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d6b47dec36
Currently attach device path takes protection domain lock followed by dev_data lock. Most of the operations in this function is specific to device data except pdom_attach_iommu() where it updates protection domain structure. Hence reduce the scope of protection domain lock. Note that this changes the locking order. Now it takes device lock before taking doamin lock (group->mutex -> dev_data->lock -> pdom->lock). dev_data->lock is used only in device attachment path. So changing order is fine. It will not create any issue. Finally move numa node assignment to pdom_attach_iommu(). Signed-off-by: Vasant Hegde <vasant.hegde@amd.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20241030063556.6104-8-vasant.hegde@amd.com Signed-off-by: Joerg Roedel <jroedel@suse.de> |
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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 reStructuredText markup notation.
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.