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 30 patches in this subsystem on virtualization (capped at 30), ordered by date desc.

• COOLING11d [PATCH RFC POC 26/50] dma-buf: stop unwinding sync file descriptors by hand
  2026-09-15 · Christian Brauner <brauner@kernel.org>
• COLD20d [PATCH 1/3] drm: fix typos in comments
  2026-09-04 · Hemanth Selam <hidden>
• STALE215d LANDED [PATCH v7 5/8] dma-buf: Make .invalidate_mapping() truly optional
  2026-01-31 · Leon Romanovsky <leon@kernel.org>
• STALE215d LANDED [PATCH v7 6/8] dma-buf: Add dma_buf_attach_revocable()
  2026-01-31 · Leon Romanovsky <leon@kernel.org>
• STALE215d REVIEWED: 3 (3M) [PATCH v7 2/8] dma-buf: Rename dma_buf_move_notify() to dma_buf_invalidate_mappings()
  2026-01-31 · Leon Romanovsky <leon@kernel.org>
• STALE215d REVIEWED: 3 (3M) [PATCH v7 3/8] dma-buf: Always build with DMABUF_MOVE_NOTIFY
  2026-01-31 · Leon Romanovsky <leon@kernel.org>
• STALE215d REVIEWED: 3 (3M) [PATCH v7 1/8] dma-buf: Rename .move_notify() callback to a clearer identifier
  2026-01-31 · Leon Romanovsky <leon@kernel.org>
• DORMANTno replies [PATCH v6 5/8] dma-buf: Make .invalidate_mapping() truly optional
  2026-01-30 · Leon Romanovsky <leon@kernel.org>
• STALE239d [PATCH v6 6/8] dma-buf: Add dma_buf_attach_revocable()
  2026-01-30 · Leon Romanovsky <leon@kernel.org>
• STALE239d REVIEWED: 3 (3M) [PATCH v6 1/8] dma-buf: Rename .move_notify() callback to a clearer identifier
  2026-01-30 · Leon Romanovsky <leon@kernel.org>
• STALE239d REVIEWED: 3 (3M) [PATCH v6 3/8] dma-buf: Always build with DMABUF_MOVE_NOTIFY
  2026-01-30 · Leon Romanovsky <leon@kernel.org>
• STALE239d REVIEWED: 3 (3M) [PATCH v6 2/8] dma-buf: Rename dma_buf_move_notify() to dma_buf_invalidate_mappings()
  2026-01-30 · Leon Romanovsky <leon@kernel.org>
• STALE236d LANDED [PATCH v5 3/8] dma-buf: Always build with DMABUF_MOVE_NOTIFY
  2026-01-24 · Leon Romanovsky <leon@kernel.org>
• STALE236d [PATCH v5 6/8] dma-buf: Add dma_buf_attach_revocable()
  2026-01-24 · Leon Romanovsky <leon@kernel.org>
• STALE236d [PATCH v5 5/8] dma-buf: Make .invalidate_mapping() truly optional
  2026-01-24 · Leon Romanovsky <leon@kernel.org>
• STALE236d LANDED: 3 (3M) [PATCH v5 1/8] dma-buf: Rename .move_notify() callback to a clearer identifier
  2026-01-24 · Leon Romanovsky <leon@kernel.org>
• STALE236d LANDED [PATCH v5 2/8] dma-buf: Rename dma_buf_move_notify() to dma_buf_invalidate_mappings()
  2026-01-24 · Leon Romanovsky <leon@kernel.org>
• STALE248d Re: [PATCH v4 8/8] vfio: Validate dma-buf revocation semantics
  2026-01-21 · Pranjal Shrivastava <praan@google.com>
• STALE248d [PATCH v4 5/8] dma-buf: Add check function for revoke semantics
  2026-01-21 · Leon Romanovsky <leon@kernel.org>
• STALE248d [PATCH v4 3/8] dma-buf: Always build with DMABUF_MOVE_NOTIFY
  2026-01-21 · Leon Romanovsky <leon@kernel.org>
• STALE248d [PATCH v4 4/8] dma-buf: Make .invalidate_mapping() truly optional
  2026-01-21 · Leon Romanovsky <leon@kernel.org>
• STALE248d [PATCH v4 2/8] dma-buf: Rename dma_buf_move_notify() to dma_buf_invalidate_mappings()
  2026-01-21 · Leon Romanovsky <leon@kernel.org>
• STALE248d REVIEWED: 3 (3M) [PATCH v4 1/8] dma-buf: Rename .move_notify() callback to a clearer identifier
  2026-01-21 · Leon Romanovsky <leon@kernel.org>
• STALE246d REVIEWED: 3 (3M) [PATCH v3 1/7] dma-buf: Rename .move_notify() callback to a clearer identifier
  2026-01-20 · Leon Romanovsky <leon@kernel.org>
• STALE246d [PATCH v3 4/7] dma-buf: Add check function for revoke semantics
  2026-01-20 · Leon Romanovsky <leon@kernel.org>
• STALE246d [PATCH v3 3/7] dma-buf: Document RDMA non-ODP invalidate_mapping() special case
  2026-01-20 · Leon Romanovsky <leon@kernel.org>
• STALE246d [PATCH v3 2/7] dma-buf: Always build with DMABUF_MOVE_NOTIFY
  2026-01-20 · Leon Romanovsky <leon@kernel.org>
• STALE249d Re: [PATCH v2 2/4] dma-buf: Document revoke semantics
  2026-01-20 · Leon Romanovsky <leon@kernel.org>
• STALE249d Re: [PATCH v2 1/4] dma-buf: Rename .move_notify() callback to a clearer identifier
  2026-01-19 · Leon Romanovsky <leon@kernel.org>
• STALE249d [PATCH v2 2/4] dma-buf: Document revoke semantics
  2026-01-18 · Leon Romanovsky <leon@kernel.org>