sh: switch to saved_sigmask-based sigsuspend()/rt_sigsuspend()
authorAl Viro <viro@zeniv.linux.org.uk>
Sun, 22 Apr 2012 05:16:34 +0000 (01:16 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Tue, 22 May 2012 03:58:06 +0000 (23:58 -0400)
Complete the move of sh64 to it, trim the crap from prototypes,
tidy up a bit.  Infrastructure in do_signal() had already been
there, in signal_64 as well as in signal_32 (where it was already
used).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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