diff options
| -rw-r--r-- | share/man/man9/spl.9 | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/share/man/man9/spl.9 b/share/man/man9/spl.9 index 90ed44aaebe..81a92196789 100644 --- a/share/man/man9/spl.9 +++ b/share/man/man9/spl.9 @@ -1,4 +1,4 @@ -.\" $OpenBSD: spl.9,v 1.6 2000/10/25 16:23:26 aaron Exp $ +.\" $OpenBSD: spl.9,v 1.7 2000/11/09 01:23:10 aaron Exp $ .\" $NetBSD: spl.9,v 1.1 1997/03/11 06:15:05 mikel Exp $ .\" .\" Copyright (c) 1997 Michael Long. @@ -70,10 +70,13 @@ .Fn splx "int s" .Sh DESCRIPTION These functions raise and lower the system priority level. -They are used by kernel code running at any given priority level to -block higher-priority interrupts, so that it can safely access -variables or data structures which are used by kernel code that runs -at a higher priority level. +They are used by kernel code to block interrupts with priority less +than or equal to the named level (i.e., +.Fn spltty +blocks interrupts of priority less than or equal to +.Dv IPL_TTY ) . +The code may then safely access variables and data structures which +are used by kernel code that runs at an equal or lower priority level. .Pp A .Nm |