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authorChristoph Hellwig <hch@lst.de>2022-01-21 22:15:14 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-22 08:33:38 +0200
commit6e61dde82e8bfe65e8ebbe43da45e615bc529236 (patch)
treeac299249b527513041324fbf84edbc8d87535765 /mm
parent1da0d94a3ec8c5f3793b7be8538b55e60ebeefe3 (diff)
mm: hide the FRONTSWAP Kconfig symbol
Select FRONTSWAP from ZSWAP instead of prompting for it. Link: https://lkml.kernel.org/r/20211224062246.1258487-14-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Juergen Gross <jgross@suse.com> Cc: Dan Streetman <ddstreet@ieee.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Hugh Dickins <hughd@google.com> Cc: Konrad Rzeszutek Wilk <Konrad.wilk@oracle.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Seth Jennings <sjenning@redhat.com> Cc: Vitaly Wool <vitaly.wool@konsulko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/Kconfig18
1 files changed, 3 insertions, 15 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index 430240289b02..3326ee3903f3 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -445,20 +445,7 @@ config HAVE_SETUP_PER_CPU_AREA
bool
config FRONTSWAP
- bool "Enable frontswap to cache swap pages if tmem is present"
- depends on SWAP
- help
- Frontswap is so named because it can be thought of as the opposite
- of a "backing" store for a swap device. The data is stored into
- "transcendent memory", memory that is not directly accessible or
- addressable by the kernel and is of unknown and possibly
- time-varying size. When space in transcendent memory is available,
- a significant swap I/O reduction may be achieved. When none is
- available, all frontswap calls are reduced to a single pointer-
- compare-against-NULL resulting in a negligible performance hit
- and swap data is stored as normal on the matching swap device.
-
- If unsure, say Y to enable frontswap.
+ bool
config CMA
bool "Contiguous Memory Allocator"
@@ -523,7 +510,8 @@ config MEM_SOFT_DIRTY
config ZSWAP
bool "Compressed cache for swap pages (EXPERIMENTAL)"
- depends on FRONTSWAP && CRYPTO=y
+ depends on SWAP && CRYPTO=y
+ select FRONTSWAP
select ZPOOL
help
A lightweight compressed cache for swap pages. It takes