Add the mlockall() and munlockall() system calls.

 - All those diffs to syscalls.master for each architecture *are*
   necessary. This needed clarification; the stub code generation for
   mlockall() was disabled, which would prevent applications from
   linking to this API (suggested by mux)
 - Giant has been quoshed. It is no longer held by the code, as
   the required locking has been pushed down within vm_map.c.
 - Callers must specify VM_MAP_WIRE_HOLESOK or VM_MAP_WIRE_NOHOLES
   to express their intention explicitly.
 - Inspected at the vmstat, top and vm pager sysctl stats level.
   Paging-in activity is occurring correctly, using a test harness.
 - The RES size for a process may appear to be greater than its SIZE.
   This is believed to be due to mappings of the same shared library
   page being wired twice. Further exploration is needed.
 - Believed to back out of allocations and locks correctly
   (tested with WITNESS, MUTEX_PROFILING, INVARIANTS and DIAGNOSTIC).

PR:             kern/43426, standards/54223
Reviewed by:    jake, alc
Approved by:    jake (mentor)
MFC after:	2 weeks

7 files changed, 9 insertions, 8 deletions

diff --git a/lib/libc/alpha/sys/Makefile.inc b/lib/libc/alpha/sys/Makefile.inc
index 4039813..d0b21ed 100644
--- a/lib/libc/alpha/sys/Makefile.inc
+++ b/lib/libc/alpha/sys/Makefile.inc
@@ -5,7 +5,7 @@ MDASM+=	Ovfork.S brk.S cerror.S exect.S fork.S pipe.S ptrace.S \
 
 # Don't generate default code for these syscalls:
 NOASM=	break.o exit.o ftruncate.o getdomainname.o getlogin.o \
-	lseek.o mlockall.o mmap.o munlockall.o openbsd_poll.o pread.o \
+	lseek.o mmap.o openbsd_poll.o pread.o \
 	pwrite.o setdomainname.o sstk.o truncate.o uname.o vfork.o yield.o
 
 PSEUDO=	_getlogin.o _exit.o
diff --git a/lib/libc/amd64/sys/Makefile.inc b/lib/libc/amd64/sys/Makefile.inc
index adfa8485..897ed4f 100644
--- a/lib/libc/amd64/sys/Makefile.inc
+++ b/lib/libc/amd64/sys/Makefile.inc
@@ -6,7 +6,7 @@ MDASM=	vfork.S brk.S cerror.S exect.S pipe.S ptrace.S reboot.S sbrk.S \
 
 # Don't generate default code for these syscalls:
 NOASM=	break.o exit.o ftruncate.o getdomainname.o getlogin.o \
-	lseek.o mlockall.o mmap.o munlockall.o openbsd_poll.o pread.o \
+	lseek.o mmap.o openbsd_poll.o pread.o \
 	pwrite.o setdomainname.o sstk.o truncate.o uname.o vfork.o yield.o
 
 PSEUDO=	_getlogin.o _exit.o
diff --git a/lib/libc/i386/sys/Makefile.inc b/lib/libc/i386/sys/Makefile.inc
index d928ea9..ad76609 100644
--- a/lib/libc/i386/sys/Makefile.inc
+++ b/lib/libc/i386/sys/Makefile.inc
@@ -9,7 +9,7 @@ MDASM=	Ovfork.S brk.S cerror.S exect.S pipe.S ptrace.S reboot.S sbrk.S \
 
 # Don't generate default code for these syscalls:
 NOASM=	break.o exit.o ftruncate.o getdomainname.o getlogin.o \
-	lseek.o mlockall.o mmap.o munlockall.o openbsd_poll.o pread.o \
+	lseek.o mmap.o openbsd_poll.o pread.o \
 	pwrite.o setdomainname.o sstk.o truncate.o uname.o vfork.o yield.o
 
 PSEUDO=	_getlogin.o _exit.o
diff --git a/lib/libc/ia64/sys/Makefile.inc b/lib/libc/ia64/sys/Makefile.inc
index 6306763..dacd2f9 100644
--- a/lib/libc/ia64/sys/Makefile.inc
+++ b/lib/libc/ia64/sys/Makefile.inc
@@ -5,7 +5,7 @@ MDASM+=	Ovfork.S brk.S cerror.S exect.S fork.S getcontext.S pipe.S ptrace.S \
 
 # Don't generate default code for these syscalls:
 NOASM=	break.o exit.o ftruncate.o getdomainname.o getlogin.o \
-	lseek.o mlockall.o mmap.o munlockall.o openbsd_poll.o pread.o \
+	lseek.o mmap.o openbsd_poll.o pread.o \
 	pwrite.o setdomainname.o sstk.o truncate.o uname.o vfork.o yield.o
 
 PSEUDO=	_getlogin.o _exit.o
diff --git a/lib/libc/powerpc/sys/Makefile.inc b/lib/libc/powerpc/sys/Makefile.inc
index 3718c1a..84579ae 100644
--- a/lib/libc/powerpc/sys/Makefile.inc
+++ b/lib/libc/powerpc/sys/Makefile.inc
@@ -4,7 +4,7 @@ MDASM+=	brk.S cerror.S exect.S pipe.S ptrace.S sbrk.S setlogin.S
 
 # Don't generate default code for these syscalls:
 NOASM=	break.o exit.o ftruncate.o getdomainname.o getlogin.o \
-	lseek.o mlockall.o mmap.o munlockall.o openbsd_poll.o pread.o \
+	lseek.o mmap.o openbsd_poll.o pread.o \
 	pwrite.o setdomainname.o sstk.o truncate.o uname.o yield.o
 
 PSEUDO=	_getlogin.o _exit.o
diff --git a/lib/libc/sparc64/sys/Makefile.inc b/lib/libc/sparc64/sys/Makefile.inc
index 67d9acd..f677df1 100644
--- a/lib/libc/sparc64/sys/Makefile.inc
+++ b/lib/libc/sparc64/sys/Makefile.inc
@@ -16,7 +16,7 @@ MDASM+=	brk.S cerror.S exect.S pipe.S ptrace.S sbrk.S setlogin.S sigaction.S
 
 # Don't generate default code for these syscalls:
 NOASM=	break.o exit.o ftruncate.o getdomainname.o getlogin.o \
-	lseek.o mlockall.o mmap.o munlockall.o openbsd_poll.o pread.o \
+	lseek.o mmap.o openbsd_poll.o pread.o \
 	pwrite.o setdomainname.o sstk.o truncate.o uname.o yield.o
 
 PSEUDO=	_getlogin.o _exit.o
diff --git a/lib/libc/sys/Makefile.inc b/lib/libc/sys/Makefile.inc
index ae536d5..d66bd7f 100644
--- a/lib/libc/sys/Makefile.inc
+++ b/lib/libc/sys/Makefile.inc
@@ -69,8 +69,8 @@ MAN+=	_exit.2 accept.2 access.2 acct.2 adjtime.2 \
 	kldfind.2 kldfirstmod.2 kldload.2 kldnext.2 kldstat.2 kldsym.2 \
 	kldunload.2 kqueue.2 kse.2 ktrace.2 link.2 lio_listio.2 listen.2 \
 	lseek.2 \
-	madvise.2 mincore.2 minherit.2 mkdir.2 mkfifo.2 mknod.2 mlock.2 mmap.2 \
-	modfind.2 modnext.2 modstat.2 mount.2 \
+	madvise.2 mincore.2 minherit.2 mkdir.2 mkfifo.2 mknod.2 mlock.2 \
+	mlockall.2 mmap.2 modfind.2 modnext.2 modstat.2 mount.2 \
 	mprotect.2 msync.2 munmap.2 nanosleep.2 ntp_adjtime.2 ntp_gettime.2 \
 	nfssvc.2 open.2 pathconf.2 pipe.2 poll.2 profil.2 ptrace.2 quotactl.2 \
 	read.2 readlink.2 reboot.2 recv.2 rename.2 revoke.2 rfork.2 rmdir.2 \
@@ -121,6 +121,7 @@ MLINKS+=kse.2 kse_create.2 kse.2 kse_exit.2 kse.2 kse_release.2 \
 	kse.2 kse_wakeup.2 kse.2 kse_thr_interrupt.2
 MLINKS+=madvise.2 posix_madvise.2
 MLINKS+=mlock.2 munlock.2
+MLINKS+=mlockall.2 munlockall.2
 MLINKS+=modnext.2 modfnext.2
 MLINKS+=mount.2 unmount.2
 MLINKS+=pathconf.2 fpathconf.2