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| author | Amir Goldstein <amir73il@gmail.com> | 2017-01-17 07:34:56 +0300 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2017-02-07 17:47:14 +0300 |
| commit | 39d3d60a54df05a1a32fa71159d7a26a530dee6c (patch) | |
| tree | 176b1873dbc9d1a96abccf597ca91c82d27de87d /fs/overlayfs/ovl_entry.h | |
| parent | d8514d8edb5b045cf7f708e14f888ce760d60f0b (diff) | |
| download | linux-39d3d60a54df05a1a32fa71159d7a26a530dee6c.tar.xz | |
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>
Diffstat (limited to 'fs/overlayfs/ovl_entry.h')
| -rw-r--r-- | fs/overlayfs/ovl_entry.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/overlayfs/ovl_entry.h b/fs/overlayfs/ovl_entry.h index 65f240001aa6..59614faa14c3 100644 --- a/fs/overlayfs/ovl_entry.h +++ b/fs/overlayfs/ovl_entry.h @@ -28,6 +28,7 @@ struct ovl_fs { /* creds of process who forced instantiation of super block */ const struct cred *creator_cred; bool tmpfile; + wait_queue_head_t copyup_wq; }; /* private information held for every overlayfs dentry */ @@ -39,6 +40,7 @@ struct ovl_entry { u64 version; const char *redirect; bool opaque; + bool copying; }; struct rcu_head rcu; }; |