tree 933b5a95604674d0534b0290d8c3633425989f62
parent 12f8ad4b0533d9212cb1d5e58ed73d2170114785
author Linus Torvalds <torvalds@linux-foundation.org> 1336673178 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1336704755 -0700

vfs: remove unnecessary d_unhashed() check from __d_lookup_rcu

The check for d_unhashed() is not strictly incorrect, but at the same
time it is also not sensible.  The actual dentry removal from the dentry
hash chains is totally asynchronous to the __d_lookup_rcu() logic, and
we depend on __d_drop() updating the sequence number to invalidate any
lookup of an unhashed dentry.

So checking d_unhashed() is not incorrect, but it's not useful either:
the code has to work correctly even without it. So just remove it.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>