Eric Lee / smarc-fsl-linux-kernel

09 May, 2020

1 commit

  • f2a8d52e0   nsproxy: add struct nsset ... Browse Code »

    Add a simple struct nsset. It holds all necessary pieces to switch to a new
    set of namespaces without leaving a task in a half-switched state which we
    will make use of in the next patch. This patch switches the existing setns
    logic over without causing a change in setns() behavior. This brings
    setns() closer to how unshare() works(). The prepare_ns() function is
    responsible to prepare all necessary information. This has two reasons.
    First it minimizes dependencies between individual namespaces, i.e. all
    install handler can expect that all fields are properly initialized
    independent in what order they are called in. Second, this makes the code
    easier to maintain and easier to follow if it needs to be changed.

    The prepare_ns() helper will only be switched over to use a flags argument
    in the next patch. Here it will still use nstype as a simple integer
    argument which was argued would be clearer. I'm not particularly
    opinionated about this if it really helps or not. The struct nsset itself
    already contains the flags field since its name already indicates that it
    can contain information required by different namespaces. None of this
    should have functional consequences.

    Signed-off-by: Christian Brauner
    Reviewed-by: Serge Hallyn
    Cc: Eric W. Biederman
    Cc: Serge Hallyn
    Cc: Jann Horn
    Cc: Michael Kerrisk
    Cc: Aleksa Sarai
    Link: https://lore.kernel.org/r/20200505140432.181565-2-christian.brauner@ubuntu.com

    Christian Brauner
     

02 Nov, 2017

1 commit

  • b24413180   License cleanup: add SPDX GPL-2.0 license identifier to files with no license ... Browse Code »

    Many source files in the tree are missing licensing information, which
    makes it harder for compliance tools to determine the correct license.

    By default all files without license information are under the default
    license of the kernel, which is GPL version 2.

    Update the files which contain no license information with the 'GPL-2.0'
    SPDX license identifier. The SPDX identifier is a legally binding
    shorthand, which can be used instead of the full boiler plate text.

    This patch is based on work done by Thomas Gleixner and Kate Stewart and
    Philippe Ombredanne.

    How this work was done:

    Patches were generated and checked against linux-4.14-rc6 for a subset of
    the use cases:
    - file had no licensing information it it.
    - file was a */uapi/* one with no licensing information in it,
    - file was a */uapi/* one with existing licensing information,

    Further patches will be generated in subsequent months to fix up cases
    where non-standard license headers were used, and references to license
    had to be inferred by heuristics based on keywords.

    The analysis to determine which SPDX License Identifier to be applied to
    a file was done in a spreadsheet of side by side results from of the
    output of two independent scanners (ScanCode & Windriver) producing SPDX
    tag:value files created by Philippe Ombredanne. Philippe prepared the
    base worksheet, and did an initial spot review of a few 1000 files.

    The 4.13 kernel was the starting point of the analysis with 60,537 files
    assessed. Kate Stewart did a file by file comparison of the scanner
    results in the spreadsheet to determine which SPDX license identifier(s)
    to be applied to the file. She confirmed any determination that was not
    immediately clear with lawyers working with the Linux Foundation.

    Criteria used to select files for SPDX license identifier tagging was:
    - Files considered eligible had to be source code files.
    - Make and config files were included as candidates if they contained >5
    lines of source
    - File already had some variant of a license header in it (even if
    Reviewed-by: Philippe Ombredanne
    Reviewed-by: Thomas Gleixner
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

07 Mar, 2017

1 commit

  • 387ad9674   kernel: convert cgroup_namespace.count from atomic_t to refcount_t ... Browse Code »

    refcount_t type and corresponding API should be
    used instead of atomic_t when the variable is used as
    a reference counter. This allows to avoid accidental
    refcounter overflows that might lead to use-after-free
    situations.

    Signed-off-by: Elena Reshetova
    Signed-off-by: Hans Liljestrand
    Signed-off-by: Kees Cook
    Signed-off-by: David Windsor
    Signed-off-by: Tejun Heo

    Elena Reshetova
     

03 Mar, 2017

1 commit

28 Dec, 2016

1 commit