b0647a5e79
Abuse^W Take advantage that we know we are inside the GT wakeref and that prevents any client execbuf from reopening the i915_vma in order to claim all the vma to close without having to drop the spinlock to free each one individually. By keeping the spinlock, we do not have to restart if we run concurrently with i915_gem_free_objects -- which causes them both to restart continually and make very very slow progress. Closes: https://gitlab.freedesktop.org/drm/intel/issues/1361 Fixes: 77853186e547 ("drm/i915: Claim vma while under closed_lock in i915_vma_parked()") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200323092841.22240-2-chris@chris-wilson.co.uk (cherry picked from commit 3447c4c55d0edc95742fdcd91c3efb050546b907) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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.