On 2024/12/17 19:59, David Hildenbrand wrote:
On 17.12.24 09:55, Baolin Wang wrote:
The '/proc/PID/smaps' does not have the 'FileHugeMapped' field to
count the
file transparent huge pages, instead, the 'FilePmdMapped' field should be
used. Fix it.
Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
---
Documentation/admin-guide/mm/transhuge.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/mm/transhuge.rst
b/Documentation/admin-guide/mm/transhuge.rst
index 156a03af0a88..dff8d5985f0f 100644
--- a/Documentation/admin-guide/mm/transhuge.rst
+++ b/Documentation/admin-guide/mm/transhuge.rst
@@ -466,7 +466,7 @@ AnonHugePmdMapped).
The number of file transparent huge pages mapped to userspace is
available
by reading ShmemPmdMapped and ShmemHugePages fields in
``/proc/meminfo``.
To identify what applications are mapping file transparent huge
pages, it
-is necessary to read ``/proc/PID/smaps`` and count the FileHugeMapped
fields
+is necessary to read ``/proc/PID/smaps`` and count the FilePmdMapped
fields
for each mapping.
We should probably change the above to clarify that this is all about
PMD sized things.
Yes, I will create a separate patch to update the document where it
needs to specify that it is for PMD-sized huge page.
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Thanks.
