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Document RO_RTFREE() macro.

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This commit is contained in:
Gleb Smirnoff 2012-07-04 07:42:12 +00:00
parent bf9840512a
commit d8115a8690
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=238093
1 changed files with 10 additions and 1 deletions
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11
share/man/man9/rtalloc.9
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@ -28,7 +28,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd December 14, 2011
.Dd July 4, 2012
.Dt RTALLOC 9
.Os
.Sh NAME
@ -52,6 +52,7 @@
.Fn RT_UNLOCK "struct rt_entry *rt"
.Fn RT_ADDREF "struct rt_entry *rt"
.Fn RT_REMREF "struct rt_entry *rt"
.Fn RO_RTFREE "struct route *ro"
.Ft void
.Fn rtfree "struct rt_entry *rt"
.Ft "struct rtentry *"
@ -203,6 +204,14 @@ Its usage is contrary to
.Fn RT_ADDREF .
.Pp
The
.Fn RO_RTFREE
macro is used to free route entry that is referenced by struct route.
At certain circumstances the latter may not hold a reference on rtentry,
and
.Fn RO_RTFREE
treats such routes correctly.
.Pp
The
.Fn rtfree
function does the actual free of the routing table entry, and shouldn't
be called directly by facilities, that just perform routing table lookups.