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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 18:50:03 +0000
commit01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch)
treeb406c5242a088c4f59c6e4b719b783f43aca6ae9 /drivers/block/zram/Kconfig
parentAdding upstream version 6.7.12. (diff)
downloadlinux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz
linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip
Adding upstream version 6.8.9.upstream/6.8.9
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/block/zram/Kconfig')
-rw-r--r--drivers/block/zram/Kconfig15
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/block/zram/Kconfig b/drivers/block/zram/Kconfig
index 0386b7da02..7b29cce60a 100644
--- a/drivers/block/zram/Kconfig
+++ b/drivers/block/zram/Kconfig
@@ -59,8 +59,8 @@ config ZRAM_WRITEBACK
bool "Write back incompressible or idle page to backing device"
depends on ZRAM
help
- With incompressible page, there is no memory saving to keep it
- in memory. Instead, write it out to backing device.
+ This lets zram entries (incompressible or idle pages) be written
+ back to a backing device, helping save memory.
For this feature, admin should set up backing device via
/sys/block/zramX/backing_dev.
@@ -69,9 +69,18 @@ config ZRAM_WRITEBACK
See Documentation/admin-guide/blockdev/zram.rst for more information.
+config ZRAM_TRACK_ENTRY_ACTIME
+ bool "Track access time of zram entries"
+ depends on ZRAM
+ help
+ With this feature zram tracks access time of every stored
+ entry (page), which can be used for a more fine grained IDLE
+ pages writeback.
+
config ZRAM_MEMORY_TRACKING
bool "Track zRam block status"
depends on ZRAM && DEBUG_FS
+ select ZRAM_TRACK_ENTRY_ACTIME
help
With this feature, admin can track the state of allocated blocks
of zRAM. Admin could see the information via
@@ -86,4 +95,4 @@ config ZRAM_MULTI_COMP
This will enable multi-compression streams, so that ZRAM can
re-compress pages using a potentially slower but more effective
compression algorithm. Note, that IDLE page recompression
- requires ZRAM_MEMORY_TRACKING.
+ requires ZRAM_TRACK_ENTRY_ACTIME.