[SCM] systemtap: system-wide probe/trace tool branch, pr7043, updated. release-0.9.7-152-g4322935

[dsmith at sourceware dot org]

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The branch, pr7043 has been updated
       via  43229357282fd51eb1a3c7742932068873c27270 (commit)
       via  b56f0c8b802fbdf93f40b4a233095ea970cfed2b (commit)
       via  0bd709c3a8ff717f3ad78fdc079ce0468bec3ffa (commit)
      from  af274e5bd4593fa79c0489e0b6105f4bd23310c8 (commit)

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- Log -----------------------------------------------------------------
commit 43229357282fd51eb1a3c7742932068873c27270
Author: David Smith <dsmith@redhat.com>
Date:   Tue Jun 2 11:21:24 2009 -0500

    Fixed cut-and-paste error.
    * runtime/task_finder.c (__stp_call_mmap_callbacks_for_task): Fixed
      cut-and-paste error.

commit b56f0c8b802fbdf93f40b4a233095ea970cfed2b
Author: David Smith <dsmith@redhat.com>
Date:   Mon Jun 1 12:20:08 2009 -0500

    Avoid holding semaphore while making mmap callbacks.
    * runtime/task_finder.c (__stp_call_mmap_callbacks_for_task): Grabs the
      'mmap_sem' sempaphore. Caches vma information, releases the semaphore,
      then makes mmap callbacks.
      (__stp_utrace_task_finder_target_quiesce): Calls
      __stp_call_mmap_callbacks_for_task() to make mmap callbacks on initial
      attach to a task.

commit 0bd709c3a8ff717f3ad78fdc079ce0468bec3ffa
Author: David Smith <dsmith@redhat.com>
Date:   Thu May 28 10:58:17 2009 -0500

    Avoid 1 case of holding a semaphore while mmap callbacks are being made.
    * runtime/task_finder.c (__stp_call_mmap_callbacks_with_addr): Renamed
      from __stp_call_mmap_callbacks_with_vma().  Also added some code from
      __stp_utrace_task_finder_target_syscall_exit() that locks the 'mmap_sem'
      semaphore.  This avoids holding the semaphore while the mmap callbacks
      are made.
      (__stp_utrace_task_finder_target_syscall_exit): Just calls
      __stp_call_mmap_callbacks_with_addr() in the mmap case.

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

Summary of changes:
 runtime/task_finder.c |  314 ++++++++++++++++++++++++++++++++-----------------
 1 files changed, 205 insertions(+), 109 deletions(-)


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