[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-0.9.9-151-g4b9c969

[dsmith at sourceware dot org]

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- Log -----------------------------------------------------------------
commit 4b9c969abcaeb089f7473e08cee420b99c4e287c
Merge: b1e56041f6f6bee89b1d4a7fb2f76d48cb21fbf2 b57ba9b863f0bd99f70d9e4d64c5a11ec75f7317
Author: David Smith <dsmith@redhat.com>
Date:   Wed Aug 19 16:02:26 2009 -0500

    Merge branch 'master' of ssh://sources.redhat.com/git/systemtap

commit b1e56041f6f6bee89b1d4a7fb2f76d48cb21fbf2
Author: David Smith <dsmith@redhat.com>
Date:   Wed Aug 19 16:01:45 2009 -0500

    Updated with latest code.
    * runtime/transport/ring_buffer.c (_stp_ring_buffer_disable_cpu): New
      function.
      (_stp_ring_buffer_enable_cpu): Ditto.
      (_stp_ring_buffer_cpu_disabled): Ditto.
      (_stp_ring_buffer_empty_cpu): Only checks online cpus (instead of all
      possible cpus).
      (_stp_find_next_event): Ditto.
      (_stp_ring_buffer_iterator_increment): Calls
      _stp_ring_buffer_disable_cpu()/_stp_ring_buffer_enable_cpu() around
      ring_buffer_* calls.
      (_stp_ring_buffer_consume): Ditto.
      (_stp_peek_next_event): Ditto.
      (_stp_buffer_iter_finish): New function.
      (_stp_buffer_iter_start): Ditto.
      (_stp_data_read_trace): Uses
      _stp_buffer_iter_start()/_stp_buffer_iter_finish().
      (_stp_data_write_reserve): Checks to see if the cpu is disabled (with
      _stp_ring_buffer_cpu_disabled() before reserving memory.  Uses
      _stp_buffer_iter_start()/_stp_buffer_iter_finish().
      (_stp_transport_data_fs_init): Initializes buffer iterators.

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

Summary of changes:
 runtime/transport/ring_buffer.c |  215 ++++++++++++++++++++++++++-------------
 1 files changed, 145 insertions(+), 70 deletions(-)


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systemtap: system-wide probe/trace tool