Discovered while testing other mempolicy changes:
get_mempolicy() does not handle static/relative mode flags correctly.
Return the value that the user specified so that it can be restored
via set_mempolicy() if desired.
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
mm/mempolicy.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
Index: linux-2.6.34-rc1-mmotm-100311-1313/mm/mempolicy.c
===================================================================
--- linux-2.6.34-rc1-mmotm-100311-1313.orig/mm/mempolicy.c 2010-03-19 09:06:09.000000000 -0400
+++ linux-2.6.34-rc1-mmotm-100311-1313/mm/mempolicy.c 2010-03-19 09:23:29.000000000 -0400
@@ -806,9 +806,13 @@ static long do_get_mempolicy(int *policy
err = 0;
if (nmask) {
- task_lock(current);
- get_policy_nodemask(pol, nmask);
- task_unlock(current);
+ if (mpol_store_user_nodemask(pol)) {
+ *nmask = pol->w.user_nodemask;
+ } else {
+ task_lock(current);
+ get_policy_nodemask(pol, nmask);
+ task_unlock(current);
+ }
}
out:
--
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