mdoc(7) police: markup, grammar, and spelling nits.
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=81278
@ -1,6 +1,6 @@
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.\" Copyright (c) 2001 Chris Costello <chris@FreeBSD.org>
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.\" All rights reserved.
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.\"
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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@ -9,7 +9,7 @@
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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@ -21,9 +21,9 @@
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\"
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.\" $FreeBSD$
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.\"
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.\"
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.Dd July 26, 2001
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.Dt VFS_UNMOUNTALL 9
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.Os
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@ -31,7 +31,7 @@
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.Nm vfs_unmountall
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.Nd unmount all file systems
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.Sh SYNOPSIS
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.Fd #include <sys/mount.h>
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.In sys/mount.h
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.Ft void
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.Fn vfs_unmountall "void"
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.Sh DESCRIPTION
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@ -44,8 +44,8 @@ The
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function moves the given page to the inactive queue as long as it is
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unmanaged and is not wired.
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.Sh SEE ALSO
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.Xr vm_page_unmanage 9 ,
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.Xr vm_page_wire 9
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.Xr vm_page_unmanage 9
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.Sh AUTHORS
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This manual page was written by
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.An Chad David Aq davidc@acns.ab.ca .
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@ -30,10 +30,8 @@
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.Dt VM_PAGE_FLAG 9
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.Os
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.Sh NAME
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.Nm vm_page_flag ,
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.Nm vm_page_clear ,
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.Nm vm_page_flag_set
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.Nd "changes page flags"
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.Nm vm_page_flag_clear , vm_page_flag_set
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.Nd "change page flags"
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.Sh SYNOPSIS
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.In sys/param.h
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.In vm/vm.h
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@ -44,7 +42,7 @@
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.Fn vm_page_flag_set "vm_page_t m" "unsigned short bits"
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.Sh DESCRIPTION
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The
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.Fn vm_page_flag_clear
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.Fn vm_page_flag_clear
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atomically clears the specified bits on the page's flags.
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.Pp
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The
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@ -53,9 +51,9 @@ atomically sets the specified bits on the page's flags.
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.Pp
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The functions arguments are:
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.Bl -tag -width ".Fa bits"
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.It m
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.It Fa m
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The page whose flags are updated.
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.It bits
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.It Fa bits
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The bits that are set or cleared on the page's flags.
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.El
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.Sh AUTHORS
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@ -30,9 +30,9 @@
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.Dt VM_PAGE_FREE 9
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.Os
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.Sh NAME
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.Nm vm_page_free
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.Nm vm_page_free_toq
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.Nm vm_page_free_zero
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.Nm vm_page_free ,
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.Nm vm_page_free_toq ,
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.Nm vm_page_free_zero ,
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.Nm vm_page_try_to_free
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.Nd "free a page"
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.Sh SYNOPSIS
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@ -53,15 +53,15 @@ The
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function moves a page into the free queue, and disassociates it from
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its object.
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If the page is held, wired, already free, or its busy count is not
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zero the system will panic.
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zero, the system will panic.
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If the
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.Dv PG_ZERO
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flag is set on the page is it placed at the end of the free queue;
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flag is set on the page, it is placed at the end of the free queue;
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otherwise, it is placed at the front.
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.Pp
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If the page's object is of type
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.Dv OBJT_VNODE
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and it is the last page associated with the object the underlying
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and it is the last page associated with the object, the underlying
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vnode may be freed.
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.Pp
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The
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@ -70,8 +70,8 @@ and
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.Fn vm_page_free_zero
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functions both call
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.Fn vm_page_free_toq
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to actually free page, but
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.Fn vm_page_free_zero
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to actually free the page, but
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.Fn vm_page_free_zero
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sets the
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.Dv PG_ZERO
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flag and
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@ -84,7 +84,7 @@ flag prior to the call to
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The
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.Fn vm_page_try_to_free
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function verifies that the page is not held, wired, busy or dirty, and
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if so marks the page as busy, drops any protection that may be set on
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if so, marks the page as busy, drops any protection that may be set on
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the page, and frees it.
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.Sh RETURN VALUES
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.Fn vm_page_try_to_free
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@ -32,7 +32,7 @@
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.Sh NAME
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.Nm vm_page_hold ,
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.Nm vm_page_unhold
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.Nd "updates a pages hold count"
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.Nd "update a page's hold count"
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.Sh SYNOPSIS
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.In sys/param.h
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.In vm/vm.h
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@ -65,11 +65,11 @@ should be used.
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.Pp
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.Fn vm_page_unhold
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function reduces the hold count on a page.
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If the hold count is zero it is possible the page will be freed by the
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If the hold count is zero it is possible that the page will be freed by the
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page daemon.
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.Sh SEE ALSO
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.Xr vm_page_unwire 9 ,
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.Xr vm_page_wire 9
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.Xr wm_page_unwire 9
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.Sh AUTHORS
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This manual page was written by
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.An Chad David Aq davidc@acns.ab.ca .
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.Sh NAME
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.Nm vm_page_insert ,
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.Nm vm_page_remove
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.Nd "add and remove pages from an object"
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.Nd "add/remove page from an object"
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.Sh SYNOPSIS
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.In sys/param.h
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.In vm/vm.h
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@ -49,12 +49,12 @@ The page is added to both the VM page hash table and to the
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object's list of pages, but the hardware page tables are not updated.
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In the case of a user page, it will be faulted in when it is
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accessed.
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If the page is a kernel page the caller is expected to
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handle adding the page to the kernels pmap.
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If the page is a kernel page, the caller is expected to
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handle adding the page to the kernel's pmap.
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.Pp
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If
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.Dv PG_WRITEABLE
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is set in the page's flags
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is set in the page's flags,
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.Dv OBJ_WRITEABLE
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and
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.Dv OBJ_MIGHTBEDIRTY
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@ -62,20 +62,20 @@ are set in the object's flags.
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.Pp
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The
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.Fn vm_page_remove
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function removes the given page from it's object, and from the
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function removes the given page from its object, and from the
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VM page hash table.
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The page must be busy prior to this call or the system will panic.
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The page must be busy prior to this call, or the system will panic.
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The pmap entry for the page is not removed by this function.
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.Pp
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The arguments to
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The arguments to
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.Fn vm_page_insert
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are:
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.Bl -tag -width ".Fa object
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.It m
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.Bl -tag -width ".Fa object"
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.It Fa m
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The page to add to the object.
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.It object
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.It Fa object
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The object the page should be added to.
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.It pindex
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.It Fa pindex
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The index into the object the page should be at.
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.El
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.Pp
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.Fn vm_page_remove
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are:
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.Bl -tag -width ".Fa m"
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.It m
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.It Fa m
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The page to remove.
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.El
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.Sh IMPLEMENTATION NOTES
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function lowers a page's protection.
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The protection is never raised by this function; therefore, if the page is
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already at
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.Dv VM_PROT_NONE
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the functions does nothing.
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.Dv VM_PROT_NONE ,
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the function does nothing.
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.Pp
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Its arguments are:
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.Bl -tag -width ".Fa prot"
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.It mem
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.It Fa mem
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The page whose protection is lowered.
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.It prot
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.It Fa prot
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The protection the page should be reduced to.
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If
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.Dv VM_PROT_NONE
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is specified then the
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is specified, then the
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.Dv PG_WRITABLE
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and
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.Dv PG_MAPPED
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@ -63,11 +63,12 @@ flags are cleared and the pmap_page's protection is set to
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.Dv VM_PROT_NONE .
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If
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.Dv VM_PROT_READ
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is specified then the
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is specified, then the
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.Dv PG_WRITABLE
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flag is cleared and the pmap_page's protection is set to
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.Dv VM_PROT_READ .
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.El
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.Pp
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Higher protection requests are ignored.
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.Sh AUTHORS
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This man page was written by
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.Os
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.Sh NAME
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.Nm vm_page_rename
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.Nd "moves a page"
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.Nd "move a page"
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.Sh SYNOPSIS
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.In sys/param.h
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.In vm/vm.h
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@ -54,16 +54,16 @@ unless it is wired or unmanaged, in which case the deactivation will
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fail.
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The entire page is marked as dirty after the move.
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.Pp
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The arguments to
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The arguments to
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.Fn vm_page_rename
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are:
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.Bl -tag -width ".Fa new_object"
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.It m
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.It Fa m
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The page to move.
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.It new_object
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.It Fa new_object
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The object the page should be inserted into.
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.It new_pindex
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The page index into
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.It Fa new_pindex
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The page index into
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.Fa new_object
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at which the new page should be inserted.
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.El
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