tree 8fc58560ffee1c944ec5e198029d5c2e6f7c0bd3
parent 4ebefe3ec729003443daf153ed6fad1739271283
author Al Viro <viro@zeniv.linux.org.uk> 1337657635 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1338569927 -0400

new helper: restore_saved_sigmask()

first fruits of ..._restore_sigmask() helpers: now we can take
boilerplate "signal didn't have a handler, clear RESTORE_SIGMASK
and restore the blocked mask from ->saved_mask" into a common
helper.  Open-coded instances switched...

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