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We want to wait dma fences in dirtyfb ioctl. As we don't want to make dirtyfb ioctl as blocking call we need to use dma_fence_add_callback. Callback used for dma_fence_add_callback is called from atomic context. Due to this we need to add a new frontbuffer tracking interface to queue flush. v3: - Check schedule work success rather than work being pending - Init flush work when frontbuffer struct is initialized v2: Check if flush work is already pending Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230901093500.3463046-4-jouni.hogander@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.