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Add note about PZERO being obsolete, because so much code uses it.

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Feel free to improve the verbage, since this was a compromise between
conflicting feedback I got on my original version.
This commit is contained in:
Warner Losh 2008-04-04 16:59:58 +00:00
parent 00ca09449d
commit 043b496b8d
1 changed files with 5 additions and 1 deletions
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6
share/man/man9/sleep.9
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@ -25,7 +25,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd February 27, 2007
.Dd April 4, 2008
.Os
.Dt SLEEP 9
.Sh NAME
@ -93,6 +93,10 @@ then the thread will be made
runnable with the specified
.Fa priority
when it resumes.
.Dv PZERO
should never be used, as it is for compatibility only.
A new priority of 0 means to use the thread's current priority when
it is made runnable again.
If
.Fa priority
includes the