06 Jan, 2007

1 commit

  • On ia64, the various functions that make up cn_proc.c cause kernel
    unaligned access errors.

    If you are using these, for example, to get notification about all tasks
    forking and exiting, you get multiple unaligned access errors per process.

    Use put_unaligned() in the appropriate palces to fix this.

    Signed-off-by: Erik Jacobson
    Cc: Evgeniy Polyakov
    Cc: "Luck, Tony"
    Cc:
    Cc: "David S. Miller"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Erik Jacobson
     

01 Aug, 2006

1 commit

  • Events sent by Process Events Connector from a 64-bit kernel are not binary
    compatible with a 32-bit userspace program because the "timestamp" field
    (struct timespec) is not arch independent. This affects the fields that
    follow "timestamp" as they will be be off by 8 bytes.

    This is a problem for 32-bit userspace programs running with 64-bit kernels
    on ppc64, s390, x86-64.. any "biarch" system.

    Matt had submitted a different solution to lkml as an RFC earlier. We have
    since switched to a solution recommended by Evgeniy Polyakov.

    This patch fixes the problem by changing the timestamp to be a __u64, which
    stores the number of nanoseconds.

    Tested on a x86_64 system with both 32 bit application and 64 bit
    application and on a i386 system.

    Signed-off-by: Chandra Seetharaman
    Signed-off-by: Matt Helsley
    Cc: Evgeniy Polyakov
    Cc: Guillaume Thouvenin
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Chandra Seetharaman
     

23 Jun, 2006

1 commit

  • Move connector header include to precisely where it's needed.

    Remove unused time.h header file as well. This was leftover from previous
    iterations of the process events patches.

    Signed-off-by: Matt Helsley
    Cc: Guillaume Thouvenin
    Cc: Nguyen Anh Quynh
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Helsley
     

11 Jan, 2006

1 commit

  • Use ktime_get_ts() to take the timestamp instead of getnstimestamp(). This
    patch prepares to remove getnstimestamp() by switching its only user to a
    different function with almost exactly the same code.

    Signed-off-by: Matt Helsley
    Cc: john stultz
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Helsley
     

09 Jan, 2006

1 commit

  • The parameter to put_cpu_var() is unreferenced by the implementation, and
    the compiler doesn't try to comprehend comments, so this wouldn't cause any
    problem, but if bugged me enough to post a fix :-)

    Signed-off-by: David S. Miller
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David S. Miller
     

13 Dec, 2005

1 commit

  • This adds a timestamp field to the events sent via the process event
    connector. The timestamp allows listeners to accurately account the
    duration(s) between a process' events and offers strong means with which
    to determine the order of events with respect to a given task while also
    avoiding the addition of per-task data.

    This alters the size and layout of the event structure and hence would
    break compatibility if process events connector as it stands in 2.6.15-rc2
    were released as a mainline kernel.

    Signed-off-by: Matt Helsley
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Helsley
     

07 Nov, 2005

1 commit

  • This patch adds a connector that reports fork, exec, id change, and exit
    events for all processes to userspace. It replaces the fork_advisor patch
    that ELSA is currently using. Applications that may find these events
    useful include accounting/auditing (e.g. ELSA), system activity monitoring
    (e.g. top), security, and resource management (e.g. CKRM).

    Signed-off-by: Matt Helsley
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Helsley