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| author | Chris Wilson <[email protected]> | 2019-09-12 12:56:34 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-09-12 13:55:03 +0000 |
| commit | 505a8ec7e11ae5236c4a154a1e24ef49a8349600 (patch) | |
| tree | 9d1fac93a7f0a94710763bc2ef19ff4e623ca262 /drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | |
| parent | Merge tag 'for-linus-20190912' of gitolite.kernel.org:pub/scm/linux/kernel/gi... (diff) | |
| download | kernel-505a8ec7e11ae5236c4a154a1e24ef49a8349600.tar.gz kernel-505a8ec7e11ae5236c4a154a1e24ef49a8349600.zip | |
Revert "drm/i915/userptr: Acquire the page lock around set_page_dirty()"
The userptr put_pages can be called from inside try_to_unmap, and so
enters with the page lock held on one of the object's backing pages. We
cannot take the page lock ourselves for fear of recursion.
Reported-by: Lionel Landwerlin <[email protected]>
Reported-by: Martin Wilck <[email protected]>
Reported-by: Leo Kraav <[email protected]>
Fixes: aa56a292ce62 ("drm/i915/userptr: Acquire the page lock around set_page_dirty()")
References: https://bugzilla.kernel.org/show_bug.cgi?id=203317
Signed-off-by: Chris Wilson <[email protected]>
Cc: Tvrtko Ursulin <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c')
0 files changed, 0 insertions, 0 deletions