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| author | Ingo Molnar <mingo@kernel.org> | 2021-03-29 15:56:48 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-03-29 15:56:48 +0200 |
| commit | feecb81732d8f271440d907beb082425e109f877 (patch) | |
| tree | af55ca33d43cf3b3c2b82e9860df7d01be061a0f /fs/cachefiles/bind.c | |
| parent | bd9a5fc2edb0bdcb0756298daa31ddd6a02f0634 (diff) | |
| parent | a5e13c6df0e41702d2b2c77c8ad41677ebb065b3 (diff) | |
Merge tag 'v5.12-rc5' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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) || |