[PATCH v2] docs: hugetlbpage.rst: clarify HugePages_Total in hugetlbpage.rst

[Enze Li <lienze@kylinos.cn>]

"the size of the pool of huge pages" confused me, since it sounds like
a size in bytes.  It's actually the number of huge pages of the default
size in the pool, surplus pages included.  Reword it and point to
/sys/kernel/mm/hugepages for the other huge page sizes.

Suggested-by: Daniel Pereira <danielmaraboo@gmail.com>
Signed-off-by: Enze Li <lienze@kylinos.cn>
---
Changes in v2:
- Drop "persistent" from the description
- Reward the note on other sizes.

 Documentation/admin-guide/mm/hugetlbpage.rst | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/mm/hugetlbpage.rst b/Documentation/admin-guide/mm/hugetlbpage.rst
index 2075f1f14a42..282bc420d97b 100644
--- a/Documentation/admin-guide/mm/hugetlbpage.rst
+++ b/Documentation/admin-guide/mm/hugetlbpage.rst
@@ -43,7 +43,10 @@ The output of ``cat /proc/meminfo`` will include lines like::
 where:
 
 HugePages_Total
-	is the size of the pool of huge pages.
+	is the number of huge pages of the default size in the pool,
+	both persistent and surplus.  Counts for the other huge page
+	sizes are available in ``/sys/kernel/mm/hugepages`` (described
+	below).
 HugePages_Free
 	is the number of huge pages in the pool that are not yet
         allocated.

base-commit: 3fdcce698abd9193752ee89fb1a440cdceb1b74a
-- 
2.56.0