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This is a step to get rid of the global check for disassociation. In this model, the ib_dev is not proven to be valid by the core code and cannot be provided to the method. Instead, every method decides if it is able to run after disassociation and obtains the ib_dev using one of three different approaches: - Call srcu_dereference on the udevice's ib_dev. As before, this means the method cannot be called after disassociation begins. (eg alloc ucontext) - Retrieve the ib_dev from the ucontext, via ib_uverbs_get_ucontext() - Retrieve the ib_dev from the uobject->object after checking under SRCU if disassociation has started (eg uobj_get) Largely, the code is all ready for this, the main work is to provide a ib_dev after calling uobj_alloc(). The few other places simply use ib_uverbs_get_ucontext() to get the ib_dev. This flexibility will let the next patches allow destroy to operate after disassociation. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> |
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| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
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| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
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| COPYING | ||
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| Kbuild | ||
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| README | ||
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 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.