On Fri, 9 Aug 2013 11:28:56 +0000 (UTC) Attilio Rao wrote:
> Author: attilio
> Date: Fri Aug 9 11:28:55 2013
> New Revision: 254141
> URL: http://svnweb.freebsd.org/changeset/base/254141
>
> Log:
> On all the architectures, avoid to preallocate the physical memory
> for nodes used in vm_radix.
> On architectures supporting direct mapping, also avoid to pre-allocate
> the KVA for such nodes.
>
> In order to do so make the operations derived from vm_radix_insert()
> to fail and handle all the deriving failure of those.
>
> vm_radix-wise introduce a new function called vm_radix_replace(),
> which can replace a leaf node, already present, with a new one,
> and take into account the possibility, during vm_radix_insert()
> allocation, that the operations on the radix trie can recurse.
> This means that if operations in vm_radix_insert() recursed
> vm_radix_insert() will start from scratch again.
>
> Sponsored by: EMC / Isilon storage division
> Reviewed by: alc (older version)
> Reviewed by: jeff
> Tested by: pho, scottl
VPO_BUSY doesn't appear to be defined anywhere:
cc -c -O -pipe -march=pentium4m -std=c99 -g -Wall -Wredundant-decls
-Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith
-Winline -Wcast-qual -Wundef -Wno-pointer-sign -fformat-extensions
-Wmissing-include-dirs -fdiagnostics-show-option
-Wno-error-tautological-compare -Wno-error-empty-body
-Wno-error-parentheses-equality -nostdinc -I.
-I/usr/home/tijl/projects/freebsd/base/head/sys
-I/usr/home/tijl/projects/freebsd/base/head/sys/contrib/altq
-I/usr/home/tijl/projects/freebsd/base/head/sys/contrib/libfdt -D_KERNEL
-DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h -mno-aes -mno-avx -mno-mmx
-mno-sse -msoft-float -ffreestanding -fstack-protector -Werror
/usr/home/tijl/projects/freebsd/base/head/sys/vm/vm_page.c
/usr/home/tijl/projects/freebsd/base/head/sys/vm/vm_page.c:1205:21: error: use
of undeclared identifier 'VPO_BUSY'
if (mold->oflags & VPO_BUSY) {
^
/usr/home/tijl/projects/freebsd/base/head/sys/vm/vm_page.c:1206:20: error: use
of undeclared identifier 'VPO_BUSY'
mold->oflags &= ~VPO_BUSY;
^
2 errors generated.
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