fix jiffy calculations in calibrate_delay_direct to handle overflow
authorTim Deegan <Tim.Deegan@citrix.com>
Thu, 10 Feb 2011 08:50:41 +0000 (08:50 +0000)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 10 Feb 2011 19:00:09 +0000 (11:00 -0800)
commit70a062286b9dfcbd24d2e11601aecfead5cf709a
tree126a1e3f9561a3cb4159714c96db1ddd4171756d
parent6148a47ac3872092d4bc4888838bec6dff16654d
fix jiffy calculations in calibrate_delay_direct to handle overflow

Fixes a hang when booting as dom0 under Xen, when jiffies can be
quite large by the time the kernel init gets this far.

Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
[jbeulich@novell.com: !time_after() -> time_before_eq() as suggested by Jiri Slaby]
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
init/calibrate.c