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Chuck Lever 53bc19f17f SUNRPC: receive buffer size estimation values almost never change
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>
2020-06-11 13:33:47 -04:00
arch A set of EFI fixes: 2020-05-24 10:24:10 -07:00
block
certs
crypto
Documentation
drivers A set of EFI fixes: 2020-05-24 10:24:10 -07:00
fs NFS: remove duplicate headers 2020-05-27 10:10:12 -04:00
include SUNRPC: receive buffer size estimation values almost never change 2020-06-11 13:33:47 -04:00
init
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lib
LICENSES
mm
net SUNRPC: receive buffer size estimation values almost never change 2020-06-11 13:33:47 -04:00
samples
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usr
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.cocciconfig
.get_maintainer.ignore
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Makefile Linux 5.7-rc7 2020-05-24 15:32:54 -07:00
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.