[PATCH 4/4] xfsdump: convert to the POSIX signal API

[Christoph Hellwig]

On Fri, Jul 29, 2011 at 03:40:11PM -0500, Bill Kendall wrote:
> Convert from using the System V signal API to the POSIX API. For
> xfsdump, this mostly means replacing sigrelse/sighold with
> sigprocmask, sigset with sigaction, and sigpause with sigsuspend.
> 
> childmain() and cldmgr_entry() are thread entry points. By the time
> they are spawned the main thread will have already set its signal
> mask, so no need to setup signals in these threads as the mask is
> inherited.