[Ocfs2-devel] What's the need of OCFS2_INODE_MAYBE_ORPHANED?

[Goldwyn Rodrigues]

Hi,

>From the comments in fs/ocfs2/inode.h:90 it seems, this was used in
legacy ocfs2 systems when a node received unlink votes. Since unlink
votes has been done away with and replaced with open locks, is this
flag still required? If yes, why?

>From my ongoing investigation of unlink() times, it seems this flag is
causing the delay with releasing the open locks while downconverting
dentry locks. The flag is set  _everytime_ a dentry downconvert is
performed even if the file  is not scheduled to be deleted. If not, we
can be smartly evict the inodes which are *not* to be deleted
(i_nlink>0) by not offloading to ocfs2_wq. This way open lock will
release faster speeding up unlink on the deleting node.

-- 
Goldwyn