z3fold: the 3-fold allocator for compressed pages

[cascardo/linux.git] / mm / Kconfig

diff --git a/mm/Kconfig b/mm/Kconfig
index b0432b7..1a6a28e 100644 (file)
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -567,7 +567,7 @@ config ZPOOL
          zsmalloc.
 
 config ZBUD
-       tristate "Low density storage for compressed pages"
+       tristate "Low (Up to 2x) density storage for compressed pages"
        default n
        help
          A special purpose allocator for storing compressed pages.
@@ -576,6 +576,16 @@ config ZBUD
          deterministic reclaim properties that make it preferable to a higher
          density approach when reclaim will be used.
 
+config Z3FOLD
+       tristate "Up to 3x density storage for compressed pages"
+       depends on ZPOOL
+       default n
+       help
+         A special purpose allocator for storing compressed pages.
+         It is designed to store up to three compressed pages per physical
+         page. It is a ZBUD derivative so the simplicity and determinism are
+         still there.
+
 config ZSMALLOC
        tristate "Memory allocator for compressed pages"
        depends on MMU