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H A Dnamei.c368ee9ba Fri May 08 16:19:59 CDT 2015 Al Viro <viro@zeniv.linux.org.uk> namei: path_init() calling conventions change

* lift link_path_walk() into callers; moving it down into path_init()
had been a mistake. Stack footprint, among other things...
* do _not_ call path_cleanup() after path_init() failure; on all failure
exits out of it we have nothing for path_cleanup() to do
* have path_init() return pathname or ERR_PTR(-E...)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
368ee9ba Fri May 08 16:19:59 CDT 2015 Al Viro <viro@zeniv.linux.org.uk> namei: path_init() calling conventions change

* lift link_path_walk() into callers; moving it down into path_init()
had been a mistake. Stack footprint, among other things...
* do _not_ call path_cleanup() after path_init() failure; on all failure
exits out of it we have nothing for path_cleanup() to do
* have path_init() return pathname or ERR_PTR(-E...)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>