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| author | Mike Yuan <me@yhndnzj.com> | 2024-03-27 12:45:34 +0100 |
|---|---|---|
| committer | Mike Yuan <me@yhndnzj.com> | 2024-03-28 10:19:35 +0100 |
| commit | a2124b35e92178fd028d7c29ecdd5e80ea7f7b8f (patch) | |
| tree | 0ff768a0ed336bd290d6279a1c93b9ac74f54990 /src/sleep | |
| parent | sleep: make write_mode take a path (diff) | |
| download | systemd-a2124b35e92178fd028d7c29ecdd5e80ea7f7b8f.tar.xz systemd-a2124b35e92178fd028d7c29ecdd5e80ea7f7b8f.zip | |
sleep: add SleepMemMode= setting for configuring /sys/power/mem_sleep
The setting is used when /sys/power/state is set to 'mem'
(common for suspend) or /sys/power/disk is set to 'suspend'
(hybrid-sleep). We default to kernel choice here, i.e.
respect what's set through 'mem_sleep_default=' kernel
cmdline option.
Diffstat (limited to 'src/sleep')
| -rw-r--r-- | src/sleep/sleep.c | 6 | ||||
| -rw-r--r-- | src/sleep/sleep.conf | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/src/sleep/sleep.c b/src/sleep/sleep.c index 72489b31a0..693484e886 100644 --- a/src/sleep/sleep.c +++ b/src/sleep/sleep.c @@ -237,6 +237,12 @@ static int execute( if (state_fd < 0) return log_error_errno(errno, "Failed to open /sys/power/state: %m"); + if (SLEEP_NEEDS_MEM_SLEEP(sleep_config, operation)) { + r = write_mode("/sys/power/mem_sleep", sleep_config->mem_modes); + if (r < 0) + return log_error_errno(r, "Failed to write mode to /sys/power/mem_sleep: %m"); + } + /* Configure hibernation settings if we are supposed to hibernate */ if (SLEEP_OPERATION_IS_HIBERNATION(operation)) { _cleanup_(hibernation_device_done) HibernationDevice hibernation_device = {}; diff --git a/src/sleep/sleep.conf b/src/sleep/sleep.conf index fad95b3897..d12f97099a 100644 --- a/src/sleep/sleep.conf +++ b/src/sleep/sleep.conf @@ -23,5 +23,6 @@ #AllowHybridSleep=yes #SuspendState=mem standby freeze #HibernateMode=platform shutdown +#SleepMemMode= #HibernateDelaySec= #SuspendEstimationSec=60min |