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| author |   Amir Goldstein <amir73il@gmail.com> | 2017-01-17 06:34:56 +0200 |
|---|---|---|
| committer |   Miklos Szeredi <mszeredi@redhat.com> | 2017-02-07 15:47:14 +0100 |
| commit | 39d3d60a54df05a1a32fa71159d7a26a530dee6c (patch) | |
| tree | 176b1873dbc9d1a96abccf597ca91c82d27de87d /fs/overlayfs/overlayfs.h | |
| parent | ovl: copy up regular file using O_TMPFILE (diff) | |
| download | linux-dev-39d3d60a54df05a1a32fa71159d7a26a530dee6c.tar.xz linux-dev-39d3d60a54df05a1a32fa71159d7a26a530dee6c.zip | |
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/overlayfs.h')
| -rw-r--r-- | fs/overlayfs/overlayfs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 3822a909ce1f..741dc0b6931f 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -178,6 +178,8 @@ void ovl_dentry_version_inc(struct dentry *dentry); u64 ovl_dentry_version_get(struct dentry *dentry); bool ovl_is_whiteout(struct dentry *dentry); struct file *ovl_path_open(struct path *path, int flags); +int ovl_copy_up_start(struct dentry *dentry); +void ovl_copy_up_end(struct dentry *dentry); /* namei.c */ int ovl_path_next(int idx, struct dentry *dentry, struct path *path); |