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D_INVALIDATE(9) The Linux VFS D_INVALIDATE(9)

NAME

d_invalidate - detach submounts, prune dcache, and drop

SYNOPSIS

int 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.

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June 2024 Kernel Hackers Manual 3.10