LLAPI\_LAYOUT\_COMP\_USE\_ID(3) Lustre Library Functions LLAPI\_LAYOUT\_COMP\_USE\_ID(3)

# [NAME](#NAME)

llapi\_layout\_comp\_use\_id - set currently active component to given ID

# [SYNOPSIS](#SYNOPSIS)

```
#include <lustre/lustreapi.h>
```

```
int llapi_layout_comp_use_id(struct llapi_layout *layout,
                             uint32_t *comp_id);
```

# [DESCRIPTION](#DESCRIPTION)

Sets currently active component of *layout* to the component with specified *comp\_id*.

# [RETURN VALUES](#RETURN_VALUES)

Return 0 on success. Otherwise, if an error occurred -1 is returned and *errno* is set appropriately.

# [ERRORS](#ERRORS)

[**ENOENT**](#ENOENT)

No such component ID exists.

[**EINVAL**](#EINVAL)

An invalid argument was specified.

# [AVAILABILITY](#AVAILABILITY)

**llapi\_layout\_comp\_use\_id()** is part of the [**lustre**(7)](/man/enterprise-packages/lustre/lustre.7) user application interface library since release 2.10.0

# [SEE ALSO](#SEE_ALSO)

[**llapi\_layout\_alloc**(3)](/man/enterprise-packages/lustre/llapi_layout_alloc.3), [**llapi\_layout\_comp\_del**(3)](/man/enterprise-packages/lustre/llapi_layout_comp_del.3), [**llapi\_layout\_comp\_id\_get**(3)](/man/enterprise-packages/lustre/llapi_layout_comp_id_get.3), [**llapi\_layout\_comp\_use**(3)](/man/enterprise-packages/lustre/llapi_layout_comp_use.3), [**llapi\_layout\_file\_open**(3)](/man/enterprise-packages/lustre/llapi_layout_file_open.3), [**llapi\_layout**(7)](/man/enterprise-packages/lustre/llapi_layout.7), [**lustreapi**(7)](/man/enterprise-packages/lustre/lustreapi.7)

2024-08-27 Lustre User API

---

Document: llapi_layout_comp_use_id(3) from lustre 2.17.59-r2 (Chainguard OS)
Source: https://github.com/lustre/lustre-release