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-rw-r--r--fs/overlayfs/util.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index edc9216f6e27..9aa7493b1e10 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -65,7 +65,12 @@ const struct cred *ovl_override_creds(struct super_block *sb)
{
struct ovl_fs *ofs = OVL_FS(sb);
- return override_creds(ofs->creator_cred);
+ return override_creds_light(ofs->creator_cred);
+}
+
+void ovl_revert_creds(const struct cred *old_cred)
+{
+ revert_creds_light(old_cred);
}
/*
@@ -197,6 +202,9 @@ void ovl_dentry_init_flags(struct dentry *dentry, struct dentry *upperdentry,
bool ovl_dentry_weird(struct dentry *dentry)
{
+ if (!d_can_lookup(dentry) && !d_is_file(dentry) && !d_is_symlink(dentry))
+ return true;
+
return dentry->d_flags & (DCACHE_NEED_AUTOMOUNT |
DCACHE_MANAGE_TRANSIT |
DCACHE_OP_HASH |
@@ -1178,7 +1186,7 @@ int ovl_nlink_start(struct dentry *dentry)
* value relative to the upper inode nlink in an upper inode xattr.
*/
err = ovl_set_nlink_upper(dentry);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
if (err)
goto out_drop_write;
@@ -1203,7 +1211,7 @@ void ovl_nlink_end(struct dentry *dentry)
old_cred = ovl_override_creds(dentry->d_sb);
ovl_cleanup_index(dentry);
- revert_creds(old_cred);
+ ovl_revert_creds(old_cred);
}
ovl_inode_unlock(inode);