diff options
| author | Amir Goldstein <amir73il@gmail.com> | 2023-08-16 12:18:15 +0300 |
|---|---|---|
| committer | Amir Goldstein <amir73il@gmail.com> | 2023-10-31 00:12:57 +0200 |
| commit | d08d3b3c2caf6c482703bbc5efaa7b9ae95dea20 (patch) | |
| tree | f2a2f3a802638ba7c3bb1f283cf6b0c8e764f521 /fs/overlayfs/overlayfs.h | |
| parent | c002728f608183449673818076380124935e6b9b (diff) | |
ovl: split ovl_want_write() into two helpers
ovl_get_write_access() gets write access to upper mnt without taking
freeze protection on upper sb and ovl_start_write() only takes freeze
protection on upper sb.
These helpers will be used to breakup the large ovl_want_write() scope
during copy up into finer grained freeze protection scopes.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Diffstat (limited to 'fs/overlayfs/overlayfs.h')
| -rw-r--r-- | fs/overlayfs/overlayfs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 9817b2dcb132..a22de83e0a9b 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -398,6 +398,10 @@ static inline bool ovl_open_flags_need_copy_up(int flags) } /* util.c */ +int ovl_get_write_access(struct dentry *dentry); +void ovl_put_write_access(struct dentry *dentry); +void ovl_start_write(struct dentry *dentry); +void ovl_end_write(struct dentry *dentry); int ovl_want_write(struct dentry *dentry); void ovl_drop_write(struct dentry *dentry); struct dentry *ovl_workdir(struct dentry *dentry); |