ea6166f4b8
The function get_irq_table() reads/writes irq_lookup_table while holding the amd_iommu_devtable_lock. It also modifies amd_iommu_dev_table[].data[2]. set_dte_entry() is using amd_iommu_dev_table[].data[0|1] (under the domain->lock) so it should be okay. The access to the iommu is serialized with its own (iommu's) lock. So split out get_irq_table() out of amd_iommu_devtable_lock's lock. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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.