diff options
| author | Nikhil V <quic_nprakash@quicinc.com> | 2024-01-22 18:45:26 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-02-05 14:28:54 +0100 |
| commit | a06c6f5d3cc90b3b070d7b99979d57238db77a86 (patch) | |
| tree | f52374ea2f6a428837de034636c22720cc9d8369 /kernel/power/Kconfig | |
| parent | 89a807625f9701154167bf6bf136adfa1be4d849 (diff) | |
PM: hibernate: Move to crypto APIs for LZO compression
Currently for hibernation, LZO is the only compression algorithm
available and uses the existing LZO library calls. However, there
is no flexibility to switch to other algorithms which provides better
results. The main idea is that different compression algorithms have
different characteristics and hibernation may benefit when it uses
alternate algorithms.
By moving to crypto based APIs, it lays a foundation to use other
compression algorithms for hibernation. There are no functional changes
introduced by this approach.
Signed-off-by: Nikhil V <quic_nprakash@quicinc.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/power/Kconfig')
| -rw-r--r-- | kernel/power/Kconfig | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 4b31629c5be4..d4167159bae8 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig @@ -39,9 +39,9 @@ config HIBERNATION bool "Hibernation (aka 'suspend to disk')" depends on SWAP && ARCH_HIBERNATION_POSSIBLE select HIBERNATE_CALLBACKS - select LZO_COMPRESS - select LZO_DECOMPRESS select CRC32 + select CRYPTO + select CRYPTO_LZO help Enable the suspend to disk (STD) functionality, which is usually called "hibernation" in user interfaces. STD checkpoints the @@ -92,6 +92,23 @@ config HIBERNATION_SNAPSHOT_DEV If in doubt, say Y. +choice + prompt "Default compressor" + default HIBERNATION_COMP_LZO + depends on HIBERNATION + +config HIBERNATION_COMP_LZO + bool "lzo" + depends on CRYPTO_LZO + +endchoice + +config HIBERNATION_DEF_COMP + string + default "lzo" if HIBERNATION_COMP_LZO + help + Default compressor to be used for hibernation. + config PM_STD_PARTITION string "Default resume partition" depends on HIBERNATION |