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Lines Matching refs:blkno

117 offtab_read_window(struct offtab *offtab, uint32_t blkno, int read_flags)
119 	const uint32_t window_start = rounddown(blkno, offtab->ot_window_size);
153 offtab_maybe_read_window(struct offtab *offtab, uint32_t blkno, int read_flags)
156 	/* Don't bother if blkno is already in the window.  */
157 	if ((offtab->ot_window_start <= blkno) &&
158 	    (blkno < offtab_current_window_end(offtab)))
161 	if (!offtab_read_window(offtab, blkno, read_flags))
249  * blkno is the last valid blkno read from disk.
252 offtab_transmogrify_read_to_write(struct offtab *offtab, uint32_t blkno)
256 	assert(0 < blkno);
258 	if (!offtab_maybe_read_window(offtab, blkno, OFFTAB_READ_SEEK))
262 	offtab->ot_blkno = blkno;
317  * Do any I/O or bookkeeping necessary to fetch the offset for blkno in
322 offtab_prepare_get(struct offtab *offtab, uint32_t blkno)
326 	assert(blkno < offtab->ot_n_offsets);
328 	if (!offtab_maybe_read_window(offtab, blkno, OFFTAB_READ_SEEK))
331 	assert(offtab->ot_window_start <= blkno);
332 	assert(blkno < offtab_current_window_end(offtab));
334 	offtab->ot_blkno = blkno;
339  * Return the offset for blkno.  Caller must have called
343 offtab_get(struct offtab *offtab, uint32_t blkno)
347 	assert(blkno == offtab->ot_blkno);
348 	assert(offtab->ot_window_start <= blkno);
349 	assert(blkno < offtab_current_window_end(offtab));
351 	return be64toh(offtab->ot_window[blkno - offtab->ot_window_start]);
459  * Do any I/O or bookkeeping necessary to set an offset for blkno.  May
463 offtab_prepare_put(struct offtab *offtab, uint32_t blkno)
468 	assert(blkno < offtab->ot_n_offsets);
476 	    ((offtab->ot_blkno + 1) == blkno));
479 	if ((offtab->ot_window_start <= blkno) &&
480 	    (blkno < offtab_current_window_end(offtab)))
486 	assert(offtab->ot_window_size <= blkno);
487 	assert(offtab->ot_window_start == (blkno - offtab->ot_window_size));
489 	    rounddown(blkno, offtab->ot_window_size));
511 	offtab->ot_window_start = rounddown(blkno, offtab->ot_window_size);
515 win:	assert(offtab->ot_window_start <= blkno);
516 	assert(blkno < offtab_current_window_end(offtab));
518 	offtab->ot_blkno = blkno;
522  * Actually set the offset for blkno.
525 offtab_put(struct offtab *offtab, uint32_t blkno, uint64_t offset)
529 	assert(blkno == offtab->ot_blkno);
530 	assert(offtab->ot_window_start <= blkno);
531 	assert(blkno < offtab_current_window_end(offtab));
533 	offtab->ot_window[blkno - offtab->ot_window_start] = htobe64(offset);