From: Sage Weil Date: Fri, 28 Oct 2011 17:02:42 +0000 (-0700) Subject: vfs: add d_prune dentry operation X-Git-Tag: v3.2-rc1~84^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0023bc617ba600956b9226f1806033d7486c8ba;p=pandora-kernel.git vfs: add d_prune dentry operation This adds a d_prune dentry operation that is called by the VFS prior to pruning (i.e. unhashing and killing) a hashed dentry from the dcache. Wrap dentry_lru_del() and use the new _prune() helper in the cases where we are about to unhash and kill the dentry. This will be used by Ceph to maintain a flag indicating whether the complete contents of a directory are contained in the dcache, allowing it to satisfy lookups and readdir without addition server communication. Renumber a few DCACHE_* #defines to group DCACHE_OP_PRUNE with the other DCACHE_OP_ bits. Signed-off-by: Sage Weil Signed-off-by: Christoph Hellwig --- Reading git-diff-tree failed