David Howells ea5b778a8b Unexport do_add_mount() and add in follow_automount(), not ->d_automount() ... Unexport do_add_mount() and make ->d_automount() return the vfsmount to be added rather than calling do_add_mount() itself. follow_automount() will then do the addition. This slightly complicates things as ->d_automount() normally wants to add the new vfsmount to an expiration list and start an expiration timer. The problem with that is that the vfsmount will be deleted if it has a refcount of 1 and the timer will not repeat if the expiration list is empty. To this end, we require the vfsmount to be returned from d_automount() with a refcount of (at least) 2. One of these refs will be dropped unconditionally. In addition, follow_automount() must get a 3rd ref around the call to do_add_mount() lest it eat a ref and return an error, leaving the mount we have open to being expired as we would otherwise have only 1 ref on it. d_automount() should also add the the vfsmount to the expiration list (by calling mnt_set_expiry()) and start the expiration timer before returning, if this mechanism is to be used. The vfsmount will be unlinked from the expiration list by follow_automount() if do_add_mount() fails. This patch also fixes the call to do_add_mount() for AFS to propagate the mount flags from the parent vfsmount. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2011-01-15 20:07:48 -05:00
..
afs.h
afs_cm.h
afs_fs.h
afs_vl.h
cache.c
callback.c
cell.c
cmservice.c	afs: add afs_wq and use it instead of the system workqueue	2011-01-14 09:25:11 -08:00
dir.c	AFS: Use d_automount() rather than abusing follow_link()	2011-01-15 20:07:33 -05:00
file.c
flock.c
fsclient.c
inode.c	AFS: Use d_automount() rather than abusing follow_link()	2011-01-15 20:07:33 -05:00
internal.h	AFS: Use d_automount() rather than abusing follow_link()	2011-01-15 20:07:33 -05:00
Kconfig
main.c	afs: add afs_wq and use it instead of the system workqueue	2011-01-14 09:25:11 -08:00
Makefile
misc.c
mntpt.c	Unexport do_add_mount() and add in follow_automount(), not ->d_automount()	2011-01-15 20:07:48 -05:00
netdevices.c
proc.c
rxrpc.c	afs: add afs_wq and use it instead of the system workqueue	2011-01-14 09:25:11 -08:00
security.c
server.c	afs: add afs_wq and use it instead of the system workqueue	2011-01-14 09:25:11 -08:00
super.c
vlclient.c
vlocation.c	afs: add afs_wq and use it instead of the system workqueue	2011-01-14 09:25:11 -08:00
vnode.c
volume.c
write.c