[PATCH 20/25] s390/fbatch: no lru_add_drain_all() in s390_wiggle_split_folio()

[Hugh Dickins]

s390_wiggle_split_folio() has no good reason to lru_add_drain_all(),
now that the per-cpu fbatch references are gone.

Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
---
 arch/s390/kernel/uv.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c
index dc14ebc0105b..120a467026a5 100644
--- a/arch/s390/kernel/uv.c
+++ b/arch/s390/kernel/uv.c
@@ -364,7 +364,6 @@ int s390_wiggle_split_folio(struct mm_struct *mm, struct folio *folio)
 
 	lockdep_assert_not_held(&mm->mmap_lock);
 	folio_wait_writeback(folio);
-	lru_add_drain_all();
 
 	if (!folio_test_large(folio))
 		return 0;
-- 
2.51.0