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-rw-r--r--fs/ntfs/mft.h110
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diff --git a/fs/ntfs/mft.h b/fs/ntfs/mft.h
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--- a/fs/ntfs/mft.h
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-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * mft.h - Defines for mft record handling in NTFS Linux kernel driver.
- * Part of the Linux-NTFS project.
- *
- * Copyright (c) 2001-2004 Anton Altaparmakov
- */
-
-#ifndef _LINUX_NTFS_MFT_H
-#define _LINUX_NTFS_MFT_H
-
-#include <linux/fs.h>
-#include <linux/highmem.h>
-#include <linux/pagemap.h>
-
-#include "inode.h"
-
-extern MFT_RECORD *map_mft_record(ntfs_inode *ni);
-extern void unmap_mft_record(ntfs_inode *ni);
-
-extern MFT_RECORD *map_extent_mft_record(ntfs_inode *base_ni, MFT_REF mref,
- ntfs_inode **ntfs_ino);
-
-static inline void unmap_extent_mft_record(ntfs_inode *ni)
-{
- unmap_mft_record(ni);
- return;
-}
-
-#ifdef NTFS_RW
-
-/**
- * flush_dcache_mft_record_page - flush_dcache_page() for mft records
- * @ni: ntfs inode structure of mft record
- *
- * Call flush_dcache_page() for the page in which an mft record resides.
- *
- * This must be called every time an mft record is modified, just after the
- * modification.
- */
-static inline void flush_dcache_mft_record_page(ntfs_inode *ni)
-{
- flush_dcache_page(ni->page);
-}
-
-extern void __mark_mft_record_dirty(ntfs_inode *ni);
-
-/**
- * mark_mft_record_dirty - set the mft record and the page containing it dirty
- * @ni: ntfs inode describing the mapped mft record
- *
- * Set the mapped (extent) mft record of the (base or extent) ntfs inode @ni,
- * as well as the page containing the mft record, dirty. Also, mark the base
- * vfs inode dirty. This ensures that any changes to the mft record are
- * written out to disk.
- *
- * NOTE: Do not do anything if the mft record is already marked dirty.
- */
-static inline void mark_mft_record_dirty(ntfs_inode *ni)
-{
- if (!NInoTestSetDirty(ni))
- __mark_mft_record_dirty(ni);
-}
-
-extern int ntfs_sync_mft_mirror(ntfs_volume *vol, const unsigned long mft_no,
- MFT_RECORD *m, int sync);
-
-extern int write_mft_record_nolock(ntfs_inode *ni, MFT_RECORD *m, int sync);
-
-/**
- * write_mft_record - write out a mapped (extent) mft record
- * @ni: ntfs inode describing the mapped (extent) mft record
- * @m: mapped (extent) mft record to write
- * @sync: if true, wait for i/o completion
- *
- * This is just a wrapper for write_mft_record_nolock() (see mft.c), which
- * locks the page for the duration of the write. This ensures that there are
- * no race conditions between writing the mft record via the dirty inode code
- * paths and via the page cache write back code paths or between writing
- * neighbouring mft records residing in the same page.
- *
- * Locking the page also serializes us against ->read_folio() if the page is not
- * uptodate.
- *
- * On success, clean the mft record and return 0. On error, leave the mft
- * record dirty and return -errno.
- */
-static inline int write_mft_record(ntfs_inode *ni, MFT_RECORD *m, int sync)
-{
- struct page *page = ni->page;
- int err;
-
- BUG_ON(!page);
- lock_page(page);
- err = write_mft_record_nolock(ni, m, sync);
- unlock_page(page);
- return err;
-}
-
-extern bool ntfs_may_write_mft_record(ntfs_volume *vol,
- const unsigned long mft_no, const MFT_RECORD *m,
- ntfs_inode **locked_ni);
-
-extern ntfs_inode *ntfs_mft_record_alloc(ntfs_volume *vol, const int mode,
- ntfs_inode *base_ni, MFT_RECORD **mrec);
-extern int ntfs_extent_mft_record_free(ntfs_inode *ni, MFT_RECORD *m);
-
-#endif /* NTFS_RW */
-
-#endif /* _LINUX_NTFS_MFT_H */