mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-09 23:48:56 -04:00
b32fa81115
Enable RCU protection of i915_address_space and its ppgtt superclasses, and defer its cleanup into a worker executed after an RCU grace period. In the future we will be able to use the RCU protection to reduce the locking around VM lookups, but the immediate benefit is being able to defer the release into a kworker (process context). This is required as we may need to sleep to reap the WC pages stashed away inside the ppgtt. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110934 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190620183705.31006-1-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.