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MRs are now allocated on demand so we can safely throw them away on disconnect. This way an idle transport can disconnect and it won't pin hardware MR resources. Two additional changes: - Now that all MRs are destroyed on disconnect, there's no need to check during header marshaling if a req has MRs to recycle. Each req is sent only once per connection, and now rl_registered is guaranteed to be empty when rpcrdma_marshal_req is invoked. - Because MRs are now destroyed in a WQ_MEM_RECLAIM context, they also must be allocated in a WQ_MEM_RECLAIM context. This reduces the likelihood that device driver memory allocation will trigger memory reclaim during NFS writeback. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
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| net | ||
| samples | ||
| scripts | ||
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| sound | ||
| tools | ||
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| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
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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.
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.