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53bc19f17f
Avoid unnecessary cache sloshing by placing the buffer size estimation update logic behind an atomic bit flag. The size of GSS information included in each wrapped Reply does not change during the lifetime of a GSS context. Therefore, the au_rslack and au_ralign fields need to be updated only once after establishing a fresh GSS credential. Thus a slack size update must occur after a cred is created, duplicated, renewed, or expires. I'm not sure I have this exactly right. A trace point is introduced to track updates to these variables to enable troubleshooting the problem if I missed a spot. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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.