fuse: Return EPERM rather than ENOSYS from link()

link() is documented to return EPERM when a filesystem doesn't support
the operation, return that instead.

Link: https://github.com/libfuse/libfuse/issues/925
Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 3805f9b06c9d2df962d786705620102b8de7fa12..1717ae0d086470451919c232449f5b8339d5062c 100644 (file)
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1137,6 +1137,8 @@ static int fuse_link(struct dentry *entry, struct inode *newdir,
        else if (err == -EINTR)
                fuse_invalidate_attr(inode);
 
+       if (err == -ENOSYS)
+               err = -EPERM;
        return err;
 }