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

Active reviewers (last 30 days)

• Steven Rostedt <rostedt@goodmis.org>
  1 attestation (1 Suggested-by) · last on 2026-05-15
• Peter Zijlstra <peterz@infradead.org>
  1 attestation (1 Suggested-by) · last on 2026-05-15

Recent patches

Most-recent 30 patches in this subsystem on linux-trace-kernel (capped at 30), ordered by date desc.

• [PATCH v3 05/11] dma-buf: Use trace_call__##name() at guarded tracepoint call sites
  2026-05-15 · Vineeth Pillai (Google) <hidden>
• [PATCH v2 08/19] dma-buf: Use trace_call__##name() at guarded tracepoint call sites
  2026-03-23 · Vineeth Pillai (Google) <hidden>
• [PATCH 08/15] dma-buf: Use trace_invoke_##name() at guarded tracepoint call sites
  2026-03-12 · Vineeth Pillai (Google) <hidden>
• [PATCH v3 12/12] treewide: change inode->i_ino from unsigned long to u64
  2026-03-04 · Jeff Layton <jlayton@kernel.org>
• [PATCH v2 107/110] dma-buf: replace PRIino with %llu/%llx format strings
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• [PATCH v2 054/110] dma-buf: use PRIino format for i_ino
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• [PATCH 56/61] dma-buf: update format string for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• [PATCH v13] dma-buf: add some tracepoints to debug.
  2026-01-09 · Xiang Gao <hidden>
• [PATCH v12] dma-buf: add some tracepoints to debug.
  2025-12-29 · Xiang Gao <hidden>
• [PATCH v11] dma-buf: add some tracepoints to debug.
  2025-12-25 · Xiang Gao <hidden>
• [PATCH v10] dma-buf: add some tracepoints to debug.
  2025-12-24 · Xiang Gao <hidden>
• [PATCH v9] dma-buf: add some tracepoints to debug.
  2025-12-23 · Xiang Gao <hidden>
• [PATCH v8] dma-buf: add some tracepoints to debug.
  2025-12-18 · Xiang Gao <hidden>
• [PATCH v7] dma-buf: add some tracepoints to debug.
  2025-12-17 · Xiang Gao <hidden>
• [PATCH v6] dma-buf: add some tracepoints to debug.
  2025-12-16 · Xiang Gao <hidden>
• [PATCH v5] dma-buf: add some tracepoints to debug.
  2025-12-01 · Xiang Gao <hidden>
• [PATCH v4] dma-buf: add some tracepoints to debug.
  2025-11-28 · Xiang Gao <hidden>
• [PATCH v3] dma-buf: add some tracepoints to debug.
  2025-11-27 · Xiang Gao <hidden>
• [PATCH v2] dma-buf: add some tracepoints to debug.
  2025-11-25 · Xiang Gao <hidden>
• [PATCH] dma-buf: add some tracepoints to debug.
  2025-11-24 · Xiang Gao <hidden>
• [PATCH v3 04/21] dma-buf: Switch to use %ptSp
  2025-11-13 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• [PATCH v2 04/21] dma-buf: Switch to use %ptSp
  2025-11-11 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• [PATCH v1 05/23] dma-buf: Switch to use %ptSp
  2025-11-10 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• [PATCH v8 3/5] treewide: Replace 'get_task_comm()' with 'strscpy_pad()'
  2025-08-21 · Bhupesh <hidden>
• [PATCH v7 3/4] treewide: Replace 'get_task_comm()' with 'strscpy_pad()'
  2025-08-11 · Bhupesh <hidden>
• [PATCH] tracing/treewide: Remove second parameter of __assign_str()
  2024-05-16 · Steven Rostedt <rostedt@goodmis.org>
• [FYI][PATCH] tracing/treewide: Remove second parameter of __assign_str()
  2024-02-23 · Steven Rostedt <rostedt@goodmis.org>
• [PATCH v3 2/8] dma-buf/fence-chain: use trace_dma_fence_sync_to
  2024-02-16 · Pierre-Eric Pelloux-Prayer <hidden>
• [PATCH v3 1/8] tracing, dma-buf: add a trace_dma_fence_sync_to event
  2024-02-16 · Pierre-Eric Pelloux-Prayer <hidden>
• [PATCH v2 2/6] dma-buf/fence-chain: use trace_dma_fence_sync_to
  2024-02-13 · Pierre-Eric Pelloux-Prayer <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.

• [PATCH 56/61] dma-buf: update format string for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• [PATCH v2 054/110] dma-buf: use PRIino format for i_ino
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• [PATCH v2 107/110] dma-buf: replace PRIino with %llu/%llx format strings
  2026-03-02 · Jeff Layton <jlayton@kernel.org>