lfs_segclean —
mark a segment clean
Standard C Library (libc, -lc)
#include <sys/types.h>
int
  
  lfs_segclean(fsid_t
    *fsidp, u_long
    segment);
lfs_segclean() marks segment number
  segment in LFS file system *fsidp
  "clean" or available for writing.
lfs_segclean() returns 0 on success, or -1 on error.
An error return from lfs_segclean() indicates:
  - [EFAULT]
- fsidp points outside the process's allocated address
      space.
- [EINVAL]
- *fsidp does not specify a valid file system.
- [EBUSY]
- segment is marked SU_ACTIVE, meaning that it does
      not yet belong to a valid checkpoint.
Thelfs_segclean() function call appeared in
  4.4BSD.