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86e74965bb
vmalloc() does not guarantee any alignment, unless it is explicitly requested with e.g. __vmalloc_node(). Using diag204() with subcode 7 requires a 4k aligned virtual buffer. Therefore switch to __vmalloc_node(). Note: with the current vmalloc() implementation callers would still get a 4k aligned area, even though this is quite non-obvious looking at the code. So changing this in sthyi doesn't fix a real bug. It is just to make sure the code will not suffer from some obscure options, like it happened in the past with kmalloc() where debug options changed the assumed alignment of allocated memory areas. Acked-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
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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.