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Document that uma_zfree_pcpu() allows NULL now

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While here also document that for counter_u64_free().

Reviewed by:	rpokala@
MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29215
This commit is contained in:
Kristof Provost 2021-03-11 09:32:01 +01:00
parent b8f7267d49
commit 51dc8e7f68
2 changed files with 22 additions and 3 deletions
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7
share/man/man9/counter.9
View File

@ -25,7 +25,7 @@
.\" .\"
.\" $FreeBSD$ .\" $FreeBSD$
.\" .\"
.Dd March 6, 2020 .Dd March 11, 2021
.Dt COUNTER 9 .Dt COUNTER 9
.Os .Os
.Sh NAME .Sh NAME
@ -98,10 +98,13 @@ or
.Va M_WAITOK . .Va M_WAITOK .
If If
.Va M_NOWAIT .Va M_NOWAIT
is specified the operation may fail. is specified the operation may fail and return
.Dv NULL .
.It Fn counter_u64_free c .It Fn counter_u64_free c
Free the previously allocated counter Free the previously allocated counter
.Fa c . .Fa c .
It is safe to pass
.Dv NULL .
.It Fn counter_u64_add c v .It Fn counter_u64_add c v
Add Add
.Fa v .Fa v

18
share/man/man9/zone.9
View File

@ -25,7 +25,7 @@
.\" .\"
.\" $FreeBSD$ .\" $FreeBSD$
.\" .\"
.Dd August 20, 2020 .Dd March 11, 2021
.Dt UMA 9 .Dt UMA 9
.Os .Os
.Sh NAME .Sh NAME
@ -385,6 +385,22 @@ specify an argument for the
and and
.Dv dtor .Dv dtor
functions of the zone, respectively. functions of the zone, respectively.
The variants
.Fn uma_zalloc_pcpu
and
.Fn uma_zfree_pcpu
allocate and free
.Va mp_ncpu
shadow copies as described for
.Dv UMA_ZONE_PCPU .
If
.Fa item
is
.Dv NULL ,
then
.Fn uma_zfree_pcpu
does nothing.
.Pp
The The
.Fn uma_zalloc_domain .Fn uma_zalloc_domain
function allows callers to specify a fixed function allows callers to specify a fixed