diff options
| author | Amir Goldstein <amir73il@gmail.com> | 2023-04-02 21:56:49 +0300 |
|---|---|---|
| committer | Amir Goldstein <amir73il@gmail.com> | 2023-06-19 14:01:14 +0300 |
| commit | 416656447864ef0fc2430525499f52a4a370a0ab (patch) | |
| tree | a846326abea45b0377037ab32220364df3d98702 /fs/overlayfs/util.c | |
| parent | 2b21da920866ad20b5e3119f3b8d2267774b7b0a (diff) | |
| download | linux-416656447864ef0fc2430525499f52a4a370a0ab.tar.xz | |
ovl: prepare for lazy lookup of lowerdata inode
Make the code handle the case of numlower > 1 and missing lowerdata
dentry gracefully.
Missing lowerdata dentry is an indication for lazy lookup of lowerdata
and in that case the lowerdata_redirect path is stored in ovl_inode.
Following commits will defer lookup and perform the lazy lookup on
access.
Reviewed-by: Alexander Larsson <alexl@redhat.com>
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 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index 72f565f640fa..23c0224779be 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -159,7 +159,7 @@ void ovl_dentry_init_flags(struct dentry *dentry, struct dentry *upperdentry, if (upperdentry) flags |= upperdentry->d_flags; - for (i = 0; i < ovl_numlower(oe); i++) + for (i = 0; i < ovl_numlower(oe) && lowerstack[i].dentry; i++) flags |= lowerstack[i].dentry->d_flags; spin_lock(&dentry->d_lock); |