05d197ff49
commit 2826d447fbd60e6a05e53d5f918bceb8c04e315c upstream. The obj->base.resv may be shared across many objects, some of which may still be live and locked, preventing objects from being freed indefintely. We could individualise the lock during the free, or rely on a freed object having no contention and being able to immediately free the pages it owns. References: https://gitlab.freedesktop.org/drm/intel/-/issues/6469 Fixes: be7612fd6665 ("drm/i915: Require object lock when freeing pages during destruction") Fixes: 6cb12fbda1c2 ("drm/i915: Use trylock instead of blocking lock for __i915_gem_free_objects.") Cc: <stable@vger.kernel.org> # v5.17+ Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Tested-by: Nirmoy Das <nirmoy.das@intel.com> Acked-by: Nirmoy Das <nirmoy.das@intel.com> Signed-off-by: Nirmoy Das <nirmoy.das@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220726144844.18429-1-nirmoy.das@intel.com (cherry picked from commit 7dd5c56531eb03696acdb17774721de5ef481c0b) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.