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[v8,8/8] mm: Document the newly added sysfs large folios zswpout stats.

Message ID 20240928021620.8369-9-kanchana.p.sridhar@intel.com (mailing list archive)
State New
Headers show
Series mm: zswap swap-out of large folios | expand

Commit Message

Sridhar, Kanchana P Sept. 28, 2024, 2:16 a.m. UTC 
Added documentation for the newly added sysfs per-order hugepage
"zswpout" stats.

Clarified that only non-zswap swapouts will be accounted in the existing
"swpout" stats.

Signed-off-by: Kanchana P Sridhar <kanchana.p.sridhar@intel.com>
---
 Documentation/admin-guide/mm/transhuge.rst | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
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Patch

diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst
index cfdd16a52e39..2a171ed5206e 100644
--- a/Documentation/admin-guide/mm/transhuge.rst
+++ b/Documentation/admin-guide/mm/transhuge.rst
@@ -530,10 +530,14 @@  anon_fault_fallback_charge
 	instead falls back to using huge pages with lower orders or
 	small pages even though the allocation was successful.
 
-swpout
-	is incremented every time a huge page is swapped out in one
+zswpout
+	is incremented every time a huge page is swapped out to zswap in one
 	piece without splitting.
 
+swpout
+	is incremented every time a huge page is swapped out to a non-zswap
+	swap device in one piece without splitting.
+
 swpout_fallback
 	is incremented if a huge page has to be split before swapout.
 	Usually because failed to allocate some continuous swap space