e45b98ba62
The gpu coredump typically takes place in a dma_fence signalling critical path, and hence can't use GFP_KERNEL allocations, as that means we might hit deadlocks under memory pressure. However changing to __GFP_KSWAPD_RECLAIM which will be done in an upcoming patch will instead mean a lower chance of the allocation succeeding. In particular large contigous allocations like the coredump page vector. Remove the page vector in favor of a linked list of single pages. Use the page lru list head as the list link, as the page owner is allowed to do that. Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Ramalingam C <ramalingam.c@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211108174547.979714-2-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.