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alloc_irq_table() has a special ioapic argument. If set then it will pre-allocate / reserve the first 32 indexes. The argument is only once true and it would make alloc_irq_table() a little simpler if we would extract the special bits to the caller. The caller of irq_remapping_alloc() is holding irq_domain_mutex so the initialization of iommu->irte_ops->set_allocated() should not race against other user. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Joerg Roedel <jroedel@suse.de> |
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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.