Eric Lee / smarc-fsl-linux-kernel

06 Jul, 2011

1 commit

20 Jan, 2011

1 commit

11 Jan, 2011

1 commit

  • bfe0d0298   net_sched: factorize qdisc stats handling ... Browse Code »

    HTB takes into account skb is segmented in stats updates.
    Generalize this to all schedulers.

    They should use qdisc_bstats_update() helper instead of manipulating
    bstats.bytes and bstats.packets

    Add bstats_update() helper too for classes that use
    gnet_stats_basic_packed fields.

    Note : Right now, TCQ_F_CAN_BYPASS shortcurt can be taken only if no
    stab is setup on qdisc.

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

    Eric Dumazet
     

18 Aug, 2010

1 commit

  • 1c40be12f   net sched: fix some kernel memory leaks ... Browse Code »

    We leak at least 32bits of kernel memory to user land in tc dump,
    because we dont init all fields (capab ?) of the dumped structure.

    Use C99 initializers so that holes and non explicit fields are zeroed.

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

    Eric Dumazet
     

15 Jul, 2010

1 commit

  • 0eff683f7   net/sched: potential data corruption ... Browse Code »

    The reset_policy() does:
    memset(d->tcfd_defdata, 0, SIMP_MAX_DATA);
    strlcpy(d->tcfd_defdata, defdata, SIMP_MAX_DATA);

    In the original code, the size of d->tcfd_defdata wasn't fixed and if
    strlen(defdata) was less than 31, reset_policy() would cause memory
    corruption.

    Please Note: The original alloc_defdata() assumes defdata is 32
    characters and a NUL terminator while reset_policy() assumes defdata is
    31 characters and a NUL. This patch updates alloc_defdata() to match
    reset_policy() (ie a shorter string). I'm not very familiar with this
    code so please review carefully.

    Signed-off-by: Dan Carpenter
    Acked-by: Jamal Hadi Salim
    Signed-off-by: David S. Miller

    Dan Carpenter
     

18 May, 2010

1 commit

  • 6ff9c3644   net sched: printk message severity ... Browse Code »

    The previous patch encourage me to go look at all the messages in
    the network scheduler and fix them. Many messages were missing
    any severity level. Some serious ones that should never happen
    were turned into WARN(), and the random noise messages that were
    handled changed to pr_debug().

    Signed-off-by: Stephen Hemminger
    Signed-off-by: David S. Miller

    stephen hemminger
     

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
     

26 Nov, 2008

1 commit

20 Jul, 2008

1 commit

06 May, 2008

1 commit

05 May, 2008

1 commit

18 Apr, 2008

1 commit

29 Jan, 2008

3 commits

11 Jul, 2007

1 commit

26 Apr, 2007

2 commits

  • dc5fc579b   [NETLINK]: Use nlmsg_trim() where appropriate ... Browse Code »

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

    Arnaldo Carvalho de Melo
     
  • 27a884dc3   [SK_BUFF]: Convert skb->tail to sk_buff_data_t ... Browse Code »

    So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes
    on 64bit architectures, allowing us to combine the 4 bytes hole left by the
    layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4
    64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN...
    :-)

    Many calculations that previously required that skb->{transport,network,
    mac}_header be first converted to a pointer now can be done directly, being
    meaningful as offsets or pointers.

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

    Arnaldo Carvalho de Melo
     

11 Feb, 2007

1 commit

03 Dec, 2006

1 commit

23 Sep, 2006

2 commits

  • 28a7b327b   [PKT_SCHED] act_simple.c: make struct simp_hash_info static ... Browse Code »

    This patch makes the needlessly global struct simp_hash_info static.

    Signed-off-by: Adrian Bunk
    Signed-off-by: David S. Miller

    Adrian Bunk
     
  • e9ce1cd3c   [PKT_SCHED]: Kill pkt_act.h inlining. ... Browse Code »

    This was simply making templates of functions and mostly causing a lot
    of code duplication in the classifier action modules.

    We solve this more cleanly by having a common "struct tcf_common" that
    hash worker functions contained once in act_api.c can work with.

    Callers work with real action objects that have the common struct
    plus their module specific struct members. You go from a common
    object to the higher level one using a "to_foo()" macro which makes
    use of container_of() to do the dirty work.

    This also kills off act_generic.h which was only used by act_simple.c
    and keeping it around was more work than the it's value.

    Signed-off-by: David S. Miller

    David S. Miller
     

01 Jul, 2006

1 commit

10 Jan, 2006

1 commit