diff options
Diffstat (limited to 'lib/libc/sys')
| -rw-r--r-- | lib/libc/sys/mlockall.2 | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/lib/libc/sys/mlockall.2 b/lib/libc/sys/mlockall.2 index 83100e163e6..9f3ccb8dfa2 100644 --- a/lib/libc/sys/mlockall.2 +++ b/lib/libc/sys/mlockall.2 @@ -1,3 +1,4 @@ +.\" $OpenBSD: mlockall.2,v 1.2 2001/03/11 05:23:18 aaron Exp $ .\" $NetBSD: mlockall.2,v 1.6 2000/06/26 17:00:02 kleink Exp $ .\" .\" Copyright (c) 1999 The NetBSD Foundation, Inc. @@ -42,8 +43,6 @@ .Nm mlockall , .Nm munlockall .Nd lock (unlock) the address space of a process -.Sh LIBRARY -.Lb libc .Sh SYNOPSIS .Fd #include <sys/types.h> .Fd #include <sys/mman.h> @@ -65,17 +64,17 @@ The following flags affect the behavior of Lock all pages currently mapped into the process's address space. .It Dv MCL_FUTURE Lock all pages mapped into the process's address space in the future, -at the time the mapping is established. Note that this may cause -future mappings to fail if those mappings cause resource limits to -be exceeded. +at the time the mapping is established. +Note that this may cause future mappings to fail if those mappings +cause resource limits to be exceeded. .El -.Pp +.Pp Since physical memory is a potentially scarce resource, processes are limited in how much they can lock down. A single process can lock the minimum of a system-wide .Dq wired pages limit and the per-process -.Li RLIMIT_MEMLOCK +.Dv RLIMIT_MEMLOCK resource limit. .Pp The @@ -99,7 +98,7 @@ will fail if: .It Bq Er EINVAL The .Ar flags -argument is zero, or includes unimplemented flags. +argument is zero or includes unimplemented flags. .It Bq Er ENOMEM Locking the indicated range would exceed either the system or per-process limit for locked memory. @@ -107,7 +106,7 @@ limit for locked memory. Some or all of the memory mapped into the process's address space could not be locked when the call was made. .It Bq Er EPERM -The calling process does not have the appropriate privilege to perform +The calling process does not have the appropriate privileges to perform the requested operation. .El .Sh SEE ALSO @@ -135,5 +134,5 @@ The per-process resource limit is a limit on the amount of virtual memory locked, while the system-wide limit is for the number of locked physical pages. Hence a process with two distinct locked mappings of the same physical page -counts as 2 pages against the per-process limit and as only a single page +counts as 2 pages against the per-process limit and only as a single page in the system limit. |