upcall: some modifications to reduce work under lock

1. Reduced the number of times we call time(). This may affect accuracy
of access time and so on - please review carefully. I think the resolution is OK'ish.
2. Removed dead code.
3. Changed from CALLOC() to MALLOC() where it made sense.
4. Moved some bits of work outside of a lock.

Compile-tested only!
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>

Change-Id: I9fb8ca5d79b0e9126c1eb07e1a1ab5dbd8bf3f79

0 files changed, 0 insertions, 0 deletions