struct filename *filename;
};
+struct io_mkdir {
+ struct file *file;
+ int dfd;
+ umode_t mode;
+ struct filename *filename;
+};
+
struct io_completion {
struct file *file;
u32 cflags;
struct io_shutdown shutdown;
struct io_rename rename;
struct io_unlink unlink;
+ struct io_mkdir mkdir;
/* use only after cleaning per-op data, see io_clean_op() */
struct io_completion compl;
};
},
[IORING_OP_RENAMEAT] = {},
[IORING_OP_UNLINKAT] = {},
+ [IORING_OP_MKDIRAT] = {},
};
/* requests with any of those set should undergo io_disarm_next() */
return 0;
}
+static int io_mkdirat_prep(struct io_kiocb *req,
+ const struct io_uring_sqe *sqe)
+{
+ struct io_mkdir *mkd = &req->mkdir;
+ const char __user *fname;
+
+ if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
+ return -EINVAL;
+ if (sqe->ioprio || sqe->off || sqe->rw_flags || sqe->buf_index ||
+ sqe->splice_fd_in)
+ return -EINVAL;
+ if (unlikely(req->flags & REQ_F_FIXED_FILE))
+ return -EBADF;
+
+ mkd->dfd = READ_ONCE(sqe->fd);
+ mkd->mode = READ_ONCE(sqe->len);
+
+ fname = u64_to_user_ptr(READ_ONCE(sqe->addr));
+ mkd->filename = getname(fname);
+ if (IS_ERR(mkd->filename))
+ return PTR_ERR(mkd->filename);
+
+ req->flags |= REQ_F_NEED_CLEANUP;
+ return 0;
+}
+
+static int io_mkdirat(struct io_kiocb *req, int issue_flags)
+{
+ struct io_mkdir *mkd = &req->mkdir;
+ int ret;
+
+ if (issue_flags & IO_URING_F_NONBLOCK)
+ return -EAGAIN;
+
+ ret = do_mkdirat(mkd->dfd, mkd->filename, mkd->mode);
+
+ req->flags &= ~REQ_F_NEED_CLEANUP;
+ if (ret < 0)
+ req_set_fail(req);
+ io_req_complete(req, ret);
+ return 0;
+}
+
static int io_shutdown_prep(struct io_kiocb *req,
const struct io_uring_sqe *sqe)
{
return io_renameat_prep(req, sqe);
case IORING_OP_UNLINKAT:
return io_unlinkat_prep(req, sqe);
+ case IORING_OP_MKDIRAT:
+ return io_mkdirat_prep(req, sqe);
}
printk_once(KERN_WARNING "io_uring: unhandled opcode %d\n",
case IORING_OP_UNLINKAT:
putname(req->unlink.filename);
break;
+ case IORING_OP_MKDIRAT:
+ putname(req->mkdir.filename);
+ break;
}
}
if ((req->flags & REQ_F_POLLED) && req->apoll) {
case IORING_OP_UNLINKAT:
ret = io_unlinkat(req, issue_flags);
break;
+ case IORING_OP_MKDIRAT:
+ ret = io_mkdirat(req, issue_flags);
+ break;
default:
ret = -EINVAL;
break;