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authorGao feng <gaofeng@cn.fujitsu.com>2013-08-30 10:56:02 +0800
committerLennart Poettering <lennart@poettering.net>2013-09-10 17:29:55 +0200
commit670612567ba54808fea06c445c6f2a7ee2d58197 (patch)
tree59bdbee4ee36945ce4b215681996dc8b8fd65f22 /src
parentf004c2ca11b1700fb8539a667194e8cd86cef7be (diff)
systemcl: add support for setting BlockIORead/WriteBandwidth for unit
This patch allows user to set up BlockIOReadBandwidth and BlockIOWriteBandwidth for unit through systemctl. Such as systemctl set-property sshd.service BlockIOReadBandwidth="/dev/sda 100000" systemctl set-property sshd.service BlockIOWriteBandwidth="/dev/sda 200000"
Diffstat (limited to 'src')
-rw-r--r--src/systemctl/systemctl.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index a635891bc0..889d120588 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -3685,6 +3685,11 @@ static int append_assignment(DBusMessageIter *iter, const char *assignment) {
rwm = "";
}
+ if (!path_startswith(path, "/dev")) {
+ log_error("%s is not a device file in /dev.", path);
+ return -EINVAL;
+ }
+
if (!dbus_message_iter_open_container(&sub2, DBUS_TYPE_STRUCT, NULL, &sub3) ||
!dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &path) ||
!dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &rwm) ||
@@ -3695,6 +3700,52 @@ static int append_assignment(DBusMessageIter *iter, const char *assignment) {
if (!dbus_message_iter_close_container(&sub, &sub2))
return log_oom();
+ } else if (streq(field, "BlockIOReadBandwidth") || streq(field, "BlockIOWriteBandwidth")) {
+ DBusMessageIter sub2;
+
+ if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, "a(st)", &sub) ||
+ !dbus_message_iter_open_container(&sub, DBUS_TYPE_ARRAY, "(st)", &sub2))
+ return log_oom();
+
+ if (!isempty(eq)) {
+ const char *path, *bandwidth;
+ DBusMessageIter sub3;
+ uint64_t u;
+ off_t bytes;
+ char *e;
+
+ e = strchr(eq, ' ');
+ if (e) {
+ path = strndupa(eq, e - eq);
+ bandwidth = e+1;
+ } else {
+ log_error("Failed to parse %s value %s.", field, eq);
+ return -EINVAL;
+ }
+
+ if (!path_startswith(path, "/dev")) {
+ log_error("%s is not a device file in /dev.", path);
+ return -EINVAL;
+ }
+
+ r = parse_bytes(bandwidth, &bytes);
+ if (r < 0) {
+ log_error("Failed to parse byte value %s.", bandwidth);
+ return -EINVAL;
+ }
+
+ u = (uint64_t) bytes;
+
+ if (!dbus_message_iter_open_container(&sub2, DBUS_TYPE_STRUCT, NULL, &sub3) ||
+ !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &path) ||
+ !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_UINT64, &u) ||
+ !dbus_message_iter_close_container(&sub2, &sub3))
+ return log_oom();
+ }
+
+ if (!dbus_message_iter_close_container(&sub, &sub2))
+ return log_oom();
+
} else {
log_error("Unknown assignment %s.", assignment);
return -EINVAL;