ovl: introduce copy up waitqueue
authorAmir Goldstein <amir73il@gmail.com>
Tue, 17 Jan 2017 04:34:56 +0000 (06:34 +0200)
committerMiklos Szeredi <mszeredi@redhat.com>
Tue, 7 Feb 2017 14:47:14 +0000 (15:47 +0100)
commit39d3d60a54df05a1a32fa71159d7a26a530dee6c
tree176b1873dbc9d1a96abccf597ca91c82d27de87d
parentd8514d8edb5b045cf7f708e14f888ce760d60f0b
ovl: introduce copy up waitqueue

The overlay sb 'copyup_wq' and overlay inode 'copying' condition
variable are about to replace the upper sb rename_lock, as finer
grained synchronization objects for concurrent copy up.

Suggested-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
fs/overlayfs/overlayfs.h
fs/overlayfs/ovl_entry.h
fs/overlayfs/super.c
fs/overlayfs/util.c