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8a7aa286ab
When allocating page array for a request the array for the page pointers and the array for page descriptors are allocated by two separate kmalloc() calls. Merge these into one allocation. Also instead of initializing the request and the page arrays with memset(), use the zeroing allocation variants. Reserved requests never carry pages (page array size is zero). Make that explicit by initializing the page array pointers to NULL and make sure the assumption remains true by adding a WARN_ON(). Signed-off-by: Miklos Szeredi <mszeredi@redhat.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.