uml: track and make up lost ticks
commitfe2cc53ee013a4d4d0317d418e7019fe6533a5a8
authorJeff Dike <jdike@addtoit.com>
Mon, 12 May 2008 21:02:00 +0000 (12 14:02 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 13 May 2008 15:02:22 +0000 (13 08:02 -0700)
tree7a173e2703c638b8eab4a2a6762c256114acec60
parent3d88958e01e71bb14a367db75f12f7a59c068f02
uml: track and make up lost ticks

Alarm delivery could be noticably late in the !CONFIG_NOHZ case because lost
ticks weren't being taken into account.  This is now treated more carefully,
with the time between ticks being calculated and the appropriate number of
ticks delivered to the timekeeping system.

Cc: Nix <nix@esperi.org.uk>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/um/include/process.h
arch/um/os-Linux/signal.c
arch/um/os-Linux/time.c