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| author | Amir Goldstein <amir73il@gmail.com> | 2017-12-28 19:35:21 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2018-01-24 11:26:02 +0100 |
| commit | 03e1c584ffbcb4ce05c3c61b76aceab4c12d6b68 (patch) | |
| tree | e7dcca21c1541c1116c22c89296490d576d34d17 /fs/overlayfs | |
| parent | 05e1f11816d7952ef26cc37fdd6637f834d675a9 (diff) | |
| download | linux-03e1c584ffbcb4ce05c3c61b76aceab4c12d6b68.tar.gz | |
ovl: encode lower file handles
For indexed or lower non-dir, encode a non-connectable lower file handle from origin inode. For indexed or lower dir, when ofs->numlower == 1, encode a lower file handle from lower dir. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs')
| -rw-r--r-- | fs/overlayfs/export.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/fs/overlayfs/export.c b/fs/overlayfs/export.c index 9da498ea75db..8e37a07b9eff 100644 --- a/fs/overlayfs/export.c +++ b/fs/overlayfs/export.c @@ -90,7 +90,6 @@ static int ovl_encode_maybe_copy_up(struct dentry *dentry) static int ovl_d_to_fh(struct dentry *dentry, char *buf, int buflen) { - struct dentry *upper; struct dentry *origin = ovl_dentry_lower(dentry); struct ovl_fh *fh = NULL; int err; @@ -107,13 +106,8 @@ static int ovl_d_to_fh(struct dentry *dentry, char *buf, int buflen) origin = NULL; } - upper = ovl_dentry_upper(dentry); - err = -EACCES; - if (!upper || origin) - goto fail; - - /* TODO: encode non pure-upper by origin */ - fh = ovl_encode_fh(upper, true); + /* Encode an upper or origin file handle */ + fh = ovl_encode_fh(origin ?: ovl_dentry_upper(dentry), !origin); err = -EOVERFLOW; if (fh->len > buflen) |