02 Nov, 2017

1 commit

  • 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
     

27 Apr, 2017

1 commit

  • In the past, readdir assumed that the user buffer will be large enough
    that all entries from the server will fit. If this was not true,
    entries would be skipped.

    Since it works now, request 512 entries rather than 96 per server
    operation.

    Signed-off-by: Martin Brandenburg
    Signed-off-by: Mike Marshall

    Martin Brandenburg
     

13 Aug, 2016

1 commit

  • This is a new userspace operation, which will be done if the client-core
    version is greater than or equal to 2.9.6. This will provide a way to
    implement optional features and to determine which features are
    supported by the client-core. If the client-core version is older than
    2.9.6, no optional features are supported and the op will not be done.

    The intent is to allow protocol extensions without relying on the
    client-core's current behavior of ignoring what it doesn't understand.

    Signed-off-by: Martin Brandenburg

    Martin Brandenburg
     

09 Aug, 2016

1 commit

  • This will support a upcoming request where two related values need to be
    updated atomically.

    This was done without a union in the OrangeFS server source already. Since
    that will break the kernel protocol, it has been fixed there and done here
    in a way that does not break the kernel protocol.

    Signed-off-by: Martin Brandenburg

    Martin Brandenburg
     

25 Feb, 2016

1 commit


04 Dec, 2015

1 commit

  • OrangeFS was formerly known as PVFS2 and retains the name in many places.

    I leave the device /dev/pvfs2-req since this affects userspace.

    I leave the filesystem type pvfs2 since this affects userspace. Further
    the OrangeFS sysint library reads fstab for an entry of type pvfs2
    independently of kernel mounts.

    I leave extended attribute keys user.pvfs2 and system.pvfs2 as the
    sysint library understands these.

    I leave references to userspace binaries still named pvfs2.

    I leave the filenames.

    Signed-off-by: Yi Liu
    [martin@omnibond.com: clairify above constraints and merge]
    Signed-off-by: Martin Brandenburg
    Signed-off-by: Mike Marshall

    Yi Liu
     

14 Nov, 2015

1 commit


06 Oct, 2015

1 commit


03 Oct, 2015

1 commit

  • OrangeFS (formerly PVFS) is an lgpl licensed userspace networked parallel
    file system. OrangeFS can be accessed through included system utilities,
    user integration libraries, MPI-IO and can be used by the Hadoop
    ecosystem as an alternative to the HDFS filesystem. OrangeFS is used
    widely for parallel science, data analytics and engineering applications.

    While applications often don't require Orangefs to be mounted into
    the VFS, users do like to be able to access their files in the normal way.
    The Orangefs kernel client allows Orangefs filesystems to be mounted as
    a VFS. The kernel client communicates with a userspace daemon which in
    turn communicates with the Orangefs server daemons that implement the
    filesystem. The server daemons (there's almost always more than one)
    need not be running on the same host as the kernel client.

    Orangefs filesystems can also be mounted with FUSE, and we
    ship code and instructions to facilitate that, but most of our users
    report preferring to use our kernel module instead. Further, as an example
    of a problem we can't solve with fuse, we have in the works a
    not-yet-ready-for-prime-time version of a file_operations lock function
    that accounts for the server daemons being distributed across more
    than one running kernel.

    Many people and organizations, including Clemson University,
    Argonne National Laboratories and Acxiom Corporation have
    helped to create what has become Orangefs over more than twenty
    years. Some of the more recent contributors to the kernel client
    include:

    Mike Marshall
    Christoph Hellwig
    Randy Martin
    Becky Ligon
    Walt Ligon
    Michael Moore
    Rob Ross
    Phil Carnes

    Signed-off-by: Mike Marshall

    Mike Marshall