The need_fixup arg to mem_cgroup_move_swap_account() is always false,
so just remove it.
Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
---
I believe it's now agreed that an 81-column line is better left unsplit.
mm/memcontrol.c | 19 +++----------------
1 file changed, 3 insertions(+), 16 deletions(-)
--- linux.git/mm/memcontrol.c 2012-03-23 10:19:53.576051635 -0700
+++ linux/mm/memcontrol.c 2012-03-23 10:50:31.196094204 -0700
@@ -3160,7 +3160,6 @@ void mem_cgroup_uncharge_swap(swp_entry_
* @entry: swap entry to be moved
* @from: mem_cgroup which the entry is moved from
* @to: mem_cgroup which the entry is moved to
- * @need_fixup: whether we should fixup res_counters and refcounts.
*
* It succeeds only when the swap_cgroup's record for this entry is the same
* as the mem_cgroup's id of @from.
@@ -3171,7 +3170,7 @@ void mem_cgroup_uncharge_swap(swp_entry_
* both res and memsw, and called css_get().
*/
static int mem_cgroup_move_swap_account(swp_entry_t entry,
- struct mem_cgroup *from, struct mem_cgroup *to, bool need_fixup)
+ struct mem_cgroup *from, struct mem_cgroup *to)
{
unsigned short old_id, new_id;
@@ -3190,24 +3189,13 @@ static int mem_cgroup_move_swap_account(
* swap-in, the refcount of @to might be decreased to 0.
*/
mem_cgroup_get(to);
- if (need_fixup) {
- if (!mem_cgroup_is_root(from))
- res_counter_uncharge(&from->memsw, PAGE_SIZE);
- mem_cgroup_put(from);
- /*
- * we charged both to->res and to->memsw, so we should
- * uncharge to->res.
- */
- if (!mem_cgroup_is_root(to))
- res_counter_uncharge(&to->res, PAGE_SIZE);
- }
return 0;
}
return -EINVAL;
}
#else
static inline int mem_cgroup_move_swap_account(swp_entry_t entry,
- struct mem_cgroup *from, struct mem_cgroup *to, bool need_fixup)
+ struct mem_cgroup *from, struct mem_cgroup *to)
{
return -EINVAL;
}
@@ -5529,8 +5517,7 @@ put: /* get_mctgt_type() gets the page
break;
case MC_TARGET_SWAP:
ent = target.ent;
- if (!mem_cgroup_move_swap_account(ent,
- mc.from, mc.to, false)) {
+ if (!mem_cgroup_move_swap_account(ent, mc.from, mc.to)) {
mc.precharge--;
/* we fixup refcnts and charges later. */
mc.moved_swap++;
--
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