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From: John Baldwin <jhb@FreeBSD.org>
Date: Wed, 19 Jul 2006 19:01:10 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
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Subject: cvs commit: src/sys/compat/svr4 svr4_misc.c syscalls.master
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jhb         2006-07-19 19:01:10 UTC

  FreeBSD src repository

  Modified files:
    sys/compat/svr4      svr4_misc.c syscalls.master 
  Log:
  Make svr4_sys_waitsys() a lot less ugly and mark it MPSAFE.
  - If the WNOWAIT flag isn't specified and either of WEXITED or WTRAPPED is
    set, then just call kern_wait() and let it do all the work.  This means
    that this function no longer has to duplicate the work to teardown
    zombies that is done in kern_wait().  Instead, if the above conditions
    aren't true, then it uses a simpler loop to implement WNOWAIT and/or
    tracing for only stopped or continued processes.  This function still
    has to duplicate code from kern_wait() for the latter two cases, but
    those are much simpler.
  - Sync the code to handle the WCONTINUED and WSTOPPED cases with the
    equivalent code in kern_wait().
  - Fix several places that would return with the proctree lock still held.
  - Lock the current process to prevent lost wakeup races when blocking.
  
  Revision  Changes    Path
  1.87      +148 -154  src/sys/compat/svr4/svr4_misc.c
  1.24      +1 -1      src/sys/compat/svr4/syscalls.master