if (is_local_root) /* Make sure we don't try to display messages with an empty path. */
path = "/";
- /* We generally ignore errors caused by read-only mounted
- * cgroup trees (assuming we are running in a container then),
- * and missing cgroups, i.e. EROFS and ENOENT. */
+ /* We generally ignore errors caused by read-only mounted cgroup trees (assuming we are running in a container
+ * then), and missing cgroups, i.e. EROFS and ENOENT. */
- if (apply_mask & CGROUP_MASK_CPU) {
- bool has_weight, has_shares;
-
- has_weight = cgroup_context_has_cpu_weight(c);
- has_shares = cgroup_context_has_cpu_shares(c);
+ /* In fully unified mode these attributes don't exist on the host cgroup root. On legacy the weights exist, but
+ * setting the weight makes very little sense on the host root cgroup, as there are no other cgroups at this
+ * level. The quota exists there too, but any attempt to write to it is refused with EINVAL. Inside of
+ * containers we want to leave control of these to the container manager (and if cgroupsv2 delegation is used
+ * we couldn't even write to them if we wanted to). */
+ if ((apply_mask & CGROUP_MASK_CPU) && !is_local_root) {
if (cg_all_unified() > 0) {
+ uint64_t weight;
- /* In fully unified mode these attributes don't exist on the host cgroup root, and inside of
- * containers we want to leave control of these to the container manager (and if delegation is
- * used we couldn't even write to them if we wanted to). */
- if (!is_local_root) {
- uint64_t weight;
-
- if (has_weight)
- weight = cgroup_context_cpu_weight(c, state);
- else if (has_shares) {
- uint64_t shares;
+ if (cgroup_context_has_cpu_weight(c))
+ weight = cgroup_context_cpu_weight(c, state);
+ else if (cgroup_context_has_cpu_shares(c)) {
+ uint64_t shares;
- shares = cgroup_context_cpu_shares(c, state);
- weight = cgroup_cpu_shares_to_weight(shares);
+ shares = cgroup_context_cpu_shares(c, state);
+ weight = cgroup_cpu_shares_to_weight(shares);
- log_cgroup_compat(u, "Applying [Startup]CPUShares %" PRIu64 " as [Startup]CPUWeight %" PRIu64 " on %s",
- shares, weight, path);
- } else
- weight = CGROUP_WEIGHT_DEFAULT;
+ log_cgroup_compat(u, "Applying [Startup]CPUShares=%" PRIu64 " as [Startup]CPUWeight=%" PRIu64 " on %s",
+ shares, weight, path);
+ } else
+ weight = CGROUP_WEIGHT_DEFAULT;
- cgroup_apply_unified_cpu_weight(u, weight);
- cgroup_apply_unified_cpu_quota(u, c->cpu_quota_per_sec_usec);
- }
+ cgroup_apply_unified_cpu_weight(u, weight);
+ cgroup_apply_unified_cpu_quota(u, c->cpu_quota_per_sec_usec);
} else {
- /* Setting the weight makes very little sense on the host root cgroup, as there are no other
- * cgroups at this level. And for containers we want to leave management of this to the
- * container manager */
- if (!is_local_root) {
- uint64_t shares;
-
- if (has_weight) {
- uint64_t weight;
+ uint64_t shares;
- weight = cgroup_context_cpu_weight(c, state);
- shares = cgroup_cpu_weight_to_shares(weight);
+ if (cgroup_context_has_cpu_weight(c)) {
+ uint64_t weight;
- log_cgroup_compat(u, "Applying [Startup]CPUWeight %" PRIu64 " as [Startup]CPUShares %" PRIu64 " on %s",
- weight, shares, path);
- } else if (has_shares)
- shares = cgroup_context_cpu_shares(c, state);
- else
- shares = CGROUP_CPU_SHARES_DEFAULT;
+ weight = cgroup_context_cpu_weight(c, state);
+ shares = cgroup_cpu_weight_to_shares(weight);
- cgroup_apply_legacy_cpu_shares(u, shares);
- }
+ log_cgroup_compat(u, "Applying [Startup]CPUWeight=%" PRIu64 " as [Startup]CPUShares=%" PRIu64 " on %s",
+ weight, shares, path);
+ } else if (cgroup_context_has_cpu_shares(c))
+ shares = cgroup_context_cpu_shares(c, state);
+ else
+ shares = CGROUP_CPU_SHARES_DEFAULT;
- /* The "cpu" quota attribute is available on the host root, hence manage it there. But in
- * containers let's leave this to the container manager. */
- if (is_host_root || !is_local_root)
- cgroup_apply_legacy_cpu_quota(u, c->cpu_quota_per_sec_usec);
+ cgroup_apply_legacy_cpu_shares(u, shares);
+ cgroup_apply_legacy_cpu_quota(u, c->cpu_quota_per_sec_usec);
}
}
blkio_weight = cgroup_context_blkio_weight(c, state);
weight = cgroup_weight_blkio_to_io(blkio_weight);
- log_cgroup_compat(u, "Applying [Startup]BlockIOWeight %" PRIu64 " as [Startup]IOWeight %" PRIu64,
+ log_cgroup_compat(u, "Applying [Startup]BlockIOWeight=%" PRIu64 " as [Startup]IOWeight=%" PRIu64,
blkio_weight, weight);
} else
weight = CGROUP_WEIGHT_DEFAULT;
LIST_FOREACH(device_weights, w, c->blockio_device_weights) {
weight = cgroup_weight_blkio_to_io(w->weight);
- log_cgroup_compat(u, "Applying BlockIODeviceWeight %" PRIu64 " as IODeviceWeight %" PRIu64 " for %s",
+ log_cgroup_compat(u, "Applying BlockIODeviceWeight=%" PRIu64 " as IODeviceWeight=%" PRIu64 " for %s",
w->weight, weight, w->path);
cgroup_apply_io_device_weight(u, w->path, weight);
limits[CGROUP_IO_RBPS_MAX] = b->rbps;
limits[CGROUP_IO_WBPS_MAX] = b->wbps;
- log_cgroup_compat(u, "Applying BlockIO{Read|Write}Bandwidth %" PRIu64 " %" PRIu64 " as IO{Read|Write}BandwidthMax for %s",
+ log_cgroup_compat(u, "Applying BlockIO{Read|Write}Bandwidth=%" PRIu64 " %" PRIu64 " as IO{Read|Write}BandwidthMax= for %s",
b->rbps, b->wbps, b->path);
cgroup_apply_io_device_limit(u, b->path, limits);
io_weight = cgroup_context_io_weight(c, state);
weight = cgroup_weight_io_to_blkio(cgroup_context_io_weight(c, state));
- log_cgroup_compat(u, "Applying [Startup]IOWeight %" PRIu64 " as [Startup]BlockIOWeight %" PRIu64,
+ log_cgroup_compat(u, "Applying [Startup]IOWeight=%" PRIu64 " as [Startup]BlockIOWeight=%" PRIu64,
io_weight, weight);
} else if (has_blockio)
weight = cgroup_context_blkio_weight(c, state);
LIST_FOREACH(device_weights, w, c->io_device_weights) {
weight = cgroup_weight_io_to_blkio(w->weight);
- log_cgroup_compat(u, "Applying IODeviceWeight %" PRIu64 " as BlockIODeviceWeight %" PRIu64 " for %s",
+ log_cgroup_compat(u, "Applying IODeviceWeight=%" PRIu64 " as BlockIODeviceWeight=%" PRIu64 " for %s",
w->weight, weight, w->path);
cgroup_apply_blkio_device_weight(u, w->path, weight);
CGroupIODeviceLimit *l;
LIST_FOREACH(device_limits, l, c->io_device_limits) {
- log_cgroup_compat(u, "Applying IO{Read|Write}Bandwidth %" PRIu64 " %" PRIu64 " as BlockIO{Read|Write}BandwidthMax for %s",
+ log_cgroup_compat(u, "Applying IO{Read|Write}Bandwidth=%" PRIu64 " %" PRIu64 " as BlockIO{Read|Write}BandwidthMax= for %s",
l->limits[CGROUP_IO_RBPS_MAX], l->limits[CGROUP_IO_WBPS_MAX], l->path);
cgroup_apply_blkio_device_limit(u, l->path, l->limits[CGROUP_IO_RBPS_MAX], l->limits[CGROUP_IO_WBPS_MAX]);
}
}
- if (apply_mask & CGROUP_MASK_MEMORY) {
+ /* In unified mode 'memory' attributes do not exist on the root cgroup. In legacy mode 'memory.limit_in_bytes'
+ * exists on the root cgroup, but any writes to it are refused with EINVAL. And if we run in a container we
+ * want to leave control to the container manager (and if proper cgroupsv2 delegation is used we couldn't even
+ * write to this if we wanted to.) */
+ if ((apply_mask & CGROUP_MASK_MEMORY) && !is_local_root) {
if (cg_all_unified() > 0) {
- /* In unified mode 'memory' attributes do not exist on the root cgroup. And if we run in a
- * container we want to leave control to the container manager (and if proper delegation is
- * used we couldn't even write to this if we wanted to. */
- if (!is_local_root) {
- uint64_t max, swap_max = CGROUP_LIMIT_MAX;
-
- if (cgroup_context_has_unified_memory_config(c)) {
- max = c->memory_max;
- swap_max = c->memory_swap_max;
- } else {
- max = c->memory_limit;
-
- if (max != CGROUP_LIMIT_MAX)
- log_cgroup_compat(u, "Applying MemoryLimit=%" PRIu64 " as MemoryMax=", max);
- }
+ uint64_t max, swap_max = CGROUP_LIMIT_MAX;
+
+ if (cgroup_context_has_unified_memory_config(c)) {
+ max = c->memory_max;
+ swap_max = c->memory_swap_max;
+ } else {
+ max = c->memory_limit;
- cgroup_apply_unified_memory_limit(u, "memory.min", c->memory_min);
- cgroup_apply_unified_memory_limit(u, "memory.low", c->memory_low);
- cgroup_apply_unified_memory_limit(u, "memory.high", c->memory_high);
- cgroup_apply_unified_memory_limit(u, "memory.max", max);
- cgroup_apply_unified_memory_limit(u, "memory.swap.max", swap_max);
+ if (max != CGROUP_LIMIT_MAX)
+ log_cgroup_compat(u, "Applying MemoryLimit=%" PRIu64 " as MemoryMax=", max);
}
- } else {
- /* In legacy mode 'memory' exists on the host root, but in container mode we want to leave it
- * to the container manager around us */
- if (is_host_root || !is_local_root) {
- char buf[DECIMAL_STR_MAX(uint64_t) + 1];
- uint64_t val;
+ cgroup_apply_unified_memory_limit(u, "memory.min", c->memory_min);
+ cgroup_apply_unified_memory_limit(u, "memory.low", c->memory_low);
+ cgroup_apply_unified_memory_limit(u, "memory.high", c->memory_high);
+ cgroup_apply_unified_memory_limit(u, "memory.max", max);
+ cgroup_apply_unified_memory_limit(u, "memory.swap.max", swap_max);
- if (cgroup_context_has_unified_memory_config(c)) {
- val = c->memory_max;
- log_cgroup_compat(u, "Applying MemoryMax=%" PRIi64 " as MemoryLimit=", val);
- } else
- val = c->memory_limit;
+ } else {
+ char buf[DECIMAL_STR_MAX(uint64_t) + 1];
+ uint64_t val;
- if (val == CGROUP_LIMIT_MAX)
- strncpy(buf, "-1\n", sizeof(buf));
- else
- xsprintf(buf, "%" PRIu64 "\n", val);
+ if (cgroup_context_has_unified_memory_config(c)) {
+ val = c->memory_max;
+ log_cgroup_compat(u, "Applying MemoryMax=%" PRIi64 " as MemoryLimit=", val);
+ } else
+ val = c->memory_limit;
- (void) set_attribute_and_warn(u, "memory", "memory.limit_in_bytes", buf);
- }
+ if (val == CGROUP_LIMIT_MAX)
+ strncpy(buf, "-1\n", sizeof(buf));
+ else
+ xsprintf(buf, "%" PRIu64 "\n", val);
+
+ (void) set_attribute_and_warn(u, "memory", "memory.limit_in_bytes", buf);
}
}
- /* On cgroupsv2 we can apply BPF everywhre. On cgroupsv1 we apply it everywhere except for the root of
+ /* On cgroupsv2 we can apply BPF everywhere. On cgroupsv1 we apply it everywhere except for the root of
* containers, where we leave this to the manager */
if ((apply_mask & (CGROUP_MASK_DEVICES | CGROUP_MASK_BPF_DEVICES)) &&
(is_host_root || cg_all_unified() > 0 || !is_local_root)) {
r = procfs_tasks_set_limit(TASKS_MAX);
else
r = 0;
-
if (r < 0)
log_unit_full(u, LOG_LEVEL_CGROUP_WRITE(r), r,
"Failed to write to tasks limit sysctls: %m");
projects / thirdparty / systemd.git / blobdiff