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Files

gaoxiang17 281a226314 dma-buf: add some tracepoints to debug.

Since we can only inspect dmabuf by iterating over process FDs or the
dmabuf_list, we need to add our own tracepoints to track its status in
real time in production.

For example:
   binder:3016_1-3102    [006] ...1.   255.126521: dma_buf_export: exp_name=qcom,system size=12685312 ino=2738
   binder:3016_1-3102    [006] ...1.   255.126528: dma_buf_fd: exp_name=qcom,system size=12685312 ino=2738 fd=8
   binder:3016_1-3102    [006] ...1.   255.126642: dma_buf_mmap_internal: exp_name=qcom,system size=28672 ino=2739
     kworker/6:1-86      [006] ...1.   255.127194: dma_buf_put: exp_name=qcom,system size=12685312 ino=2738
    RenderThread-9293    [006] ...1.   316.618179: dma_buf_get: exp_name=qcom,system size=12771328 ino=2762 fd=176
    RenderThread-9293    [006] ...1.   316.618195: dma_buf_dynamic_attach: exp_name=qcom,system size=12771328 ino=2762 attachment:ffffff880a18dd00 is_dynamic=0 dev_name=kgsl-3d0
    RenderThread-9293    [006] ...1.   318.878220: dma_buf_detach: exp_name=qcom,system size=12771328 ino=2762 attachment:ffffff880a18dd00 is_dynamic=0 dev_name=kgsl-3d0

Signed-off-by: Xiang Gao <gaoxiang17@xiaomi.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20251218062853.819744-1-gxxa03070307@gmail.com
Signed-off-by: Christian König <christian.koenig@amd.com>

2025-12-18 11:21:51 +01:00

events

dma-buf: add some tracepoints to debug.

2025-12-18 11:21:51 +01:00

misc

NFSD: filecache: add STATX_DIOALIGN and STATX_DIO_READ_ALIGN support

2025-09-30 16:10:05 -04:00

stages

tracing: Add __print_dynamic_array() helper

2024-10-30 17:24:32 +01:00

bpf_probe.h

tracepoint: Have tracepoints created with DECLARE_TRACE() have _tp suffix