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aed4313995
Now that we've removed the hash and pos from the dentry_info struct we can do without it. We can store the refresh gen in the d_fsdsta pointer (sorry, 64bit only for now.. could allocate if we needed to.) This gets rid of the lock coverage spinlocks and puts a bit more pressure on lock lookup, which we already know we have to make more efficient. We can get rid of all the dentry info allocation calls. Now that we're not setting d_op as we allocate d_fsdata we put the ops on the super block so that we get d_revalidate called on all our dentries. We also are a bit more precise about the errors we can return from verification. If the target of a dentry link changes then we return -ESTALE rather than silently performing the caller's operation on another inode. Signed-off-by: Zach Brown <zab@versity.com>