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selftests/cgroup: Fix build on older distros 

On older distros struct clone_args does not have a cgroup member,
leading to build errors:

 cgroup_util.c: In function 'clone_into_cgroup':
 cgroup_util.c:343:4: error: 'struct clone_args' has no member named 'cgroup'
 cgroup_util.c:346:33: error: invalid application of 'sizeof' to incomplete
  type 'struct clone_args'

But the selftests already have a locally defined version of the
structure which is up to date, called __clone_args.

So use __clone_args which fixes the error.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sachin Sant <sachinp@linux.vnet.ibm.com>>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Sachin Sant 2020-11-06 13:10:06 +05:30 committed by Shuah Khan
parent 93f20eff0c
commit c2e46f6b3e
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/cgroup/cgroup_util.c
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@ -337,13 +337,13 @@ pid_t clone_into_cgroup(int cgroup_fd)
#ifdef CLONE_ARGS_SIZE_VER2
pid_t pid;
struct clone_args args = {
struct __clone_args args = {
.flags = CLONE_INTO_CGROUP,
.exit_signal = SIGCHLD,
.cgroup = cgroup_fd,
};
pid = sys_clone3(&args, sizeof(struct clone_args));
pid = sys_clone3(&args, sizeof(struct __clone_args));
/*
* Verify that this is a genuine test failure:
* ENOSYS -> clone3() not available