mm/damon/core: fix wrong comment of damon_call() return timing

mm/damon/core: fix wrong comment of damon_call() return timing

Patch series "mm/damon: misc documentation fixups".

First three patches fix up issues in the documents, including wrong
explanation of a behavior, wrong link, and a contextual typo.  Following
five patches update documents for not yet documented features and
behaviors.

This patch (of 8):

damon_call() works asynchronously and synchronously for repeat and
non-repeat mode requests, respectively.  The comment about the behavior is
wrong, though.  Fix it.

The wrong comment was introduced together with the repeat mode, by commit
43df7676e550 ("mm/damon/core: introduce repeat mode damon_call()").

Link: https://lkml.kernel.org/r/20251026182216.118200-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20251026182216.118200-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>