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

Most active threads (last 7 days)

• HOTtoday [PATCH v6 00/12] dma-buf: heaps: Add support for Tegra VPR
  2026-09-04 10:45 · 2 replies in 7d · Thierry Reding <thierry.reding@kernel.org>

Active reviewers (last 30 days)

• Maxime Ripard <mripard@kernel.org>
  2 attestations (2 Reviewed-by) · last on 2026-09-04

Recent patches

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

• HOTtoday [PATCH v6 09/12] dma-buf: heaps: Add support for Tegra VPR
  2026-09-04 · Thierry Reding <thierry.reding@kernel.org>
• HOTtoday REVIEWED: 6 (6M) [PATCH v6 08/12] dma-buf: heaps: Add debugfs support
  2026-09-04 · Thierry Reding <thierry.reding@kernel.org>
• COOLING9d [PATCH v5 1/6] treewide: Get rid of get_task_comm()
  2026-08-27 · André Almeida <andrealmeid@igalia.com>
• COOLING14d REVIEWED: 6 (6M) [PATCH v5 06/10] dma-buf: heaps: Add debugfs support
  2026-08-14 · Thierry Reding <thierry.reding@kernel.org>
• COOLING14d [PATCH v5 07/10] dma-buf: heaps: Add support for Tegra VPR
  2026-08-14 · Thierry Reding <thierry.reding@kernel.org>
• COLD15d [PATCH v4 07/10] dma-buf: heaps: Add support for Tegra VPR
  2026-08-07 · Thierry Reding <thierry.reding@kernel.org>
• COLD15d REVIEWED: 6 (6M) [PATCH v4 06/10] dma-buf: heaps: Add debugfs support
  2026-08-07 · Thierry Reding <thierry.reding@kernel.org>
• COLD29d [PATCH v3 08/11] dma-buf: heaps: Add support for Tegra VPR
  2026-07-01 · Thierry Reding <thierry.reding@kernel.org>
• COLD29d [PATCH v3 07/11] dma-buf: heaps: Add debugfs support
  2026-07-01 · Thierry Reding <thierry.reding@kernel.org>
• DORMANTno replies [PATCH v3 05/11] dma-buf: Use trace_call__##name() at guarded tracepoint call sites
  2026-05-15 · Vineeth Pillai (Google) <hidden>
• STALE142d [PATCH v2 08/19] dma-buf: Use trace_call__##name() at guarded tracepoint call sites
  2026-03-23 · Vineeth Pillai (Google) <hidden>
• STALE174d [PATCH 08/15] dma-buf: Use trace_invoke_##name() at guarded tracepoint call sites
  2026-03-12 · Vineeth Pillai (Google) <hidden>
• STALE176d [PATCH v3 12/12] treewide: change inode->i_ino from unsigned long to u64
  2026-03-04 · Jeff Layton <jlayton@kernel.org>
• STALE188d [PATCH v2 107/110] dma-buf: replace PRIino with %llu/%llx format strings
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE188d [PATCH v2 054/110] dma-buf: use PRIino format for i_ino
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE193d [PATCH 56/61] dma-buf: update format string for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• STALE222d LANDED [PATCH v13] dma-buf: add some tracepoints to debug.
  2026-01-09 · Xiang Gao <hidden>
• STALE245d [PATCH v12] dma-buf: add some tracepoints to debug.
  2025-12-29 · Xiang Gao <hidden>
• STALE254d [PATCH v11] dma-buf: add some tracepoints to debug.
  2025-12-25 · Xiang Gao <hidden>
• STALE258d [PATCH v10] dma-buf: add some tracepoints to debug.
  2025-12-24 · Xiang Gao <hidden>
• STALE244d [PATCH v9] dma-buf: add some tracepoints to debug.
  2025-12-23 · Xiang Gao <hidden>
• STALE260d LANDED [PATCH v8] dma-buf: add some tracepoints to debug.
  2025-12-18 · Xiang Gao <hidden>
• STALE265d [PATCH v7] dma-buf: add some tracepoints to debug.
  2025-12-17 · Xiang Gao <hidden>
• STALE266d [PATCH v6] dma-buf: add some tracepoints to debug.
  2025-12-16 · Xiang Gao <hidden>
• STALE266d [PATCH v5] dma-buf: add some tracepoints to debug.
  2025-12-01 · Xiang Gao <hidden>
• STALE281d [PATCH v4] dma-buf: add some tracepoints to debug.
  2025-11-28 · Xiang Gao <hidden>
• STALE285d [PATCH v3] dma-buf: add some tracepoints to debug.
  2025-11-27 · Xiang Gao <hidden>
• STALE286d [PATCH v2] dma-buf: add some tracepoints to debug.
  2025-11-25 · Xiang Gao <hidden>
• STALE287d [PATCH] dma-buf: add some tracepoints to debug.
  2025-11-24 · Xiang Gao <hidden>
• STALE293d REVIEWED: 9 (9M) [PATCH v3 04/21] dma-buf: Switch to use %ptSp
  2025-11-13 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>

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.

• STALE193d [PATCH 56/61] dma-buf: update format string for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• STALE188d [PATCH v2 054/110] dma-buf: use PRIino format for i_ino
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE188d [PATCH v2 107/110] dma-buf: replace PRIino with %llu/%llx format strings
  2026-03-02 · Jeff Layton <jlayton@kernel.org>