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| author | Amir Goldstein <amir73il@gmail.com> | 2017-11-08 19:39:51 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2018-04-12 12:04:50 +0200 |
| commit | da309e8c055de8d6461ae01764a3352c77878735 (patch) | |
| tree | 15c31ab13375f887e3fed4847611707856270c1a /fs/overlayfs/util.c | |
| parent | 8f35cf51cd24a08e3d5b97e7253c93a5c90a4c1e (diff) | |
ovl: factor out ovl_map_dev_ino() helper
A helper for ovl_getattr() to map the values of st_dev and st_ino
according to constant st_ino rules.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/util.c')
| -rw-r--r-- | fs/overlayfs/util.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index 493f9b76fbf6..5042293d2078 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -172,6 +172,13 @@ struct dentry *ovl_dentry_lower(struct dentry *dentry) return oe->numlower ? oe->lowerstack[0].dentry : NULL; } +struct ovl_layer *ovl_layer_lower(struct dentry *dentry) +{ + struct ovl_entry *oe = dentry->d_fsdata; + + return oe->numlower ? oe->lowerstack[0].layer : NULL; +} + struct dentry *ovl_dentry_real(struct dentry *dentry) { return ovl_dentry_upper(dentry) ?: ovl_dentry_lower(dentry); |