mm/ksm: remove unused parameter from remove_trailing_rmap_items()

Since commit 6514d511dbe5 ("ksm: singly-linked rmap_list") was merged,
remove_trailing_rmap_items() doesn't use the 'mm_slot' parameter.  So
remove it, and update caller accordingly.

Link: https://lkml.kernel.org/r/20210330121320.1693474-1-cy.fan@huawei.com
Signed-off-by: Chengyang Fan <cy.fan@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/ksm.c b/mm/ksm.c
index e2ba4eb..b321a67 100644 (file)
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -815,8 +815,7 @@ out:
        cond_resched();         /* we're called from many long loops */
 }
 
-static void remove_trailing_rmap_items(struct mm_slot *mm_slot,
-                                      struct rmap_item **rmap_list)
+static void remove_trailing_rmap_items(struct rmap_item **rmap_list)
 {
        while (*rmap_list) {
                struct rmap_item *rmap_item = *rmap_list;
@@ -987,7 +986,7 @@ static int unmerge_and_remove_all_rmap_items(void)
                                goto error;
                }
 
-               remove_trailing_rmap_items(mm_slot, &mm_slot->rmap_list);
+               remove_trailing_rmap_items(&mm_slot->rmap_list);
                mmap_read_unlock(mm);
 
                spin_lock(&ksm_mmlist_lock);
@@ -2333,7 +2332,7 @@ next_mm:
         * Nuke all the rmap_items that are above this current rmap:
         * because there were no VM_MERGEABLE vmas with such addresses.
         */
-       remove_trailing_rmap_items(slot, ksm_scan.rmap_list);
+       remove_trailing_rmap_items(ksm_scan.rmap_list);
 
        spin_lock(&ksm_mmlist_lock);
        ksm_scan.mm_slot = list_entry(slot->mm_list.next,