diff options
| author | Amir Goldstein <amir73il@gmail.com> | 2023-11-22 17:48:52 +0200 |
|---|---|---|
| committer | Amir Goldstein <amir73il@gmail.com> | 2023-12-23 16:35:09 +0200 |
| commit | a6293b3e285cd0d7692141d7981a5f144f0e2f0b (patch) | |
| tree | 56b8e8c52600e141350247d6a0e3d0f763e7f6a3 /fs/overlayfs/overlayfs.h | |
| parent | f91a704f7161c2cf0fcd41fa9fbec4355b813fff (diff) | |
fs: factor out backing_file_{read,write}_iter() helpers
Overlayfs submits files io to backing files on other filesystems.
Factor out some common helpers to perform io to backing files, into
fs/backing-file.c.
Suggested-by: Miklos Szeredi <miklos@szeredi.hu>
Link: https://lore.kernel.org/r/CAJfpeguhmZbjP3JLqtUy0AdWaHOkAPWeP827BBWwRFEAUgnUcQ@mail.gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Diffstat (limited to 'fs/overlayfs/overlayfs.h')
| -rw-r--r-- | fs/overlayfs/overlayfs.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index ca88b2636a57..509a57c85fae 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -417,6 +417,12 @@ int ovl_want_write(struct dentry *dentry); void ovl_drop_write(struct dentry *dentry); struct dentry *ovl_workdir(struct dentry *dentry); const struct cred *ovl_override_creds(struct super_block *sb); + +static inline const struct cred *ovl_creds(struct super_block *sb) +{ + return OVL_FS(sb)->creator_cred; +} + int ovl_can_decode_fh(struct super_block *sb); struct dentry *ovl_indexdir(struct super_block *sb); bool ovl_index_all(struct super_block *sb); @@ -829,8 +835,6 @@ struct dentry *ovl_create_temp(struct ovl_fs *ofs, struct dentry *workdir, /* file.c */ extern const struct file_operations ovl_file_operations; -int __init ovl_aio_request_cache_init(void); -void ovl_aio_request_cache_destroy(void); int ovl_real_fileattr_get(const struct path *realpath, struct fileattr *fa); int ovl_real_fileattr_set(const struct path *realpath, struct fileattr *fa); int ovl_fileattr_get(struct dentry *dentry, struct fileattr *fa); |