| /* |
| * Copyright 1996-2004 by Hans Reiser, licensing governed by |
| * reiserfsprogs/README |
| */ |
| |
| #ifndef REISERFS_BUFFER_H |
| #define REISERFS_BUFFER_H |
| |
| #include "reiserfs/types.h" |
| |
| #define BH_Uptodate 0 |
| #define BH_Dirty 1 |
| #define BH_Lock 2 |
| #define BH_Do_not_flush 3 |
| |
| #define reiserfs_buffer_uptodate(bh) misc_test_bit(BH_Uptodate, &(bh)->b_state) |
| #define reiserfs_buffer_mkuptodate(bh,i) misc_set_bit(BH_Uptodate, &(bh)->b_state) |
| |
| #define reiserfs_buffer_isdirty(bh) misc_test_bit(BH_Dirty, &(bh)->b_state) |
| #define reiserfs_buffer_isclean(bh) !misc_test_bit(BH_Dirty, &(bh)->b_state) |
| #define reiserfs_buffer_mkdirty(bh) misc_set_bit(BH_Dirty, &(bh)->b_state) |
| #define reiserfs_buffer_mkclean(bh) misc_clear_bit(BH_Dirty, &(bh)->b_state) |
| |
| #define reiserfs_buffer_noflush(bh) misc_test_bit(BH_Do_not_flush, &(bh)->b_state) |
| #define reiserfs_buffer_mknoflush(bh) misc_set_bit(BH_Do_not_flush, &(bh)->b_state) |
| #define reiserfs_buffer_clnoflush(bh) misc_clear_bit(BH_Do_not_flush, &(bh)->b_state) |
| |
| extern reiserfs_bh_t * reiserfs_buffer_open (int, unsigned long, unsigned long); |
| extern reiserfs_bh_t * reiserfs_buffer_find (int, unsigned long, unsigned long); |
| extern reiserfs_bh_t * reiserfs_buffer_read (int, unsigned long, unsigned long); |
| |
| extern int reiserfs_buffer_write (reiserfs_bh_t *); |
| |
| extern void reiserfs_buffer_close (reiserfs_bh_t *); |
| |
| extern void reiserfs_buffer_forget (reiserfs_bh_t *); |
| |
| extern void reiserfs_buffer_flush_all(int); |
| |
| extern void reiserfs_buffer_free_all (void); |
| |
| extern void reiserfs_buffer_invalidate_all (int); |
| |
| #endif |
