d_invalidate (9) Linux Manual Page
d_invalidate – detach submounts, prune dcache, and drop
Synopsis
void d_invalidate(struct dentry *dentry);Arguments
dentry
-
- dentry to invalidate (aka detach, prune and drop)
Description
no dcache lock.
The final d_drop is done as an atomic operation relative to rename_lock ensuring there are no races with d_set_mounted. This ensures there are no unhashed dentries on the path to a mountpoint.