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Diffstat (limited to 'fs/ntfs/runlist.h')
| -rw-r--r-- | fs/ntfs/runlist.h | 88 | 
1 files changed, 0 insertions, 88 deletions
diff --git a/fs/ntfs/runlist.h b/fs/ntfs/runlist.h deleted file mode 100644 index 38de0a375f59..000000000000 --- a/fs/ntfs/runlist.h +++ /dev/null @@ -1,88 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * runlist.h - Defines for runlist handling in NTFS Linux kernel driver. - *	       Part of the Linux-NTFS project. - * - * Copyright (c) 2001-2005 Anton Altaparmakov - * Copyright (c) 2002 Richard Russon - */ - -#ifndef _LINUX_NTFS_RUNLIST_H -#define _LINUX_NTFS_RUNLIST_H - -#include "types.h" -#include "layout.h" -#include "volume.h" - -/** - * runlist_element - in memory vcn to lcn mapping array element - * @vcn:	starting vcn of the current array element - * @lcn:	starting lcn of the current array element - * @length:	length in clusters of the current array element - * - * The last vcn (in fact the last vcn + 1) is reached when length == 0. - * - * When lcn == -1 this means that the count vcns starting at vcn are not - * physically allocated (i.e. this is a hole / data is sparse). - */ -typedef struct {	/* In memory vcn to lcn mapping structure element. */ -	VCN vcn;	/* vcn = Starting virtual cluster number. */ -	LCN lcn;	/* lcn = Starting logical cluster number. */ -	s64 length;	/* Run length in clusters. */ -} runlist_element; - -/** - * runlist - in memory vcn to lcn mapping array including a read/write lock - * @rl:		pointer to an array of runlist elements - * @lock:	read/write spinlock for serializing access to @rl - * - */ -typedef struct { -	runlist_element *rl; -	struct rw_semaphore lock; -} runlist; - -static inline void ntfs_init_runlist(runlist *rl) -{ -	rl->rl = NULL; -	init_rwsem(&rl->lock); -} - -typedef enum { -	LCN_HOLE		= -1,	/* Keep this as highest value or die! */ -	LCN_RL_NOT_MAPPED	= -2, -	LCN_ENOENT		= -3, -	LCN_ENOMEM		= -4, -	LCN_EIO			= -5, -} LCN_SPECIAL_VALUES; - -extern runlist_element *ntfs_runlists_merge(runlist_element *drl, -		runlist_element *srl); - -extern runlist_element *ntfs_mapping_pairs_decompress(const ntfs_volume *vol, -		const ATTR_RECORD *attr, runlist_element *old_rl); - -extern LCN ntfs_rl_vcn_to_lcn(const runlist_element *rl, const VCN vcn); - -#ifdef NTFS_RW - -extern runlist_element *ntfs_rl_find_vcn_nolock(runlist_element *rl, -		const VCN vcn); - -extern int ntfs_get_size_for_mapping_pairs(const ntfs_volume *vol, -		const runlist_element *rl, const VCN first_vcn, -		const VCN last_vcn); - -extern int ntfs_mapping_pairs_build(const ntfs_volume *vol, s8 *dst, -		const int dst_len, const runlist_element *rl, -		const VCN first_vcn, const VCN last_vcn, VCN *const stop_vcn); - -extern int ntfs_rl_truncate_nolock(const ntfs_volume *vol, -		runlist *const runlist, const s64 new_length); - -int ntfs_rl_punch_nolock(const ntfs_volume *vol, runlist *const runlist, -		const VCN start, const s64 length); - -#endif /* NTFS_RW */ - -#endif /* _LINUX_NTFS_RUNLIST_H */  |