Doug / smarc-fsl-linux-kernel

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
     

19 Nov, 2009

1 commit

12 Nov, 2009

1 commit

14 Apr, 2009

3 commits

  • a7665b0a3   sgi-xpc: clean up numerous globals ... Browse Code »

    Introduce xpc_arch_ops and eliminate numerous individual global definitions.

    Signed-off-by: Robin Holt
    Cc: Dean Nelson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Robin Holt
     
  • efdd06ed1   sgi-xpc: implement opencomplete messaging ... Browse Code »

    sgi-xpc has a window of failure where an open message can be sent and a
    subsequent data message can get lost. We have added a new message
    (opencomplete) which closes that window.

    Signed-off-by: Robin Holt
    Signed-off-by: Dean Nelson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Robin Holt
     
  • a374c57b0   sgi-xpc: prevent false heartbeat failures ... Browse Code »

    The heartbeat timeout functionality in sgi-xpc is currently not trained to
    the connection time. If a connection is made and the code is in the last
    polling window prior to doing a timeout, the next polling window will see
    the heartbeat as unchanged and initiate a no-heartbeat disconnect.

    Signed-off-by: Robin Holt
    Signed-off-by: Dean Nelson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Robin Holt
     

03 Apr, 2009

1 commit

12 Jan, 2009

1 commit

  • f7df8ed16   cpumask: convert misc driver functions ... Browse Code »

    Impact: use new cpumask API.

    Convert misc driver functions to use struct cpumask.

    To Do:
    - Convert iucv_buffer_cpumask to cpumask_var_t.

    Signed-off-by: Rusty Russell
    Signed-off-by: Mike Travis
    Acked-by: Dean Nelson
    Cc: Robert Richter
    Cc: oprofile-list@lists.sf.net
    Cc: Jeremy Fitzhardinge
    Cc: Chris Wright
    Cc: virtualization@lists.osdl.org
    Cc: xen-devel@lists.xensource.com
    Cc: Ursula Braun
    Cc: linux390@de.ibm.com
    Cc: linux-s390@vger.kernel.org

    Rusty Russell
     

07 Jan, 2009

1 commit

31 Oct, 2008

1 commit

  • b7f7b0747   sgi-xp: only build for ia64-sn2 when CONFIG_IA64_GENERIC specified ... Browse Code »

    For the time being build for ia64-sn2 alone when CONFIG_IA64_GENERIC is
    specified.

    This eliminates a dependency of the XP/XPC drivers on having the GRU
    driver insmod'd in order to insmod them, when running on an ia64-sn2
    system.

    On such a system the GRU driver serves no useful purpose.

    Signed-off-by: Dean Nelson
    Cc: "Luck, Tony"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dean Nelson
     

31 Jul, 2008

19 commits

26 Jul, 2008

1 commit

19 Jul, 2008

1 commit

13 May, 2008

2 commits

  • 64d032ba4   drivers/misc/sgi-xp: replace partid_t with a short ... Browse Code »

    In preparation for supporting greater than 64 partitions replace partid_t by
    short in drivers/misc/sgi-xp.

    Signed-off-by: Dean Nelson
    Acked-by: Robin Holt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dean Nelson
     
  • 65c17b801   drivers/misc/sgi-xp: clean up return values ... Browse Code »

    Make XP return values more generic to XP and not so tied to XPC by changing
    enum xpc_retval to xp_retval, along with changing return value prefixes from
    xpc to xp. Also, cleanup a comment block that referenced some of these return
    values as well as the handling of BTE related return values.

    Signed-off-by: Dean Nelson
    Acked-by: Robin Holt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dean Nelson
     

23 Apr, 2008

3 commits