[PATCH] Add 64bit jiffies compares (for use with get_jiffies_64)

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The current time_before/time_after macros will fail typechecks
when passed u64 values (as returned by get_jiffies_64()). On 64bit
systems, this will just result in a warning about mismatching types
without explicit casts, but since unsigned long and u64
(unsigned long long) are of same size, it will still work.
On 32bit systems, a long is 32bits, so the value from get_jiffies_64()
will be truncated by the cast and thus lose all the precision gained by
64bit jiffies.

Signed-off-by: Dmitriy Zavin <dmitriyz@google.com>
Signed-off-by: Andi Kleen <ak@suse.de>

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Dmitriy Zavin 2006-09-26 10:52:42 +02:00 • committed by Andi Kleen

parent b89ebd0b0a

commit 3b17167283

1 changed files with 15 additions and 0 deletions

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include/linux/jiffies.h

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