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| author |   Christoph Hellwig <hch@lst.de> | 2022-01-21 22:15:14 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-22 08:33:38 +0200 |
| commit | 6e61dde82e8bfe65e8ebbe43da45e615bc529236 (patch) | |
| tree | ac299249b527513041324fbf84edbc8d87535765 /mm/Kconfig | |
| parent | frontswap: remove support for multiple ops (diff) | |
| download | linux-dev-6e61dde82e8bfe65e8ebbe43da45e615bc529236.tar.xz linux-dev-6e61dde82e8bfe65e8ebbe43da45e615bc529236.zip | |
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/Kconfig')
| -rw-r--r-- | mm/Kconfig | 18 |
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 |