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mute the memory recursiveprot log if version of kernel is low.

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This commit is contained in:
cunshunxia
2023-06-26 04:14:40 +00:00
committed by Lennart Poettering
parent 1db8c86196
commit 556c674d6e
1 changed files with 16 additions and 1 deletions
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17
src/shared/mount-setup.c
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@ -61,6 +61,21 @@ typedef struct MountPoint {
#define N_EARLY_MOUNT 4
#endif
static bool check_recursiveprot_supported(void) {
int r;
if (!cg_is_unified_wanted())
return false;
r = mount_option_supported("cgroup2", "memory_recursiveprot", NULL);
if (r < 0)
log_debug_errno(r, "Failed to determiner whether the 'memory_recursiveprot' mount option is supported, assuming not: %m");
else if (r == 0)
log_debug("This kernel version does not support 'memory_recursiveprot', not using mount option.");
return r > 0;
}
static const MountPoint mount_table[] = {
{ "proc", "/proc", "proc", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV,
NULL, MNT_FATAL|MNT_IN_CONTAINER|MNT_FOLLOW_SYMLINK },
@ -87,7 +102,7 @@ static const MountPoint mount_table[] = {
{ "tmpfs", "/run", "tmpfs", "mode=0755" TMPFS_LIMITS_RUN, MS_NOSUID|MS_NODEV|MS_STRICTATIME,
NULL, MNT_FATAL|MNT_IN_CONTAINER },
{ "cgroup2", "/sys/fs/cgroup", "cgroup2", "nsdelegate,memory_recursiveprot", MS_NOSUID|MS_NOEXEC|MS_NODEV,
cg_is_unified_wanted, MNT_IN_CONTAINER|MNT_CHECK_WRITABLE },
check_recursiveprot_supported, MNT_IN_CONTAINER|MNT_CHECK_WRITABLE },
{ "cgroup2", "/sys/fs/cgroup", "cgroup2", "nsdelegate", MS_NOSUID|MS_NOEXEC|MS_NODEV,
cg_is_unified_wanted, MNT_IN_CONTAINER|MNT_CHECK_WRITABLE },
{ "cgroup2", "/sys/fs/cgroup", "cgroup2", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV,