vfs_unlink — unlink a filesystem object
int vfs_unlink ( | struct inode * dir, |
| struct dentry * dentry, | |
struct inode ** delegated_inode); |
dirparent directory
dentryvictim
delegated_inodereturns victim inode, if the inode is delegated.
The caller must hold dir->i_mutex.
If vfs_unlink discovers a delegation, it will return -EWOULDBLOCK and return a reference to the inode in delegated_inode. The caller should then break the delegation on that inode and retry. Because breaking a delegation may take a long time, the caller should drop dir->i_mutex before doing so.
Alternatively, a caller may pass NULL for delegated_inode. This may be appropriate for callers that expect the underlying filesystem not to be NFS exported.