17 lines
685 B
C
17 lines
685 B
C
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struct buf {
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/* Data portion of the buffer. */
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union fsdata_u *bp;
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/* Header portion of the buffer. */
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struct buf *b_next; /* used to link all free bufs in a chain */
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struct buf *b_prev; /* used to link all free bufs the other way */
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struct buf *b_hash; /* used to link bufs on hash chains */
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block_t b_blocknr; /* block number of its (minor) device */
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dev_t b_dev; /* major | minor device where block resides */
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char b_dirt; /* CLEAN or DIRTY */
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char b_count; /* number of users of this buffer */
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int b_bytes; /* Number of bytes allocated in bp */
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};
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