--- a/mm/filemap.c~mm-filemap-fix-a-typo-in-comment-unneccssary-unnecessary +++ a/mm/filemap.c @@ -1256,7 +1256,7 @@ EXPORT_SYMBOL_GPL(add_page_wait_queue); * instead. * * The read of PG_waiters has to be after (or concurrently with) PG_locked - * being cleared, but a memory barrier should be unneccssary since it is + * being cleared, but a memory barrier should be unnecessary since it is * in the same byte as PG_locked. */ static inline bool clear_bit_unlock_is_negative_byte(long nr, volatile void *mem)