CVS commit: src/sys/kern

["Matthias Drochner" <drochner%netbsd.org@localhost>]

Module Name:    src
Committed By:   drochner
Date:           Wed Jan 26 19:15:13 UTC 2011

Modified Files:
        src/sys/kern: subr_time.c

Log Message:
fix and cleanup for tvtohz():
-assume (KASSERT) that the timeval given is normalized, and remove
 some partial fixup which I don't see what it is good for
 (I'm ready to back that out if someone tells a reason)
-catch overflows due to conversion of time_t (from tv_sec) to
 integer -- this function doesn't do 64-bit arithmetics (which makes
 sense because relative times which don't fit into 32 bits can be
 considered nonsense here), and before a huge tv_sec could lead to
 a zero hz result, violating the caller's assumptions (in particular
 trigger a diagnostic panic in abstimeout2timo())


To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/sys/kern/subr_time.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.