13 lines
		
	
	
		
			381 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			13 lines
		
	
	
		
			381 B
		
	
	
	
		
			C
		
	
	
	
	
	
#include <dirent.h>
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struct buf {
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  char b_data[_MAX_BLOCK_SIZE];		     /* ordinary user data */
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  block_t b_blocknr;		/* block number of its (minor) device */
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  char b_count;			/* number of users of this buffer */
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} buf[NR_BUFS];
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/* A block is free if b_dev == NO_DEV. */
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#define INODE_BLOCK        0				 /* inode block */
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#define DIRECTORY_BLOCK    1				 /* directory block */
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