dma-buf: detach fence ops on signal v3

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When neither a release nor a wait backend ops is specified it is possible
to let the dma_fence live on independently of the module who issued it.

This makes it possible to unload drivers and only wait for all their
fences to signal.

v2: fix typo in comment
v3: fix sparse rcu warnings

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Philipp Stanner <phasta@kernel.org>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/r/20260219160822.1529-3-christian.koenig@amd.com

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Christian König 2025-10-08 18:12:46 +02:00

parent f4cc3ab824

commit 541c8f2468

2 changed files with 16 additions and 6 deletions

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18

drivers/dma-buf/dma-fence.c

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4

include/linux/dma-fence.h

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