86 void *hpfs_map_4sectors(struct super_block *s, unsigned secno, struct quad_buffer_head *qbh,  in hpfs_map_4sectors()  argument
102 	if (!(qbh->bh[0] = sb_bread(s, secno + 0))) goto bail0;  in hpfs_map_4sectors()
103 	if (!(qbh->bh[1] = sb_bread(s, secno + 1))) goto bail1;  in hpfs_map_4sectors()
104 	if (!(qbh->bh[2] = sb_bread(s, secno + 2))) goto bail2;  in hpfs_map_4sectors()
105 	if (!(qbh->bh[3] = sb_bread(s, secno + 3))) goto bail3;  in hpfs_map_4sectors()
107 	if (likely(qbh->bh[1]->b_data == qbh->bh[0]->b_data + 1 * 512) &&  in hpfs_map_4sectors()
108 	    likely(qbh->bh[2]->b_data == qbh->bh[0]->b_data + 2 * 512) &&  in hpfs_map_4sectors()
109 	    likely(qbh->bh[3]->b_data == qbh->bh[0]->b_data + 3 * 512)) {  in hpfs_map_4sectors()
110 		return qbh->data = qbh->bh[0]->b_data;  in hpfs_map_4sectors()
113 	qbh->data = data = kmalloc(2048, GFP_NOFS);  in hpfs_map_4sectors()
119 	memcpy(data + 0 * 512, qbh->bh[0]->b_data, 512);  in hpfs_map_4sectors()
120 	memcpy(data + 1 * 512, qbh->bh[1]->b_data, 512);  in hpfs_map_4sectors()
121 	memcpy(data + 2 * 512, qbh->bh[2]->b_data, 512);  in hpfs_map_4sectors()
122 	memcpy(data + 3 * 512, qbh->bh[3]->b_data, 512);  in hpfs_map_4sectors()
127 	brelse(qbh->bh[3]);  in hpfs_map_4sectors()
129 	brelse(qbh->bh[2]);  in hpfs_map_4sectors()
131 	brelse(qbh->bh[1]);  in hpfs_map_4sectors()
133 	brelse(qbh->bh[0]);  in hpfs_map_4sectors()
141                           struct quad_buffer_head *qbh)  in hpfs_get_4sectors()  argument
152 	if (!hpfs_get_sector(s, secno + 0, &qbh->bh[0])) goto bail0;  in hpfs_get_4sectors()
153 	if (!hpfs_get_sector(s, secno + 1, &qbh->bh[1])) goto bail1;  in hpfs_get_4sectors()
154 	if (!hpfs_get_sector(s, secno + 2, &qbh->bh[2])) goto bail2;  in hpfs_get_4sectors()
155 	if (!hpfs_get_sector(s, secno + 3, &qbh->bh[3])) goto bail3;  in hpfs_get_4sectors()
157 	if (likely(qbh->bh[1]->b_data == qbh->bh[0]->b_data + 1 * 512) &&  in hpfs_get_4sectors()
158 	    likely(qbh->bh[2]->b_data == qbh->bh[0]->b_data + 2 * 512) &&  in hpfs_get_4sectors()
159 	    likely(qbh->bh[3]->b_data == qbh->bh[0]->b_data + 3 * 512)) {  in hpfs_get_4sectors()
160 		return qbh->data = qbh->bh[0]->b_data;  in hpfs_get_4sectors()
163 	if (!(qbh->data = kmalloc(2048, GFP_NOFS))) {  in hpfs_get_4sectors()
167 	return qbh->data;  in hpfs_get_4sectors()
170 	brelse(qbh->bh[3]);  in hpfs_get_4sectors()
172 	brelse(qbh->bh[2]);  in hpfs_get_4sectors()
174 	brelse(qbh->bh[1]);  in hpfs_get_4sectors()
176 	brelse(qbh->bh[0]);  in hpfs_get_4sectors()
182 void hpfs_brelse4(struct quad_buffer_head *qbh)  in hpfs_brelse4()  argument
184 	if (unlikely(qbh->data != qbh->bh[0]->b_data))  in hpfs_brelse4()
185 		kfree(qbh->data);  in hpfs_brelse4()
186 	brelse(qbh->bh[0]);  in hpfs_brelse4()
187 	brelse(qbh->bh[1]);  in hpfs_brelse4()
188 	brelse(qbh->bh[2]);  in hpfs_brelse4()
189 	brelse(qbh->bh[3]);  in hpfs_brelse4()
192 void hpfs_mark_4buffers_dirty(struct quad_buffer_head *qbh)  in hpfs_mark_4buffers_dirty()  argument
194 	if (unlikely(qbh->data != qbh->bh[0]->b_data)) {  in hpfs_mark_4buffers_dirty()
195 		memcpy(qbh->bh[0]->b_data, qbh->data + 0 * 512, 512);  in hpfs_mark_4buffers_dirty()
196 		memcpy(qbh->bh[1]->b_data, qbh->data + 1 * 512, 512);  in hpfs_mark_4buffers_dirty()
197 		memcpy(qbh->bh[2]->b_data, qbh->data + 2 * 512, 512);  in hpfs_mark_4buffers_dirty()
198 		memcpy(qbh->bh[3]->b_data, qbh->data + 3 * 512, 512);  in hpfs_mark_4buffers_dirty()
200 	mark_buffer_dirty(qbh->bh[0]);  in hpfs_mark_4buffers_dirty()
201 	mark_buffer_dirty(qbh->bh[1]);  in hpfs_mark_4buffers_dirty()
202 	mark_buffer_dirty(qbh->bh[2]);  in hpfs_mark_4buffers_dirty()
203 	mark_buffer_dirty(qbh->bh[3]);  in hpfs_mark_4buffers_dirty()