- if (error || (vmf_ret & VM_FAULT_ERROR)) {
- /* keep previous error */
- ops->iomap_end(inode, pos, PAGE_SIZE, 0, flags,
- &iomap);
- } else {
- error = ops->iomap_end(inode, pos, PAGE_SIZE,
- PAGE_SIZE, flags, &iomap);
- }
- }
- unlock_entry:
- if (vmf_ret != VM_FAULT_LOCKED || error)
- put_locked_mapping_entry(mapping, vmf->pgoff, entry);
- out:
- if (error == -ENOMEM)
- return VM_FAULT_OOM | major;
- /* -EBUSY is fine, somebody else faulted on the same PTE */
- if (error < 0 && error != -EBUSY)
- return VM_FAULT_SIGBUS | major;
- if (vmf_ret) {
- WARN_ON_ONCE(error); /* -EBUSY from ops->iomap_end? */
- return vmf_ret;
+ int copied = PAGE_SIZE;
+
+ if (vmf_ret & VM_FAULT_ERROR)
+ copied = 0;
+ /*
+ * The fault is done by now and there's no way back (other
+ * thread may be already happily using PTE we have installed).
+ * Just ignore error from ->iomap_end since we cannot do much
+ * with it.
+ */
+ ops->iomap_end(inode, pos, PAGE_SIZE, copied, flags, &iomap);