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authorLizhi Hou2024-12-06 13:59:55 -0800
committerJeffrey Hugo2024-12-13 09:32:57 -0700
commitcfc722fc1c72e415d5f473affcdb3f3f556233f6 (patch)
tree443212d17975f59bd6d6ca5561ff02464d8c14f7 /tools/perf/scripts/python/stackcollapse.py
parentc3772d6c04c8a61c0e11831e4de857aff95385f0 (diff)
accel/amdxdna: Replace mmput with mmput_async to avoid dead lock
Hardware mailbox message receiving handler calls mmput to release the process mm. If the process has already exited, the mmput here may call mmu notifier handler, amdxdna_hmm_invalidate, which will cause a dead lock. Using mmput_async instead prevents this dead lock. Fixes: aac243092b70 ("accel/amdxdna: Add command execution") Signed-off-by: Lizhi Hou <lizhi.hou@amd.com> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241206220001.164049-3-lizhi.hou@amd.com
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