file_systems/ext2/BitmapBlock.cpp

64 BitmapBlock::_Check(uint32 start, uint32 length, bool marked)
70 	if (start + length > fNumBits)
72 	if (length == 0)
77 	uint32 remainingBits = (length + startBit) & 0x1F;
81 	if (length < 32) {
82 		if (startBit + length < 32) {
85 			uint32 mask = (1 << (startBit + length)) - 1;
92 		iterations = (length - 32 + startBit) >> 5;
135 BitmapBlock::_Update(uint32 start, uint32 length, bool mark, bool force)
138 		start, length, mark ? 't' : 'f', force ? 't' : 'f');
140 	if (fData == NULL || start + length > fNumBits)
145 	uint32 remainingBits = (length + startBit) & 0x1F;
152 	if (length < 32) {
153 		if (startBit + length < 32) {
157 			uint32 mask = (1 << (startBit + length)) - 1;
181 		iterations = (length - 32 + startBit) >> 5;
373 BitmapBlock::FindLargestUnmarkedRange(uint32& start, uint32& length)
379 	uint32 wordSpan = length >> 5;
386 		B_PRIu32 ", bits: %" B_PRIx32 ", start: %" B_PRIu32 ", length: %"
388 		length);
403 				if (newLength > length) {
405 					length = newLength;
407 						"larger length %" B_PRIu32 " starting at %" B_PRIu32
408 						"\n", length, start);
421 		wordSpan = length >> 5;
454 				if (newLength > length) {
456 					length = newLength;
457 					wordSpan = length >> 5;
460 						"larger length %" B_PRIu32 " starting at %" B_PRIu32
461 						"; word span: %" B_PRIu32 "\n", length, start,
478 			", word span: %" B_PRIu32 ", new length: %" B_PRIu32
497 				"to %" B_PRIu32 " and new length to %" B_PRIu32 "\n", newStart,
508 		TRACE("BitmapBlock::FindLargestUnmarkedRange(): updated new length to "
511 		if (newLength > length) {
513 			length = newLength;
515 				"largest length %" B_PRIu32 " starting at %" B_PRIu32 "\n",
516 				length, start);