]> git.baikalelectronics.ru Git - kernel.git/commit
dma-fence: Avoid list_del during fence->cb_list iteration
authorChris Wilson <chris@chris-wilson.co.uk>
Sat, 17 Aug 2019 14:47:34 +0000 (15:47 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Sat, 17 Aug 2019 17:03:00 +0000 (18:03 +0100)
commit8ce68f7cd1f0b242a2448a1104c9aebb527040c7
tree9461feb021ab3950edcb90efe4c2936f09c67bf0
parent0aba794221974250857fe424e7c399382c3fc945
dma-fence: Avoid list_del during fence->cb_list iteration

Before we notify the fence signal callback, we remove the cb from the
list. However, since we are processing the entire list from underneath
the spinlock, we do not need to individual delete each element, but can
simply reset the link and the entire list.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190817144736.7826-4-chris@chris-wilson.co.uk
drivers/dma-buf/dma-fence.c