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Since the worker may rearm, we currently are only guaranteed to flush the work if we cancel the timer. If the work was running at the time we try and cancel it, we will wait for it to complete, but it may leave items in the pool and requeue the work. If we rearrange the immediate discard of the pool then cancel the work, we know that the work cannot rearm and so our flush will be final. <0> [314.146044] i915_mod-1321 2.... 299799443us : intel_gt_fini_buffer_pool: intel_gt_fini_buffer_pool:227 GEM_BUG_ON(!list_empty(&pool->cache_list[n])) Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1920 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200525141957.3061-1-chris@chris-wilson.co.uk
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.