Re: [libvirt] [PATCH 02/17] Introduce the function virCgroupMoveTask

From: Wen Congyang <wency(a)cn.fujitsu.com&gt; Introduce a new API to move tasks of one controller from a cgroup to another cgroup Signed-off-by: Wen Congyang <wency(a)cn.fujitsu.com&gt; Signed-off-by: Tang Chen <tangchen(a)cn.fujitsu.com&gt; Signed-off-by: Hu Tao <hutao(a)cn.fujitsu.com&gt; ---

+static int virCgroupAddTaskStrController(virCgroupPtr group, + const char *pidstr, + int controller) +{ + char *str = NULL, *cur = NULL, *next = NULL; + unsigned long long p = 0; + int rc = 0; + + if (virAsprintf(&str, "%s", pidstr) < 0) + return -1; + + cur = str; + while ((next = strchr(cur, '\n')) != NULL) { + *next = '\0'; + rc = virStrToLong_ull(cur, NULL, 10, &p); + if (rc != 0) + goto cleanup; + cur = next + 1; + + rc = virCgroupAddTaskController(group, p, controller); + if (rc != 0) + goto cleanup; + } + if (cur != '\0') { + rc = virStrToLong_ull(cur, NULL, 10, &p); + if (rc != 0) + goto cleanup; + rc = virCgroupAddTaskController(group, p, controller); + if (rc != 0) + goto cleanup; + }