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| author | Amir Goldstein <amir73il@gmail.com> | 2023-04-27 12:21:46 +0300 |
|---|---|---|
| committer | Amir Goldstein <amir73il@gmail.com> | 2023-06-19 14:01:14 +0300 |
| commit | 2b21da920866ad20b5e3119f3b8d2267774b7b0a (patch) | |
| tree | 93b2c8fd6d67615cabfef1de618ec9bc73343c22 /fs/overlayfs/overlayfs.h | |
| parent | 5436ab0a864e8bb263919e51c26395a67bde17ca (diff) | |
| download | linux-2b21da920866ad20b5e3119f3b8d2267774b7b0a.tar.gz linux-2b21da920866ad20b5e3119f3b8d2267774b7b0a.tar.bz2 linux-2b21da920866ad20b5e3119f3b8d2267774b7b0a.zip | |
ovl: prepare to store lowerdata redirect for lazy lowerdata lookup
Prepare to allow ovl_lookup() to leave the last entry in a non-dir
lowerstack empty to signify lazy lowerdata lookup.
In this case, ovl_lookup() stores the redirect path from metacopy to
lowerdata in ovl_inode, which is going to be used later to perform the
lazy lowerdata lookup.
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 2ccd6326c2c7..5cc03b8d7b25 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -405,6 +405,7 @@ struct inode *ovl_inode_lower(struct inode *inode); struct inode *ovl_inode_lowerdata(struct inode *inode); struct inode *ovl_inode_real(struct inode *inode); struct inode *ovl_inode_realdata(struct inode *inode); +const char *ovl_lowerdata_redirect(struct inode *inode); struct ovl_dir_cache *ovl_dir_cache(struct inode *inode); void ovl_set_dir_cache(struct inode *inode, struct ovl_dir_cache *cache); void ovl_dentry_set_flag(unsigned long flag, struct dentry *dentry); @@ -656,6 +657,7 @@ struct ovl_inode_params { struct ovl_entry *oe; bool index; char *redirect; + char *lowerdata_redirect; }; void ovl_inode_init(struct inode *inode, struct ovl_inode_params *oip, unsigned long ino, int fsid); |