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096a42dd19
The obj->lut_list is traversed when the object is closed as the file table is destroyed during process termination. As this occurs before we kill any outstanding context if, due to some bug or another, the closure is blocked, then we fail to shootdown any inflight operations potentially leaving the GPU spinning forever. As we only need to guard the list against concurrent closures and insertions, the hold is short and merits being treated as a simple spinlock. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200701084439.17025-1-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.