check_submounts_and_drop(9) prune dcache, check for submounts and drop

SYNOPSIS

int check_submounts_and_drop(struct dentry * dentry);

ARGUMENTS

dentry

dentry to prune and drop

DESCRIPTION

All done as a single atomic operation relative to has_unlinked_ancestor. Returns 0 if successfully unhashed parent. If there were submounts then return -EBUSY.

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