[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-354-g93ee09d

[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-354-g93ee09d

[dsmith]

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- Log -----------------------------------------------------------------
commit 93ee09d508e10d054465c63553b30539d70e0c4b
Author: David Smith <dsmith@redhat.com>
Date:   Thu Oct 27 10:24:45 2011 -0500

    More PR13083 fixes to avoid sleeping in the task_finder.
    
    * runtime/task_finder.c (__stp_get_mm_path): Call down_read_trylock()
      instead of down_read() to avoid the possibility of sleeping.
      (stap_start_task_finder): Call task_lock() to make sure a task's mm
      doesn't go away while we're looking at it.

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

Summary of changes:
 runtime/task_finder.c |   26 ++++++++++++++++++--------
 1 files changed, 18 insertions(+), 8 deletions(-)


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