Mercier" <tjmercier@google.com>
• STALE1556d [RFC v3 5/8] dmabuf: Add gpu cgroup charge transfer function
  2022-03-09 · "T.J. Mercier" <tjmercier@google.com>
• STALE1588d [RFC v2 5/6] dmabuf: Add gpu cgroup charge transfer function
  2022-02-11 · "T.J. Mercier" <tjmercier@google.com>
• STALE1588d [RFC v2 4/6] dmabuf: heaps: export system_heap buffers with GPU cgroup charging
  2022-02-11 · "T.J. Mercier" <tjmercier@google.com>
• STALE1588d [RFC v2 3/6] dmabuf: Use the GPU cgroup charge/uncharge APIs
  2022-02-11 · "T.J. Mercier" <tjmercier@google.com>
• STALE1618d [RFC 5/6] dmabuf: system_heap: implement dma-buf op for GPU cgroup charge transfer
  2022-01-15 · Hridya Valsaraju <hidden>
• DORMANTno replies [RFC 4/6] dma-buf: Add DMA-BUF exporter op to charge a DMA-BUF to a cgroup.
  2022-01-15 · Hridya Valsaraju <hidden>
• DORMANTno replies [RFC 3/6] dmabuf: heaps: Use the GPU cgroup charge/uncharge APIs
  2022-01-15 · Hridya Valsaraju <hidden>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• COLD37d [PATCH RFC 1/5] memcg: Track exported dma-buffers
  2026-05-12 · Albert Esteve <hidden>
• COLD37d [PATCH RFC 3/5] security: dma-heap: Add dma_heap_alloc LSM hook
  2026-05-12 · Albert Esteve <hidden>