Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.
Christophe Leroy
authored
_PAGE_WRITETHRU is only used in: * AMIGA_Z2RAM block driver which is never activated on powerPC * Video/FB driver which is for PPC_PMAC Therefore, no need to spend time in 8xx TLB miss handlers for handling it. And by removing it, we free up bit 20 which then avoids having to clear it on each TLB miss. Signed-off-by:Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>