Eric Lee / smarc-fsl-linux-kernel

29 Dec, 2011

1 commit

29 Nov, 2011

1 commit

14 Apr, 2011

1 commit

21 Apr, 2010

1 commit

  • aa3951451   net: sk_sleep() helper ... Browse Code »

    Define a new function to return the waitqueue of a "struct sock".

    static inline wait_queue_head_t *sk_sleep(struct sock *sk)
    {
    return sk->sk_sleep;
    }

    Change all read occurrences of sk_sleep by a call to this function.

    Needed for a future RCU conversion. sk_sleep wont be a field directly
    available.

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

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
     

11 Feb, 2010

1 commit

26 Nov, 2009

1 commit

  • 09ad9bc75   net: use net_eq to compare nets ... Browse Code »

    Generated with the following semantic patch

    @@
    struct net *n1;
    struct net *n2;
    @@
    - n1 == n2
    + net_eq(n1, n2)

    @@
    struct net *n1;
    struct net *n2;
    @@
    - n1 != n2
    + !net_eq(n1, n2)

    applied over {include,net,drivers/net}.

    Signed-off-by: Octavian Purdila
    Signed-off-by: David S. Miller

    Octavian Purdila
     

06 Nov, 2009

1 commit

  • 3f378b684   net: pass kern to net_proto_family create function ... Browse Code »

    The generic __sock_create function has a kern argument which allows the
    security system to make decisions based on if a socket is being created by
    the kernel or by userspace. This patch passes that flag to the
    net_proto_family specific create function, so it can do the same thing.

    Signed-off-by: Eric Paris
    Acked-by: Arnaldo Carvalho de Melo
    Signed-off-by: David S. Miller

    Eric Paris
     

07 Oct, 2009

1 commit

01 Oct, 2009

1 commit

  • b7058842c   net: Make setsockopt() optlen be unsigned. ... Browse Code »

    This provides safety against negative optlen at the type
    level instead of depending upon (sometimes non-trivial)
    checks against this sprinkled all over the the place, in
    each and every implementation.

    Based upon work done by Arjan van de Ven and feedback
    from Linus Torvalds.

    Signed-off-by: David S. Miller

    David S. Miller
     

07 Aug, 2009

1 commit

18 Jun, 2009

1 commit

  • 31e6d363a   net: correct off-by-one write allocations reports ... Browse Code »

    commit 2b85a34e911bf483c27cfdd124aeb1605145dc80
    (net: No more expensive sock_hold()/sock_put() on each tx)
    changed initial sk_wmem_alloc value.

    We need to take into account this offset when reporting
    sk_wmem_alloc to user, in PROC_FS files or various
    ioctls (SIOCOUTQ/TIOCOUTQ)

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

17 Jun, 2009

1 commit

  • c564039fd   net: sk_wmem_alloc has initial value of one, not zero ... Browse Code »

    commit 2b85a34e911bf483c27cfdd124aeb1605145dc80
    (net: No more expensive sock_hold()/sock_put() on each tx)
    changed initial sk_wmem_alloc value.

    Some protocols check sk_wmem_alloc value to determine if a timer
    must delay socket deallocation. We must take care of the sk_wmem_alloc
    value being one instead of zero when no write allocations are pending.

    Reported by Ingo Molnar, and full diagnostic from David Miller.

    This patch introduces three helpers to get read/write allocations
    and a followup patch will use these helpers to report correct
    write allocations to user.

    Reported-by: Ingo Molnar
    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

22 Apr, 2009

1 commit

  • cc29c70dd   net/netrom: Fix socket locking ... Browse Code »

    Patch "af_rose/x25: Sanity check the maximum user frame size"
    (commit 83e0bbcbe2145f160fbaa109b0439dae7f4a38a9) from Alan Cox got
    locking wrong. If we bail out due to user frame size being too large,
    we must unlock the socket beforehand.

    Signed-off-by: Jean Delvare
    Signed-off-by: David S. Miller

    Jean Delvare
     

28 Mar, 2009

1 commit

27 Mar, 2009

1 commit

22 Mar, 2009

1 commit

  • a3ac80a13   netrom: zero length frame filtering in NetRom ... Browse Code »

    A zero length frame filter was recently introduced in ROSE protocole.
    Previous commit makes the same at AX25 protocole level.
    This patch has the same purpose for NetRom protocole.
    The reason is that empty frames have no meaning in NetRom protocole.

    Signed-off-by: Bernard Pidoux
    Signed-off-by: David S. Miller

    Bernard Pidoux
     

22 Jan, 2009

1 commit

14 Nov, 2008

1 commit

  • ba95b2353   CRED: Wrap task credential accesses in the netrom protocol ... Browse Code »

    Wrap access to task credentials so that they can be separated more easily from
    the task_struct during the introduction of COW creds.

    Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

    Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more
    sense to use RCU directly rather than a convenient wrapper; these will be
    addressed by later patches.

    Signed-off-by: David Howells
    Reviewed-by: James Morris
    Acked-by: Serge Hallyn
    Acked-by: Ralf Baechle
    Cc: linux-hams@vger.kernel.org
    Signed-off-by: James Morris

    David Howells
     

07 Oct, 2008

1 commit

  • 859f4c74d   netrom: Fix sock_orphan() use in nr_release ... Browse Code »

    While debugging another bug it was found that NetRom socks
    are sometimes seen unorphaned in sk_free(). This patch moves
    sock_orphan() in nr_release() to the beginning (like in ax25,
    or rose).

    Reported-and-tested-by: Bernard Pidoux f6bvp
    Signed-off-by: Jarek Poplawski
    Signed-off-by: David S. Miller

    Jarek Poplawski
     

23 Jul, 2008

1 commit

20 Jul, 2008

1 commit

18 Jul, 2008

1 commit

  • e8a0464cc   netdev: Allocate multiple queues for TX. ... Browse Code »
    43

    alloc_netdev_mq() now allocates an array of netdev_queue
    structures for TX, based upon the queue_count argument.

    Furthermore, all accesses to the TX queues are now vectored
    through the netdev_get_tx_queue() and netdev_for_each_tx_queue()
    interfaces. This makes it easy to grep the tree for all
    things that want to get to a TX queue of a net device.

    Problem spots which are not really multiqueue aware yet, and
    only work with one queue, can easily be spotted by grepping
    for all netdev_get_tx_queue() calls that pass in a zero index.

    Signed-off-by: David S. Miller

    David S. Miller
     

09 Jul, 2008

1 commit

17 Jun, 2008

2 commits

26 Mar, 2008

2 commits

01 Nov, 2007

1 commit

  • 6257ff217   [NET]: Forget the zero_it argument of sk_alloc() ... Browse Code »

    Finally, the zero_it argument can be completely removed from
    the callers and from the function prototype.

    Besides, fix the checkpatch.pl warnings about using the
    assignments inside if-s.

    This patch is rather big, and it is a part of the previous one.
    I splitted it wishing to make the patches more readable. Hope
    this particular split helped.

    Signed-off-by: Pavel Emelyanov
    Signed-off-by: David S. Miller

    Pavel Emelyanov
     

11 Oct, 2007

3 commits

  • e9dc86534   [NET]: Make device event notification network namespace safe ... Browse Code »

    Every user of the network device notifiers is either a protocol
    stack or a pseudo device. If a protocol stack that does not have
    support for multiple network namespaces receives an event for a
    device that is not in the initial network namespace it quite possibly
    can get confused and do the wrong thing.

    To avoid problems until all of the protocol stacks are converted
    this patch modifies all netdev event handlers to ignore events on
    devices that are not in the initial network namespace.

    As the rest of the code is made network namespace aware these
    checks can be removed.

    Signed-off-by: Eric W. Biederman
    Signed-off-by: David S. Miller

    Eric W. Biederman
     
  • 1b8d7ae42   [NET]: Make socket creation namespace safe. ... Browse Code »

    This patch passes in the namespace a new socket should be created in
    and has the socket code do the appropriate reference counting. By
    virtue of this all socket create methods are touched. In addition
    the socket create methods are modified so that they will fail if
    you attempt to create a socket in a non-default network namespace.

    Failing if we attempt to create a socket outside of the default
    network namespace ensures that as we incrementally make the network stack
    network namespace aware we will not export functionality that someone
    has not audited and made certain is network namespace safe.
    Allowing us to partially enable network namespaces before all of the
    exotic protocols are supported.

    Any protocol layers I have missed will fail to compile because I now
    pass an extra parameter into the socket creation code.

    [ Integrated AF_IUCV build fixes from Andrew Morton... -DaveM ]

    Signed-off-by: Eric W. Biederman
    Signed-off-by: David S. Miller

    Eric W. Biederman
     
  • 457c4cbc5   [NET]: Make /proc/net per network namespace ... Browse Code »

    This patch makes /proc/net per network namespace. It modifies the global
    variables proc_net and proc_net_stat to be per network namespace.
    The proc_net file helpers are modified to take a network namespace argument,
    and all of their callers are fixed to pass &init_net for that argument.
    This ensures that all of the /proc/net files are only visible and
    usable in the initial network namespace until the code behind them
    has been updated to be handle multiple network namespaces.

    Making /proc/net per namespace is necessary as at least some files
    in /proc/net depend upon the set of network devices which is per
    network namespace, and even more files in /proc/net have contents
    that are relevant to a single network namespace.

    Signed-off-by: Eric W. Biederman
    Signed-off-by: David S. Miller

    Eric W. Biederman
     

19 Jul, 2007

1 commit

11 Jul, 2007

1 commit

26 Apr, 2007

5 commits

13 Feb, 2007

1 commit

  • da7071d7e   [PATCH] mark struct file_operations const 8 ... Browse Code »

    Many struct file_operations in the kernel can be "const". Marking them const
    moves these to the .rodata section, which avoids false sharing with potential
    dirty data. In addition it'll catch accidental writes at compile time to
    these shared resources.

    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arjan van de Ven