[PATCH v2 7/7] mm: Documentation: clarify where the mTHP stats live

[Nico Pache <npache@redhat.com>]

The note about khugepaged counters references /proc/vmstat for the PMD
case, but never mentions where the mTHPs stats can be found
(i.e.: /sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/stats/)
Add a small addition to this section for clarity.

Also fix a missing period while we are at it.

Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Suggested-by: Lorenzo Stoakes <ljs@kernel.org>
Signed-off-by: Nico Pache <npache@redhat.com>
---
 Documentation/admin-guide/mm/transhuge.rst | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst
index 16f37135ed80..b187d618452f 100644
--- a/Documentation/admin-guide/mm/transhuge.rst
+++ b/Documentation/admin-guide/mm/transhuge.rst
@@ -224,7 +224,7 @@ khugepaged will be automatically started when any THP size is enabled
 (either of the per-size anon control or the top-level control are set
 to "always" or "madvise"), and it'll be automatically shutdown when
 all THP sizes are disabled (when both the per-size anon control and the
-top-level control are "never")
+top-level control are "never").
 
 process THP controls
 --------------------
@@ -301,7 +301,9 @@ being replaced by a PMD mapping, or (2) physical pages replaced by one
 hugepage of various sizes (PMD-sized or mTHP). Each may happen independently,
 or together, depending on the type of memory and the failures that occur.
 As such, this value should be interpreted roughly as a sign of progress,
-and counters in /proc/vmstat consulted for more accurate accounting)::
+and counters in /proc/vmstat consulted for more accurate accounting.
+Per-order mTHP collapse statistics are also available under
+/sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/stats/)::
 
 	/sys/kernel/mm/transparent_hugepage/khugepaged/pages_collapsed
 
-- 
2.54.0