manpage bits for uvm_pglistalloc() changes.

Couple of tweaks from jmc@

1 files changed, 19 insertions, 6 deletions

diff --git a/share/man/man9/uvm.9 b/share/man/man9/uvm.9
index 52dc594a744..51ac34a2e25 100644
--- a/share/man/man9/uvm.9
+++ b/share/man/man9/uvm.9
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: uvm.9,v 1.38 2009/03/19 20:09:00 jmc Exp $
+.\"	$OpenBSD: uvm.9,v 1.39 2009/04/14 17:07:08 oga Exp $
 .\"	$NetBSD: uvm.9,v 1.14 2000/06/29 06:08:44 mrg Exp $
 .\"
 .\" Copyright (c) 1998 Matthew R. Green
@@ -30,7 +30,7 @@
 .\" XXX this manual sets nS to 1 or 0 in the description, to obtain
 .\" synopsis-like function prototypes.  any better way?
 .\"
-.Dd $Mdocdate: March 19 2009 $
+.Dd $Mdocdate: April 14 2009 $
 .Dt UVM 9
 .Os
 .Sh NAME
@@ -620,7 +620,7 @@ on the map before unlocking the map.
 .Ft void
 .Fn uvm_pagefree "struct vm_page *pg"
 .Ft int
-.Fn uvm_pglistalloc "psize_t size" "paddr_t low" "paddr_t high" "paddr_t alignment" "paddr_t boundary" "struct pglist *rlist" "int nsegs" "int waitok"
+.Fn uvm_pglistalloc "psize_t size" "paddr_t low" "paddr_t high" "paddr_t alignment" "paddr_t boundary" "struct pglist *rlist" "int nsegs" "int flags"
 .Ft void
 .Fn uvm_pglistfree "struct pglist *list"
 .Ft void
@@ -699,12 +699,25 @@ is non-zero, no segment of the list may cross this power-of-two
 boundary, relative to zero.
 .Fa nsegs
 is the maximum number of physically contigous segments.
-The
-.Fa waitok
-argument is currently ignored.
 The allocated memory is returned in the
 .Fa rlist
 list.
+The
+.Fa flags
+can be any of:
+.Bd -literal
+#define UVM_PLA_WAITOK		0x0001	/* may sleep */
+#define UVM_PLA_NOWAIT		0x0002	/* can't sleep */
+.Ed
+.Pp
+The
+.Dv UVM_PLA_WAITOK
+flag means that the function may sleep while trying to allocate the list of
+pages (this is currently ignored).
+Conversely, the
+.Dv UVM_PLA_NOWAIT
+flag signifies that the function may not sleep while allocating.
+It is an error not to provide one of the above flags.
 .Pp
 The
 .Fn uvm_pglistfree