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When swapping in, or under memory pressure ttm_tt_populate() may sleep for a substantiable amount of time. Allow interrupts during the sleep. This will also allow us to inject -EINTR errors during swapin in upcoming patches. Also avoid returning VM_FAULT_OOM, since that will confuse the core mm, making it print out a confused message and retrying the fault. Return VM_FAULT_SIGBUS also under OOM conditions. Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230404200650.11043-4-thomas.hellstrom@linux.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.