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| -rw-r--r-- | share/man/man9/vflushbuf.9 | 33 | ||||
| -rw-r--r-- | share/man/man9/vwakeup.9 | 48 |
2 files changed, 81 insertions, 0 deletions
diff --git a/share/man/man9/vflushbuf.9 b/share/man/man9/vflushbuf.9 new file mode 100644 index 00000000000..3fe53688753 --- /dev/null +++ b/share/man/man9/vflushbuf.9 @@ -0,0 +1,33 @@ +.\" $OpenBSD: vflushbuf.9,v 1.1 2004/09/19 23:19:18 jaredy Exp $ +.\" Written by Jared Yanovich +.\" This file belongs to the public domain. +.Dd September 17, 2004 +.Dt VFLUSHBUF 9 +.Os +.Sh NAME +.Nm vflushbuf +.Nd flush dirty vnode buffers to disk +.Sh SYNOPSIS +.Fd #include <sys/param.h> +.Fd #include <sys/vnode.h> +.Ft void +.Fn vflushbuf "struct vnode *vp" "int sync" +.Sh DESCRIPTION +The +.Fn vflushbuf +function flushes all dirty buffers associated with the vnode +.Fa vp +to the disk. +If the +.Fa sync +argument is zero, writes to the disk will be asynchronous and +.Fn vflushbuf +returns immediately; otherwise, writes will be synchronous and all +disk blocks associated with the vnode will have been properly +synchronized with the in-core buffers upon return. +.Sh SEE ALSO +.Xr vinvalbuf 9 , +.Xr vnode 9 +.Sh HISTORY +This document first appeared in +.Ox 3.7 . diff --git a/share/man/man9/vwakeup.9 b/share/man/man9/vwakeup.9 new file mode 100644 index 00000000000..bd9271e5863 --- /dev/null +++ b/share/man/man9/vwakeup.9 @@ -0,0 +1,48 @@ +.\" $OpenBSD: vwakeup.9,v 1.1 2004/09/19 23:19:18 jaredy Exp $ +.\" Written by Jared Yanovich +.\" This file belongs to the public domain. +.Dd September 17, 2004 +.Dt VWAKEUP 9 +.Os +.Sh NAME +.Nm vwakeup +.Nd "update outstanding I/O count and do wakeup on a vnode" +.Sh SYNOPSIS +.Fd #include <sys/param.h> +.Fd #include <sys/vnode.h> +.Ft void +.Fn vwakeup "struct vnode *vp" +.Sh DESCRIPTION +The +.Fn vwakeup +function updates the number of outstanding I/O operations on the target +vnode, stored in its +.Va v_numoutput +field. +If the target vnode has the +.Dv VBIOWAIT +flag set in its +.Va v_bioflag +field and has no outstanding I/O operations remaining, a +.Xr wakeup 9 +is performed as well. +.Pp +The +.Fn vwakeup +function must be called at +.Xr splbio 9 . +.Sh SEE ALSO +.Xr panic 9 , +.Xr splbio 9 , +.Xr vnode 9 , +.Xr vwaitforio 9 , +.Xr wakeup 9 +.Sh CAVEATS +Calling +.Fn vwakeup +more times than the number of outstanding I/O operations will cause the +system to +.Xr panic 9 . +.Sh HISTORY +This document first appeared in +.Ox 3.7 . |