On Sun, Dec 28, 2008 at 07:51:29PM +0530, Dhaval Giani wrote:
> cgroup_get_cgroup was failing with the memory controller enabled. It was
> failing on memory.force_empty. The file has read permissions, but there
> is no read routine associated with it inside the kernel. fscanf failed
> and so cgroup_get_cgroup also failed. This was unexpected,
> cgroup_get_cgroup should have just skipped the file. In order to fix
> this, change cg_rd_ctrl_file to return more descriptive errors.
>
> Sigend-off-by: Dhaval Giani <[email protected]>
Tested using,
#include <libcgroup.h>
#include <stdio.h>
#include <libcgroup-internal.h>
void print_cgroup(struct cgroup *cgroup)
{
int i, j;
printf("cgroup name is %s\n", cgroup->name);
for (i = 0; i < cgroup->index; i++) {
printf("\tcontroller is %s\n", cgroup->controller[i]->name);
for (j = 0; j < cgroup->controller[i]->index; j++) {
printf("\t\tcontrol value name is %s and value is %s\n",
cgroup->controller[i]->values[j]->name,
cgroup->controller[i]->values[j]->value);
}
}
}
int main()
{
struct cgroup *create, *get;
struct cgroup_controller *cpu, *memory;
int ret;
create = cgroup_new_cgroup("test");
cpu = cgroup_add_controller(create, "cpu");
ret = cgroup_add_value_string(cpu, "cpu.shares", "2048");
memory = cgroup_add_controller(create, "memory");
ret = cgroup_add_value_string(memory, "memory.limit_in_bytes",
"1024000");
ret = cgroup_set_uid_gid(create, 0, 0, 500, 500);
ret = cgroup_init();
ret = cgroup_create_cgroup(create, 0);
get = cgroup_new_cgroup("test");
ret = cgroup_get_cgroup(get);
if (ret) {
printf("cgroup_get_cgroup failed with %d\n", ret);
}
print_cgroup(get);
return 0;
}
--
regards,
Dhaval
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