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If we push the locks down we don't have to take them all at the same time. Aside: Making dump_info fully safe should be fairly simple, if we protect the ->state pointers with rcu. Simply putting a synchronize_rcu() into the drm_atomic_state free function should be all that's roughly needed. Well except we shouldn't block in there, so better to put that into a work_struct. But I've not set out to fix that little issue. Cc: Rob Clark <robdclark@gmail.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170403083304.9083-6-daniel.vetter@ffwll.ch
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.