drm/i915: Hold struct_mutex for per-file stats in debugfs/i915_gem_object

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As we walk the obj->vma_list in per_file_stats(), we need to hold
struct_mutex to prevent alteration of that list.

Fixes: 1d2ac403ae ("drm: Protect dev->filelist with its own mutex")
Fixes: c84455b4ba ("drm/i915: Move debug only per-request pid tracking from request to ctx")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101460
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170617115744.4452-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

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Chris Wilson 2017-06-17 12:57:44 +01:00

parent 7a3bc034ed

commit 0caf81b5c5

1 changed files with 5 additions and 1 deletions

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drivers/gpu/drm/i915/i915_debugfs.c

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