tree bc8af66b6dd2d0f21a2a3f48a19975ae2cdbae4e
parent 5eef7fa905c814826f518aca2d414ca77508ce30
author Nick Piggin <npiggin@kernel.dk> 1294382963 +1100
committer Nick Piggin <npiggin@kernel.dk> 1294383018 +1100

fs: change d_delete semantics

Change d_delete from a dentry deletion notification to a dentry caching
advise, more like ->drop_inode. Require it to be constant and idempotent,
and not take d_lock. This is how all existing filesystems use the callback
anyway.

This makes fine grained dentry locking of dput and dentry lru scanning
much simpler.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>