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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-06-07 00:27:51 +0200 |
|---|---|---|
| committer | Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> | 2019-06-26 23:19:22 -0300 |
| commit | e5ff5344f4a44cf9f4606c5c2754d913f06aaae1 (patch) | |
| tree | 08e55b4d0c52eea84289e62701acac60f5ca9d1d /tools/perf/scripts/python/stackcollapse.py | |
| parent | 8b1865873651daeffe412059c2c3c37021b9d92f (diff) | |
drm/vkms: No need for ->pages_lock in crc work anymore
We're now guaranteed to no longer race against prepare_fb/cleanup_fb,
which means we can access ->vaddr without having to hold a lock.
Before the previous patches it was fairly easy to observe the cursor
->vaddr being invalid, but that's now gone, so we can upgrade to a
full WARN_ON.
Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Tested-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190606222751.32567-11-daniel.vetter@ffwll.ch
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
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