Linux VM integration / device special files

Support added to provide reasonable values for the global Solaris
VM variables: minfree, desfree, lotsfree, needfree.  These values
are set to the sum of their per-zone linux counterparts which
should be close enough for Solaris consumers.

When a non-GPL app links against the SPL we cannot use the udev
interfaces, which means non of the device special files are created.
Because of this I had added a poor mans udev which cause the SPL
to invoke an upcall and create the basic devices when a minor
is registered.  When a minor is unregistered we use the vnode
interface to unlink the special file.
This commit is contained in:
Brian Behlendorf
2009-02-04 15:15:41 -08:00
parent 31a033ecd4
commit 36b313dacf
13 changed files with 498 additions and 64 deletions
Vendored
+117
View File
@@ -20481,6 +20481,123 @@ rm -f build/conftest.o build/conftest.mod.c build/conftest.mod.o build/conftest.
echo "$as_me:$LINENO: checking whether symbol first_online_pgdat is exported" >&5
echo $ECHO_N "checking whether symbol first_online_pgdat is exported... $ECHO_C" >&6
grep -q -E '[[:space:]]first_online_pgdat[[:space:]]' $LINUX/Module.symvers 2>/dev/null
rc=$?
if test $rc -ne 0; then
export=0
for file in ; do
grep -q -E "EXPORT_SYMBOL.*(first_online_pgdat)" "$LINUX/$file" 2>/dev/null
rc=$?
if test $rc -eq 0; then
export=1
break;
fi
done
if test $export -eq 0; then
echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
cat >>confdefs.h <<\_ACEOF
#define HAVE_FIRST_ONLINE_PGDAT 1
_ACEOF
fi
else
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
cat >>confdefs.h <<\_ACEOF
#define HAVE_FIRST_ONLINE_PGDAT 1
_ACEOF
fi
echo "$as_me:$LINENO: checking whether symbol next_online_pgdat is exported" >&5
echo $ECHO_N "checking whether symbol next_online_pgdat is exported... $ECHO_C" >&6
grep -q -E '[[:space:]]next_online_pgdat[[:space:]]' $LINUX/Module.symvers 2>/dev/null
rc=$?
if test $rc -ne 0; then
export=0
for file in ; do
grep -q -E "EXPORT_SYMBOL.*(next_online_pgdat)" "$LINUX/$file" 2>/dev/null
rc=$?
if test $rc -eq 0; then
export=1
break;
fi
done
if test $export -eq 0; then
echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
cat >>confdefs.h <<\_ACEOF
#define HAVE_NEXT_ONLINE_PGDAT 1
_ACEOF
fi
else
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
cat >>confdefs.h <<\_ACEOF
#define HAVE_NEXT_ONLINE_PGDAT 1
_ACEOF
fi
echo "$as_me:$LINENO: checking whether symbol next_zone is exported" >&5
echo $ECHO_N "checking whether symbol next_zone is exported... $ECHO_C" >&6
grep -q -E '[[:space:]]next_zone[[:space:]]' $LINUX/Module.symvers 2>/dev/null
rc=$?
if test $rc -ne 0; then
export=0
for file in ; do
grep -q -E "EXPORT_SYMBOL.*(next_zone)" "$LINUX/$file" 2>/dev/null
rc=$?
if test $rc -eq 0; then
export=1
break;
fi
done
if test $export -eq 0; then
echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
else
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
cat >>confdefs.h <<\_ACEOF
#define HAVE_NEXT_ZONE 1
_ACEOF
fi
else
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
cat >>confdefs.h <<\_ACEOF
#define HAVE_NEXT_ZONE 1
_ACEOF
fi
TOPDIR=`/bin/pwd`
# Add "V=1" to KERNELMAKE_PARAMS to enable verbose module build