[RFC v2 2/5] mm/migrate: remove unused mm argument from do_move_pages_to_node

From: Gregory Price
Date: Tue Sep 19 2023 - 19:20:27 EST


preparatory work to re-use do_move_pages_to_node with a physical
address instead of virtual address. This function does not actively
use the mm_struct, so it can be removed.

Signed-off-by: Gregory Price <gregory.price@xxxxxxxxxxxx>
---
mm/migrate.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/mm/migrate.c b/mm/migrate.c
index a0b0c5a7f8a5..dbe436163d65 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2026,8 +2026,7 @@ static int store_status(int __user *status, int start, int value, int nr)
return 0;
}

-static int do_move_pages_to_node(struct mm_struct *mm,
- struct list_head *pagelist, int node)
+static int do_move_pages_to_node(struct list_head *pagelist, int node)
{
int err;
struct migration_target_control mtc = {
@@ -2123,7 +2122,7 @@ static int add_page_for_migration(struct mm_struct *mm, const void __user *p,
return err;
}

-static int move_pages_and_store_status(struct mm_struct *mm, int node,
+static int move_pages_and_store_status(int node,
struct list_head *pagelist, int __user *status,
int start, int i, unsigned long nr_pages)
{
@@ -2132,7 +2131,7 @@ static int move_pages_and_store_status(struct mm_struct *mm, int node,
if (list_empty(pagelist))
return 0;

- err = do_move_pages_to_node(mm, pagelist, node);
+ err = do_move_pages_to_node(pagelist, node);
if (err) {
/*
* Positive err means the number of failed
@@ -2200,7 +2199,7 @@ static int do_pages_move(struct mm_struct *mm, nodemask_t task_nodes,
current_node = node;
start = i;
} else if (node != current_node) {
- err = move_pages_and_store_status(mm, current_node,
+ err = move_pages_and_store_status(current_node,
&pagelist, status, start, i, nr_pages);
if (err)
goto out;
@@ -2235,7 +2234,7 @@ static int do_pages_move(struct mm_struct *mm, nodemask_t task_nodes,
if (err)
goto out_flush;

- err = move_pages_and_store_status(mm, current_node, &pagelist,
+ err = move_pages_and_store_status(current_node, &pagelist,
status, start, i, nr_pages);
if (err) {
/* We have accounted for page i */
@@ -2247,7 +2246,7 @@ static int do_pages_move(struct mm_struct *mm, nodemask_t task_nodes,
}
out_flush:
/* Make sure we do not overwrite the existing error */
- err1 = move_pages_and_store_status(mm, current_node, &pagelist,
+ err1 = move_pages_and_store_status(current_node, &pagelist,
status, start, i, nr_pages);
if (err >= 0)
err = err1;
--
2.39.1