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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.2-121-g26f62be


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The branch, master has been updated
       via  26f62be4d9b2cfc975a07b96b988da2a62c30b71 (commit)
      from  89bc1a6a568a40ea18f7b3325a2dbd96b0da400c (commit)

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- Log -----------------------------------------------------------------
commit 26f62be4d9b2cfc975a07b96b988da2a62c30b71
Author: Frank Ch. Eigler <fche@elastic.org>
Date:   Thu May 6 13:04:11 2010 -0400

    PR11575: lengthen TRYLOCKDELAY
    
    Change default timeout for global variable locks to apprx. 1 ms,
    in 10us chunks.  TRYLOCKDELAY now measures microseconds.
    
    * translate.cxx (translate_pass): Change TRYLOCKDELAY and
      MAXTRYLOCK default values.
    * runtime/probe_lock.h (stp_lock_probe): Use udelay() rather than
      ndelay().
    * runtime/time.c (STP_TIMELOCK*): New macros just for time seqlock
      timeout purposes.  Expected contention is negligible here.

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

Summary of changes:
 runtime/probe_lock.h |    6 +++---
 runtime/time.c       |   21 ++++++++++++++++-----
 translate.cxx        |    8 ++++----
 3 files changed, 23 insertions(+), 12 deletions(-)


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