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When the irqaffinity= kernel parameter is passed in a CPUMASK_OFFSTACK=y kernel, it fails to boot, because zalloc_cpumask_var() cannot be used before initializing the slab allocator to allocate a cpumask. So, use alloc_bootmem_cpumask_var() instead. Also do some cleanups while at it: in init_irq_default_affinity() remove an #ifdef via using cpumask_available(). Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20171026045800.27087-1-rakib.mullick@gmail.com Link: http://lkml.kernel.org/r/20171101041451.12581-1-rakib.mullick@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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.