Merge tag 'exfat-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat

Pull exfat updates from Namjae Jeon:

 - Clean-up unnecessary codes as ->valid_size is supported

 - buffered-IO fallback is no longer needed when using direct-IO

 - Move ->valid_size extension from mmap to ->page_mkwrite. This
   improves the overhead caused by unnecessary zero-out during mmap.

 - Fix memleaks from exfat_load_bitmap() and exfat_create_upcase_table()

 - Add sops->shutdown and ioctl

 - Add Yuezhang Mo as a reviwer

* tag 'exfat-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
  MAINTAINERS: exfat: add myself as reviewer
  exfat: resolve memory leak from exfat_create_upcase_table()
  exfat: move extend valid_size into ->page_mkwrite()
  exfat: fix memory leak in exfat_load_bitmap()
  exfat: Implement sops->shutdown and ioctl
  exfat: do not fallback to buffered write
  exfat: drop ->i_size_ondisk

include/uapi/linux/exfat.h

@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Copyright (C) 2024 Unisoc Technologies Co., Ltd.
+ */
+
+#ifndef _UAPI_LINUX_EXFAT_H
+#define _UAPI_LINUX_EXFAT_H
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/*
+ * exfat-specific ioctl commands
+ */
+
+#define EXFAT_IOC_SHUTDOWN _IOR('X', 125, __u32)
+
+/*
+ * Flags used by EXFAT_IOC_SHUTDOWN
+ */
+
+#define EXFAT_GOING_DOWN_DEFAULT	0x0	/* default with full sync */
+#define EXFAT_GOING_DOWN_FULLSYNC	0x1     /* going down with full sync*/
+#define EXFAT_GOING_DOWN_NOSYNC         0x2     /* going down */
+
+#endif /* _UAPI_LINUX_EXFAT_H */