mm: Kconfig: fixup zsmalloc configuration

zsmalloc is not exclusive to zswap.  Commit b3fbd58fcbb1 ("mm: Kconfig:
simplify zswap configuration") made CONFIG_ZSMALLOC only visible when
CONFIG_ZSWAP is selected, which makes it impossible to menuconfig
zsmalloc-specific features (stats, chain-size, etc.) on systems that use
ZRAM but don't have ZSWAP enabled.

Make zsmalloc depend on both ZRAM and ZSWAP.

Link: https://lkml.kernel.org/r/20240903040143.1580705-1-senozhatsky@chromium.org
Fixes: b3fbd58fcbb1 ("mm: Kconfig: simplify zswap configuration")
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/Kconfig b/mm/Kconfig
index 8078a4b3c50955ee9cabe9a62cd46eeae2a975a2..7c23e8a889d063e531bfdc265a5b3f3db8ae04f5 100644 (file)
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -188,7 +188,7 @@ config Z3FOLD
 
 config ZSMALLOC
        tristate
-       prompt "N:1 compression allocator (zsmalloc)" if ZSWAP
+       prompt "N:1 compression allocator (zsmalloc)" if (ZSWAP || ZRAM)
        depends on MMU
        help
          zsmalloc is a slab-based memory allocator designed to store