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SLES10 Fixes (part 6)

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- Prior to 2.6.17 there were no *_pgdat helper functions in mm/mmzone.c.
  Instead for_each_zone() operated directly on pgdat_list which may or
  may not have been exported depending on how your kernel was compiled.
  Now new configure checks determine if you have the helpers or not, and
  if the needed symbols are exported.  If they are not exported then they
  are dynamically aquired at runtime by kallsyms_lookup_name().
This commit is contained in:
Brian Behlendorf
2009-05-20 14:23:13 -07:00
parent 3731931529
commit 5232d256b4
6 changed files with 157 additions and 23 deletions
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configure
Vendored
+57
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@@ -20798,6 +20798,24 @@ _ACEOF
echo "$as_me:$LINENO: checking whether symbol *_pgdat exist" >&5
echo $ECHO_N "checking whether symbol *_pgdat exist... $ECHO_C" >&6
grep -q -E 'first_online_pgdat' $LINUX/include/linux/mmzone.h 2>/dev/null
rc=$?
if test $rc -eq 0; then
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
cat >>confdefs.h <<\_ACEOF
#define HAVE_PGDAT_HELPERS 1
_ACEOF
else
echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
echo "$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:]]' $LINUX_OBJ/Module.symvers 2>/dev/null
@@ -20915,6 +20933,45 @@ _ACEOF
echo "$as_me:$LINENO: checking whether symbol pgdat_list is exported" >&5
echo $ECHO_N "checking whether symbol pgdat_list is exported... $ECHO_C" >&6
grep -q -E '[[:space:]]pgdat_list[[:space:]]' $LINUX_OBJ/Module.symvers 2>/dev/null
rc=$?
if test $rc -ne 0; then
export=0
for file in ; do
grep -q -E "EXPORT_SYMBOL.*(pgdat_list)" "$LINUX_OBJ/$file" 2>/dev/null
rc=$?
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 "${ECHO_T}yes" >&6
cat >>confdefs.h <<\_ACEOF
#define HAVE_PGDAT_LIST 1
_ACEOF
fi
else
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
cat >>confdefs.h <<\_ACEOF
#define HAVE_PGDAT_LIST 1
_ACEOF
fi
echo "$as_me:$LINENO: checking whether symbol get_zone_counts is exported" >&5
echo $ECHO_N "checking whether symbol get_zone_counts is exported... $ECHO_C" >&6
grep -q -E '[[:space:]]get_zone_counts[[:space:]]' $LINUX_OBJ/Module.symvers 2>/dev/null