45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
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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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#ifndef REISERFS_BUFFER_H
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#define REISERFS_BUFFER_H
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#include "reiserfs/types.h"
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#define BH_Uptodate 0
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#define BH_Dirty 1
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#define BH_Lock 2
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#define BH_Do_not_flush 3
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#define reiserfs_buffer_uptodate(bh) misc_test_bit(BH_Uptodate, &(bh)->b_state)
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#define reiserfs_buffer_mkuptodate(bh,i) misc_set_bit(BH_Uptodate, &(bh)->b_state)
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#define reiserfs_buffer_isdirty(bh) misc_test_bit(BH_Dirty, &(bh)->b_state)
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#define reiserfs_buffer_isclean(bh) !misc_test_bit(BH_Dirty, &(bh)->b_state)
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#define reiserfs_buffer_mkdirty(bh) misc_set_bit(BH_Dirty, &(bh)->b_state)
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#define reiserfs_buffer_mkclean(bh) misc_clear_bit(BH_Dirty, &(bh)->b_state)
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#define reiserfs_buffer_noflush(bh) misc_test_bit(BH_Do_not_flush, &(bh)->b_state)
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#define reiserfs_buffer_mknoflush(bh) misc_set_bit(BH_Do_not_flush, &(bh)->b_state)
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#define reiserfs_buffer_clnoflush(bh) misc_clear_bit(BH_Do_not_flush, &(bh)->b_state)
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extern reiserfs_bh_t * reiserfs_buffer_open (int, unsigned long, unsigned long);
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extern reiserfs_bh_t * reiserfs_buffer_find (int, unsigned long, unsigned long);
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extern reiserfs_bh_t * reiserfs_buffer_read (int, unsigned long, unsigned long);
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extern int reiserfs_buffer_write (reiserfs_bh_t *);
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extern void reiserfs_buffer_close (reiserfs_bh_t *);
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extern void reiserfs_buffer_forget (reiserfs_bh_t *);
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extern void reiserfs_buffer_flush_all(int);
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extern void reiserfs_buffer_free_all (void);
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extern void reiserfs_buffer_invalidate_all (int);
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#endif
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