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core: rename MemoryLimitByPhysicalMemory transient property to MemoryLimitScale

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That way, we can neatly keep this in line with the new TasksMaxScale= option.

Note that we didn't release a version with MemoryLimitByPhysicalMemory= yet,
hence this change should be unproblematic without breaking API.
This commit is contained in:
Lennart Poettering 2016-07-19 16:10:15 +02:00
parent 83f8e80857
commit f7903e8db6
2 changed files with 9 additions and 7 deletions
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12
src/core/dbus-cgroup.c
View File

@ -856,7 +856,7 @@ int bus_cgroup_set_property(
return 1;
} else if (STR_IN_SET(name, "MemoryLowByPhysicalMemory", "MemoryHighByPhysicalMemory", "MemoryMaxByPhysicalMemory")) {
} else if (STR_IN_SET(name, "MemoryLowScale", "MemoryHighScale", "MemoryMaxScale")) {
uint32_t raw;
uint64_t v;
@ -872,7 +872,7 @@ int bus_cgroup_set_property(
const char *e;
/* Chop off suffix */
assert_se(e = endswith(name, "ByPhysicalMemory"));
assert_se(e = endswith(name, "Scale"));
name = strndupa(name, e - name);
if (streq(name, "MemoryLow"))
@ -883,7 +883,8 @@ int bus_cgroup_set_property(
c->memory_max = v;
unit_invalidate_cgroup(u, CGROUP_MASK_MEMORY);
unit_write_drop_in_private_format(u, mode, name, "%s=%" PRIu32 "%%", name, (uint32_t) (DIV_ROUND_UP((uint64_t) raw * 100, (uint64_t) UINT32_MAX)));
unit_write_drop_in_private_format(u, mode, name, "%s=%" PRIu32 "%%", name,
(uint32_t) (DIV_ROUND_UP((uint64_t) raw * 100U, (uint64_t) UINT32_MAX)));
}
return 1;
@ -909,7 +910,7 @@ int bus_cgroup_set_property(
return 1;
} else if (streq(name, "MemoryLimitByPhysicalMemory")) {
} else if (streq(name, "MemoryLimitScale")) {
uint64_t limit;
uint32_t raw;
@ -924,7 +925,8 @@ int bus_cgroup_set_property(
if (mode != UNIT_CHECK) {
c->memory_limit = limit;
unit_invalidate_cgroup(u, CGROUP_MASK_MEMORY);
unit_write_drop_in_private_format(u, mode, "MemoryLimit", "MemoryLimit=%" PRIu32 "%%", (uint32_t) (DIV_ROUND_UP((uint64_t) raw * 100, (uint64_t) UINT32_MAX)));
unit_write_drop_in_private_format(u, mode, "MemoryLimit", "MemoryLimit=%" PRIu32 "%%",
(uint32_t) (DIV_ROUND_UP((uint64_t) raw * 100U, (uint64_t) UINT32_MAX)));
}
return 1;

4
src/shared/bus-unit-util.c
View File

@ -132,10 +132,10 @@ int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignmen
char *n;
/* When this is a percentage we'll convert this into a relative value in the range
* 0…UINT32_MAX and pass it in the MemoryLowByPhysicalMemory property (and related
* 0…UINT32_MAX and pass it in the MemoryLowScale property (and related
* ones). This way the physical memory size can be determined server-side */
n = strjoina(field, "ByPhysicalMemory");
n = strjoina(field, "Scale");
r = sd_bus_message_append(m, "sv", n, "u", (uint32_t) (((uint64_t) UINT32_MAX * r) / 100U));
goto finish;