/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2018-2023 Oracle. All Rights Reserved. * Author: Darrick J. Wong <djwong@kernel.org> */ #ifndef __XFS_SCRUB_XFILE_H__ #define __XFS_SCRUB_XFILE_H__ struct xfile { struct file *file; }; int xfile_create(const char *description, loff_t isize, struct xfile **xfilep); void xfile_destroy(struct xfile *xf); int xfile_load(struct xfile *xf, void *buf, size_t count, loff_t pos); int xfile_store(struct xfile *xf, const void *buf, size_t count, loff_t pos); void xfile_discard(struct xfile *xf, loff_t pos, u64 count); loff_t xfile_seek_data(struct xfile *xf, loff_t pos); #define XFILE_MAX_FOLIO_SIZE (PAGE_SIZE << MAX_PAGECACHE_ORDER) #define XFILE_ALLOC (1 << 0) /* allocate folio if not present */ struct folio *xfile_get_folio(struct xfile *xf, loff_t offset, size_t len, unsigned int flags); void xfile_put_folio(struct xfile *xf, struct folio *folio); static inline unsigned long long xfile_bytes(struct xfile *xf) { return file_inode(xf->file)->i_blocks << SECTOR_SHIFT; } #endif /* __XFS_SCRUB_XFILE_H__ */