diff options
| author | Mark Brown <broonie@kernel.org> | 2021-05-18 17:24:52 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-05-18 17:24:52 +0100 |
| commit | c37fe6aff89cb0d842993fe2f69e48bf3ebe0ab0 (patch) | |
| tree | 2a322c48218f7006bab789b7bf16ec58b129a096 /fs/cachefiles/bind.c | |
| parent | d7aed20d446d8c87f5e13adf73281056b0064a45 (diff) | |
| parent | d07f6ca923ea0927a1024dfccafc5b53b61cfecc (diff) | |
Merge tag 'v5.13-rc2' into spi-5.13
Linux 5.13-rc2
Diffstat (limited to 'fs/cachefiles/bind.c')
| -rw-r--r-- | fs/cachefiles/bind.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c index dfb14dbddf51..38bb7764b454 100644 --- a/fs/cachefiles/bind.c +++ b/fs/cachefiles/bind.c @@ -118,6 +118,12 @@ static int cachefiles_daemon_add_cache(struct cachefiles_cache *cache) cache->mnt = path.mnt; root = path.dentry; + ret = -EINVAL; + if (mnt_user_ns(path.mnt) != &init_user_ns) { + pr_warn("File cache on idmapped mounts not supported"); + goto error_unsupported; + } + /* check parameters */ ret = -EOPNOTSUPP; if (d_is_negative(root) || |