Eric Lee / smarc-fsl-linux-kernel

27 May, 2020

1 commit

17 Mar, 2020

1 commit

04 Feb, 2020

1 commit

28 Jun, 2019

1 commit

  • a58946c15   keys: Pass the network namespace into request_key mechanism ... Browse Code »

    Create a request_key_net() function and use it to pass the network
    namespace domain tag into DNS revolver keys and rxrpc/AFS keys so that keys
    for different domains can coexist in the same keyring.

    Signed-off-by: David Howells
    cc: netdev@vger.kernel.org
    cc: linux-nfs@vger.kernel.org
    cc: linux-cifs@vger.kernel.org
    cc: linux-afs@lists.infradead.org

    David Howells
     

16 May, 2019

1 commit

  • d0660f0b3   dns_resolver: Allow used keys to be invalidated ... Browse Code »

    Allow used DNS resolver keys to be invalidated after use if the caller is
    doing its own caching of the results. This reduces the amount of resources
    required.

    Fix AFS to invalidate DNS results to kill off permanent failure records
    that get lodged in the resolver keyring and prevent future lookups from
    happening.

    Fixes: 0a5143f2f89c ("afs: Implement VL server rotation")
    Signed-off-by: David Howells

    David Howells
     

30 Oct, 2018

2 commits

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
     

20 Nov, 2013

1 commit

19 Jun, 2013

1 commit

15 Feb, 2013

4 commits

05 Feb, 2013

1 commit

01 Nov, 2012

1 commit

  • 8d96b1063   NFS: fix bug in legacy DNS resolver. ... Browse Code »

    The DNS resolver's use of the sunrpc cache involves a 'ttl' number
    (relative) rather that a timeout (absolute). This confused me when
    I wrote
    commit c5b29f885afe890f953f7f23424045cdad31d3e4
    "sunrpc: use seconds since boot in expiry cache"

    and I managed to break it. The effect is that any TTL is interpreted
    as 0, and nothing useful gets into the cache.

    This patch removes the use of get_expiry() - which really expects an
    expiry time - and uses get_uint() instead, treating the int correctly
    as a ttl.

    This fixes a regression that has been present since 2.6.37, causing
    certain NFS accesses in certain environments to incorrectly fail.

    Reported-by: Chuck Lever
    Tested-by: Chuck Lever
    Cc: stable@vger.kernel.org
    Signed-off-by: NeilBrown
    Signed-off-by: Trond Myklebust

    NeilBrown
     

31 Jul, 2012

1 commit

  • 89d77c8fa   NFS: Convert v4 into a module ... Browse Code »

    This patch exports symbols needed by the v4 module. In addition, I also
    switch over to using IS_ENABLED() to check if CONFIG_NFS_V4 or
    CONFIG_NFS_V4_MODULE are set.

    The module (nfs4.ko) will be created in the same directory as nfs.ko and
    will be automatically loaded the first time you try to mount over NFS v4.

    Signed-off-by: Bryan Schumaker
    Signed-off-by: Trond Myklebust

    Bryan Schumaker
     

12 Mar, 2012

1 commit

  • 17280175c   NFS: Fix a number of sparse warnings ... Browse Code »

    Fix a number of "warning: symbol 'foo' was not declared. Should it be
    static?" conditions.

    Fix 2 cases of "warning: Using plain integer as NULL pointer"

    fs/nfs/delegation.c:263:31: warning: restricted fmode_t degrades to integer
    - We want to allow upgrades to a WRITE delegation, but should otherwise
    consider servers that hand out duplicate delegations to be borken.

    Signed-off-by: Trond Myklebust

    Trond Myklebust
     

07 Feb, 2012

1 commit

01 Feb, 2012

6 commits

  • 599ec129c   NFS: parse DNS cache in proper network namespace context ... Browse Code »

    This patch replaces "init_net" with cache's owner net in rpc_pton() call.

    Signed-off-by: Stanislav Kinsbursky
    Signed-off-by: Trond Myklebust

    Stanislav Kinsbursky
     
  • 90100b176   SUNRPC: parametrize rpc_pton() by network context ... Browse Code »

    Parametrize rpc_pton() by network context and thus force it's callers to pass
    in network context instead of using hard-coded "init_net".

    Signed-off-by: Stanislav Kinsbursky
    Signed-off-by: Trond Myklebust

    Stanislav Kinsbursky
     
  • 9df69c81b   NFS: DNS resolver PipeFS notifier introduced ... Browse Code »

    This patch subscribes DNS resolver caches to RPC pipefs notifications. Notifier
    is registering on NFS module load. This notifier callback is responsible for
    creation/destruction of PipeFS DNS resolver cache directory.
    Note that no locking required in notifier callback because PipeFS superblock
    pointer is passed as an argument from it's creation or destruction routine and
    thus we can be sure about it's validity.

    Signed-off-by: Stanislav Kinsbursky
    Signed-off-by: Trond Myklebust

    Stanislav Kinsbursky
     
  • 1b340d011   NFS: DNS resolver cache per network namespace context introduced ... Browse Code »

    This patch implements DNS resolver cache creation and registration for each
    alive network namespace context.
    This was done by registering NFS per-net operations, responsible for DNS cache
    allocation/register and unregister/destructioning instead of initialization and
    destruction of static "nfs_dns_resolve" cache detail (this one was removed).
    Pointer to network dns resolver cache is stored in new per-net "nfs_net"
    structure.
    This patch also changes nfs_dns_resolve_name() function prototype (and it's
    calls) by adding network pointer parameter, which is used to get proper DNS
    resolver cache pointer for do_cache_lookup_wait() call.

    Note: empty nfs_dns_resolver_init() and nfs_dns_resolver_destroy() functions
    will be used in next patch in the series.

    Signed-off-by: Stanislav Kinsbursky
    Signed-off-by: Trond Myklebust

    Stanislav Kinsbursky
     
  • 5c1cacb17   NFS: handle NFS caches dentries by network namespace aware routines ... Browse Code »

    This patch makes NFS caches PipeFS dentries allocated and destroyed in network
    namespace context by PipeFS network namespace aware routines.

    Signed-off-by: Stanislav Kinsbursky
    Signed-off-by: Trond Myklebust

    Stanislav Kinsbursky
     
  • 9222b9550   NFS: split cache creation and PipeFS registration ... Browse Code »

    This precursor patch splits NFS cache creation and PipeFS registartion.
    It's required for latter split of NFS DNS resolver cache creation per network
    namespace context and PipeFS registration/unregistration on MOUNT/UMOUNT
    events.

    Signed-off-by: Stanislav Kinsbursky
    Signed-off-by: Trond Myklebust

    Stanislav Kinsbursky
     

08 Sep, 2010

1 commit

12 Aug, 2010

1 commit

  • c2e8139c9   NFS: Use kernel DNS resolver [ver #2] ... Browse Code »

    Use the kernel DNS resolver to translate hostnames to IP addresses. Create a
    new config option to choose between the legacy DNS resolver and the new
    resolver.

    Signed-off-by: Bryan Schumaker
    Acked-by: Trond Myklebust
    Signed-off-by: David Howells
    Signed-off-by: Steve French

    Bryan Schumaker
     

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

03 Mar, 2010

1 commit

04 Dec, 2009

1 commit

20 Aug, 2009

1 commit

  • e571cbf1a   NFS: Add a dns resolver for use with NFSv4 referrals and migration ... Browse Code »

    The NFSv4 and NFSv4.1 protocols both allow for the redirection of a client
    from one server to another in order to support filesystem migration and
    replication. For full protocol support, we need to add the ability to
    convert a DNS host name into an IP address that we can feed to the RPC
    client.

    We'll reuse the sunrpc cache, now that it has been converted to work with
    rpc_pipefs.

    Signed-off-by: Trond Myklebust

    Trond Myklebust