726 			mmap_read_unlock(pages->source_mm);  in pfn_reader_user_destroy()
727 		if (pages->source_mm != current->mm)  in pfn_reader_user_destroy()
728 			mmput(pages->source_mm);  in pfn_reader_user_destroy()
741 	bool remote_mm = pages->source_mm != current->mm;  in pfn_reader_user_pin()
766 			if (!mmget_not_zero(pages->source_mm))  in pfn_reader_user_pin()
785 			mmap_read_lock(pages->source_mm);  in pfn_reader_user_pin()
788 		rc = pin_user_pages_remote(pages->source_mm, uptr, npages,  in pfn_reader_user_pin()
837 		mmap_read_unlock(pages->source_mm);  in update_mm_locked_vm()
841 		   pages->source_mm != current->mm) {  in update_mm_locked_vm()
842 		if (!mmget_not_zero(pages->source_mm))  in update_mm_locked_vm()
847 	mmap_write_lock(pages->source_mm);  in update_mm_locked_vm()
848 	rc = __account_locked_vm(pages->source_mm, npages, inc,  in update_mm_locked_vm()
850 	mmap_write_unlock(pages->source_mm);  in update_mm_locked_vm()
853 		mmput(pages->source_mm);  in update_mm_locked_vm()
880 		atomic64_add(npages, &pages->source_mm->pinned_vm);  in do_update_pinned()
882 		atomic64_sub(npages, &pages->source_mm->pinned_vm);  in do_update_pinned()
1164 	pages->source_mm = current->mm;  in iopt_alloc_pages()
1165 	mmgrab(pages->source_mm);  in iopt_alloc_pages()
1189 	mmdrop(pages->source_mm);  in iopt_release_pages()
1791 	if (!mmget_not_zero(pages->source_mm))  in iopt_pages_rw_page()
1800 	mmap_read_lock(pages->source_mm);  in iopt_pages_rw_page()
1802 		pages->source_mm, (uintptr_t)(pages->uptr + index * PAGE_SIZE),  in iopt_pages_rw_page()
1805 	mmap_read_unlock(pages->source_mm);  in iopt_pages_rw_page()
1816 	mmput(pages->source_mm);  in iopt_pages_rw_page()
1836 	bool change_mm = current->mm != pages->source_mm;  in iopt_pages_rw_access()
1861 		if (!mmget_not_zero(pages->source_mm))  in iopt_pages_rw_access()
1866 		kthread_use_mm(pages->source_mm);  in iopt_pages_rw_access()
1878 		kthread_unuse_mm(pages->source_mm);  in iopt_pages_rw_access()
1879 		mmput(pages->source_mm);  in iopt_pages_rw_access()