diff options
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/namei.c b/fs/namei.c index 6795600c5738..1eb20cb5e58f 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1388,6 +1388,10 @@ static int follow_automount(struct path *path, int *count, unsigned lookup_flags dentry->d_inode) return -EISDIR; + /* No need to trigger automounts if mountpoint crossing is disabled. */ + if (lookup_flags & LOOKUP_NO_XDEV) + return -EXDEV; + if (count && (*count)++ >= MAXSYMLINKS) return -ELOOP; @@ -1411,6 +1415,10 @@ static int __traverse_mounts(struct path *path, unsigned flags, bool *jumped, /* Allow the filesystem to manage the transit without i_mutex * being held. */ if (flags & DCACHE_MANAGE_TRANSIT) { + if (lookup_flags & LOOKUP_NO_XDEV) { + ret = -EXDEV; + break; + } ret = path->dentry->d_op->d_manage(path, false); flags = smp_load_acquire(&path->dentry->d_flags); if (ret < 0) |