diff options
Diffstat (limited to 'src/core/execute.c')
| -rw-r--r-- | src/core/execute.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/core/execute.c b/src/core/execute.c index 3b327ac88d..1802ae05b3 100644 --- a/src/core/execute.c +++ b/src/core/execute.c @@ -5193,6 +5193,16 @@ static int exec_child( return r; } + if (context->memory_ksm >= 0) + if (prctl(PR_SET_MEMORY_MERGE, context->memory_ksm) < 0) { + if (ERRNO_IS_NOT_SUPPORTED(errno)) + log_unit_debug_errno(unit, errno, "KSM support not available, ignoring."); + else { + *exit_status = EXIT_KSM; + return log_unit_error_errno(unit, errno, "Failed to set KSM: %m"); + } + } + /* Drop groups as early as possible. * This needs to be done after PrivateDevices=y setup as device nodes should be owned by the host's root. * For non-root in a userns, devices will be owned by the user/group before the group change, and nobody. */ @@ -5773,6 +5783,7 @@ void exec_context_init(ExecContext *c) { c->tty_cols = UINT_MAX; numa_policy_reset(&c->numa_policy); c->private_mounts = -1; + c->memory_ksm = -1; } void exec_context_done(ExecContext *c) { |