diff options
author | Owain Ainsworth <oga@cvs.openbsd.org> | 2009-04-14 17:07:09 +0000 |
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committer | Owain Ainsworth <oga@cvs.openbsd.org> | 2009-04-14 17:07:09 +0000 |
commit | a4bc840dcf978b5e5bef7142406a29f963e43080 (patch) | |
tree | bcf145345a4275b850daa2db8bb2e682578e317b /share/man | |
parent | eca59200c465e76daa19a24df0611c6dc23f3942 (diff) |
manpage bits for uvm_pglistalloc() changes.
Couple of tweaks from jmc@
Diffstat (limited to 'share/man')
-rw-r--r-- | share/man/man9/uvm.9 | 25 |
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 |