[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.2-389-g8af0ed1

[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.2-389-g8af0ed1

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- Log -----------------------------------------------------------------
commit 8af0ed12bb050d38cb655eac6ca19efb9ff959d3
Author: Przemyslaw Pawelczyk <przemyslaw@pawelczyk.it>
Date:   Thu Jul 1 11:30:17 2010 +0200

    Do not use relay_file_operations directly.
    
    Reference counting is important to avoid removing the module while the
    file exposing relay channel is being used. SystemTap alone does not need
    it, but malicious user may block reloading the module by opening such
    file and stap user won't notice it during unloading.
    
    relay_file_operations defined and exported in kernel/relay.c is const
    and .owner is obviously not set there, hence it shouldn't be used
    directly by any kernel module.
    
    Add relay_file_operations_w_owner and use it instead of mentioned one to
    fix 'trace' file handling w.r.t. module unloading.
    
    * runtime/transport/relay_v2.c: Add owner to the trace file.

-----------------------------------------------------------------------

Summary of changes:
 runtime/transport/relay_v2.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)


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systemtap: system-wide probe/trace tool