system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-10-15 12:54:27 +00:00
Code Issues Packages Projects Releases Wiki Activity

Document new variant of swapoff(2)

Browse source 
Reviewed by:	brooks
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D33343
This commit is contained in:
Konstantin Belousov 2021-12-08 23:24:31 +02:00
parent 5346570276
commit 9f0fea5d03
1 changed files with 3 additions and 23 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
lib/libc/sys/swapon.2
View file

@ -28,7 +28,7 @@
.\" @(#)swapon.2 8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
.Dd December 2, 2021
.Dd December 8, 2021
.Dt SWAPON 2
.Os
.Sh NAME
@ -43,7 +43,7 @@
.Ft int
.Fn swapon "const char *special"
.Ft int
.Fn swapoff "const char *special"
.Fn swapoff "const char *special" "u_int flags"
.Sh DESCRIPTION
The
.Fn swapon
@ -68,27 +68,7 @@ is made available for other purposes.
.Pp
The
.Fa special
argument points to either the string that names the special device
used for swapping or the following structure
.Bd -literal
struct swapoff_new_args {
const char *name_old_syscall;
const char *name;
u_int flags;
};
.Ed
that extends swapoff's interface to include optional flags.
The
.Va name_old_syscall
member must be initialized to
.Dv NULL
for the system to recognize the extended interface.
It is recommended that the whole structure be zeroed for future
compatibility, due to padding.
.Pp
The
.Va name
string is the special device name, same as legacy syscall argument.
argument points to the name of the device or file used for swapping.
.The
.Va flags
argument takes the following flags: