ca432dcc27
migrate_vma_setup may return cpages 0, means 0 page can be migrated, treat this as error case to skip the rest of vma migration steps. Change svm_migrate_vma_to_vram and svm_migrate_vma_to_ram to return the number of pages migrated successfully or error code. The caller add up all the successful migration pages and update prange->actual_loc only if the total migrated pages is not 0. This also removes the warning message "VRAM BO missing during validation" if migration cpages is 0. Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.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.