failsafe mechanism to HPET clock calibration
Provide a failsafe mechanism to avoid kernel spinning forever at read_hpet_tsc during early kernel bootup. This failsafe mechanism was originally introduced in commit 2f7a2a79 , but looks like the hpet split from time.c lost it again. This reintroduces the failsafe mechanism Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Cc: Jack Steiner <steiner@sgi.com> Cc: john stultz <johnstul@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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ff99e402
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