Imported reiserfsprogs-3.6.21
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Jeff Mahoney committed
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/*
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* Copyright 1996-2004 by Hans Reiser, licensing governed by
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* reiserfsprogs/README
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*/
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/* nothing abount reiserfs here */
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#ifndef REISERFSPROGS_MISC_H
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#define REISERFSPROGS_MISC_H
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <linux/major.h>
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#if MAJOR_IN_MKDEV
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# include <sys/mkdev.h>
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#elif MAJOR_IN_SYSMACROS
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# include <sys/sysmacros.h>
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#endif
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#include "swab.h"
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#define POSITION_FOUND 8
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#define POSITION_NOT_FOUND 9
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#define INVAL_PTR (void *)-1
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void check_memory_msg(void);
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void die (char * fmt, ...) __attribute__ ((format (printf, 1, 2)));
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void * getmem (int size);
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void *mem_alloc(int size);
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void freemem (void * p);
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void checkmem (char * p, int size);
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void * expandmem (void * p, int size, int by);
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unsigned int get_mem_size (char * p);
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void check_and_free_mem (void);
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char * kdevname (int dev);
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typedef enum mount_flags {
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MF_NOT_MOUNTED = 0x0,
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MF_RO = 0x1,
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MF_RW = 0x2
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} mount_flags_t;
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typedef struct mount_hint {
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char *point; /* Mount point. */
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__u32 psize; /* Mount point buffer size. */
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__u32 flags; /* Mount flags. */
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} mount_hint_t;
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struct mntent *misc_mntent(char *device);
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int misc_device_mounted(char *device);
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void misc_print_credit(FILE *out);
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typedef struct dma_info {
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int fd;
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struct stat st;
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int support_type;
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int dma;
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__u64 speed;
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} dma_info_t;
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int prepare_dma_check(dma_info_t *dma_info);
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int get_dma_info(dma_info_t *dma_info);
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void clean_after_dma_check(int fd, dma_info_t *dma_info);
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int valid_offset( int fd, loff_t offset);
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unsigned long count_blocks (char * filename, int blocksize);
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void print_how_far (FILE * fp, unsigned long *passed, unsigned long total, unsigned int inc, int quiet);
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void print_how_fast (unsigned long total,
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unsigned long passed, int cursor_pos, int reset_time);
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__u32 get_random (void);
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int user_confirmed (FILE * fp, char * q, char * yes);
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extern inline int misc_set_bit (unsigned long long nr, void * addr);
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extern inline int misc_clear_bit (unsigned long long nr, void * addr);
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extern inline int misc_test_bit(unsigned long long nr, const void * addr);
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extern inline unsigned long long misc_find_first_zero_bit (const void *vaddr, unsigned long long size);
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extern inline unsigned long long misc_find_next_zero_bit (const void *vaddr, unsigned long long size, unsigned long long offset);
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extern inline unsigned long long misc_find_next_set_bit(const void *vaddr, unsigned long long size, unsigned long long offset);
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extern inline unsigned long long misc_find_first_set_bit (const void *vaddr, unsigned long long size);
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#define STAT_FIELD_H(Field, Type) \
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inline Type misc_device_##Field(char *device);
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STAT_FIELD_H(mode, mode_t);
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STAT_FIELD_H(rdev, dev_t);
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STAT_FIELD_H(size, off_t);
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STAT_FIELD_H(blocks, blkcnt_t);
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__u16 mask16 (int from, int count);
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__u32 mask32 (int from, int count);
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__u64 mask64 (int from, int count);
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int reiserfs_bin_search (void * key, void * base, __u32 num, int width,
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__u32 *ppos, __compar_fn_t comp_func);
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struct block_handler {
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__u32 blocknr;
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dev_t device;
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};
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int blocklist__is_block_saved (struct block_handler ** base, __u32 * count, __u32 blocknr,
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dev_t device, __u32 * position);
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void blocklist__insert_in_position (void * block_h, void ** base, __u32 * count,
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int elem_size, __u32 * position);
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int blockdev_list_compare (const void * block1, const void * block2);
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#define set_bit_field_XX(XX,vp,val,from,count) \
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{\
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__u##XX * p, tmp;\
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\
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/* make sure that given value can be put in 'count' bits */\
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if (val > (1 << count))\
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die ("set_bit_field: val %d is too big for %d bits", val, count);\
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\
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p = (__u##XX *)vp;\
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tmp = le##XX##_to_cpu (*p);\
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\
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/* clear 'count' bits starting from 'from'-th one */\
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tmp &= ~mask##XX (from, count);\
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\
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/* put given value in proper bits */\
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tmp |= (val << from);\
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\
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*p = cpu_to_le##XX (tmp);\
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}
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#define get_bit_field_XX(XX,vp,from,count) \
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\
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__u##XX * p, tmp;\
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\
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p = (__u##XX *)vp;\
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tmp = le##XX##_to_cpu (*p);\
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\
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/* clear all bits but 'count' bits starting from 'from'-th one */\
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tmp &= mask##XX (from, count);\
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\
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/* get value written in specified bits */\
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tmp >>= from;\
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return tmp;
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#ifndef major
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#define major(rdev) ((rdev)>>8)
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#define minor(rdev) ((rdev) & 0xff)
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#endif /* major */
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#ifndef SCSI_DISK_MAJOR
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#define SCSI_DISK_MAJOR(maj) ((maj) == SCSI_DISK0_MAJOR || \
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((maj) >= SCSI_DISK1_MAJOR && (maj) <= SCSI_DISK7_MAJOR))
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#endif /* SCSI_DISK_MAJOR */
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#ifndef SCSI_BLK_MAJOR
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#define SCSI_BLK_MAJOR(maj) (SCSI_DISK_MAJOR(maj) || (maj) == SCSI_CDROM_MAJOR)
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#endif /* SCSI_BLK_MAJOR */
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#ifndef IDE_DISK_MAJOR
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#ifdef IDE9_MAJOR
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#define IDE_DISK_MAJOR(maj) ((maj) == IDE0_MAJOR || (maj) == IDE1_MAJOR || \
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(maj) == IDE2_MAJOR || (maj) == IDE3_MAJOR || \
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(maj) == IDE4_MAJOR || (maj) == IDE5_MAJOR || \
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(maj) == IDE6_MAJOR || (maj) == IDE7_MAJOR || \
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(maj) == IDE8_MAJOR || (maj) == IDE9_MAJOR)
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#else
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#define IDE_DISK_MAJOR(maj) ((maj) == IDE0_MAJOR || (maj) == IDE1_MAJOR || \
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(maj) == IDE2_MAJOR || (maj) == IDE3_MAJOR || \
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(maj) == IDE4_MAJOR || (maj) == IDE5_MAJOR)
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#endif /* IDE9_MAJOR */
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#endif /* IDE_DISK_MAJOR */
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#endif /* REISERFS_MISC_H */
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