K 10
svn:author
V 7
delphij
K 8
svn:date
V 27
2012-07-17T17:34:48.832041Z
K 7
svn:log
V 680
MFC the following revisions per request from gleb@:

r197953: Add locking around access to parent node, and bail out when
the parent node is already freed rather than panicking the system.

r227822: Avoid panics from recursive rename operations. Not a perfect
patch but good enough for now.

r232959: Don't enforce LK_RETRY to get existing vnode in
tmpfs_alloc_vp().

Doomed vnode is hardly of any use here, besides all callers handle error
case. vfs_hash_get() does the same.

Don't mess with vnode holdcount, vget() takes care of it already.

r232960: Prevent tmpfs_rename() deadlock in a way similar to UFS

Unlock vnodes and try to lock them one by one. Relookup fvp and tvp.

END