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af0735269b
Commitbf64f0517e("s390/mem_detect: handle online memory limit just once") introduced truncation of mem_detect online ranges based on identity mapping size. For kdump case however the full set of online memory ranges has to be feed into memblock_physmem_add so that crashed system memory could be extracted. Instead of truncating introduce a "usable limit" which is respected by mem_detect api. Also add extra online memory ranges iterator which still provides full set of online memory ranges disregarding the "usable limit". Fixes:bf64f0517e("s390/mem_detect: handle online memory limit just once") Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com> Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com> Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.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.