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Allow 64-bit timestamps to be set on 64-bit kernels 

ZFS and 64-bit linux are perfectly capable of dealing with 64-bit
timestamps, but ZFS deliberately prevents setting them.  Adjust
the SPL such that TIMESPEC_OVERFLOW will not always assume 32-bit
values and instead use the correct values for your kernel build.
This effectively allows 64-bit timestamps on 64-bit systems.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes ZFS issue #487
This commit is contained in:
Chris Dunlop 2011-12-06 15:29:58 +11:00 committed by Brian Behlendorf
parent e05bec805b
commit 791dc876eb
1 changed files with 8 additions and 3 deletions
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11
include/sys/time.h
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@ -34,8 +34,13 @@
#include <sys/types.h>
#include <sys/timer.h>
#define TIME32_MAX INT32_MAX
#define TIME32_MIN INT32_MIN
#if defined(CONFIG_64BIT)
#define TIME_MAX INT64_MAX
#define TIME_MIN INT64_MIN
#else
#define TIME_MAX INT32_MAX
#define TIME_MIN INT32_MIN
#endif
#define SEC 1
#define MILLISEC 1000
@ -83,6 +88,6 @@ gethrestime_sec(void)
}
#define TIMESPEC_OVERFLOW(ts) \
((ts)->tv_sec < TIME32_MIN || (ts)->tv_sec > TIME32_MAX)
((ts)->tv_sec < TIME_MIN || (ts)->tv_sec > TIME_MAX)
#endif /* _SPL_TIME_H */