40 int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh,  in ocfs2_write_block()  argument
45 	trace_ocfs2_write_block((unsigned long long)bh->b_blocknr, ci);  in ocfs2_write_block()
47 	BUG_ON(bh->b_blocknr < OCFS2_SUPER_BLOCK_BLKNO);  in ocfs2_write_block()
48 	BUG_ON(buffer_jbd(bh));  in ocfs2_write_block()
61 	lock_buffer(bh);  in ocfs2_write_block()
62 	set_buffer_uptodate(bh);  in ocfs2_write_block()
65 	clear_buffer_dirty(bh);  in ocfs2_write_block()
67 	get_bh(bh); /* for end_buffer_write_sync() */  in ocfs2_write_block()
68 	bh->b_end_io = end_buffer_write_sync;  in ocfs2_write_block()
69 	submit_bh(REQ_OP_WRITE, 0, bh);  in ocfs2_write_block()
71 	wait_on_buffer(bh);  in ocfs2_write_block()
73 	if (buffer_uptodate(bh)) {  in ocfs2_write_block()
74 		ocfs2_set_buffer_uptodate(ci, bh);  in ocfs2_write_block()
96 	struct buffer_head *bh;  in ocfs2_read_blocks_sync()  local
118 		bh = bhs[i];  in ocfs2_read_blocks_sync()
120 		if (buffer_jbd(bh)) {  in ocfs2_read_blocks_sync()
122 					(unsigned long long)bh->b_blocknr);  in ocfs2_read_blocks_sync()
126 		if (buffer_dirty(bh)) {  in ocfs2_read_blocks_sync()
132 			     (unsigned long long)bh->b_blocknr);  in ocfs2_read_blocks_sync()
136 		lock_buffer(bh);  in ocfs2_read_blocks_sync()
137 		if (buffer_jbd(bh)) {  in ocfs2_read_blocks_sync()
142 			     (unsigned long long)bh->b_blocknr);  in ocfs2_read_blocks_sync()
145 			unlock_buffer(bh);  in ocfs2_read_blocks_sync()
150 		get_bh(bh); /* for end_buffer_read_sync() */  in ocfs2_read_blocks_sync()
151 		bh->b_end_io = end_buffer_read_sync;  in ocfs2_read_blocks_sync()
152 		submit_bh(REQ_OP_READ, 0, bh);  in ocfs2_read_blocks_sync()
157 		bh = bhs[i - 1];  in ocfs2_read_blocks_sync()
160 			if (new_bh && bh) {  in ocfs2_read_blocks_sync()
165 				if (!buffer_jbd(bh))  in ocfs2_read_blocks_sync()
166 					wait_on_buffer(bh);  in ocfs2_read_blocks_sync()
167 				put_bh(bh);  in ocfs2_read_blocks_sync()
169 			} else if (bh && buffer_uptodate(bh)) {  in ocfs2_read_blocks_sync()
170 				clear_buffer_uptodate(bh);  in ocfs2_read_blocks_sync()
176 		if (!buffer_jbd(bh))  in ocfs2_read_blocks_sync()
177 			wait_on_buffer(bh);  in ocfs2_read_blocks_sync()
179 		if (!buffer_uptodate(bh)) {  in ocfs2_read_blocks_sync()
198 				      struct buffer_head *bh))  in ocfs2_read_blocks()  argument
202 	struct buffer_head *bh;  in ocfs2_read_blocks()  local
247 		bh = bhs[i];  in ocfs2_read_blocks()
274 		if (!ignore_cache && !ocfs2_buffer_uptodate(ci, bh)) {  in ocfs2_read_blocks()
276 			     (unsigned long long)bh->b_blocknr,  in ocfs2_read_blocks()
283 		trace_ocfs2_read_blocks_bh((unsigned long long)bh->b_blocknr,  in ocfs2_read_blocks()
284 			ignore_cache, buffer_jbd(bh), buffer_dirty(bh));  in ocfs2_read_blocks()
286 		if (buffer_jbd(bh)) {  in ocfs2_read_blocks()
291 			if (buffer_dirty(bh)) {  in ocfs2_read_blocks()
302 			    && ocfs2_buffer_read_ahead(ci, bh))  in ocfs2_read_blocks()
305 			lock_buffer(bh);  in ocfs2_read_blocks()
306 			if (buffer_jbd(bh)) {  in ocfs2_read_blocks()
310 				     (unsigned long long)bh->b_blocknr);  in ocfs2_read_blocks()
313 				unlock_buffer(bh);  in ocfs2_read_blocks()
324 			    && ocfs2_buffer_uptodate(ci, bh)) {  in ocfs2_read_blocks()
325 				unlock_buffer(bh);  in ocfs2_read_blocks()
329 			get_bh(bh); /* for end_buffer_read_sync() */  in ocfs2_read_blocks()
331 				set_buffer_needs_validate(bh);  in ocfs2_read_blocks()
332 			bh->b_end_io = end_buffer_read_sync;  in ocfs2_read_blocks()
333 			submit_bh(REQ_OP_READ, 0, bh);  in ocfs2_read_blocks()
340 		bh = bhs[i];  in ocfs2_read_blocks()
347 				if (new_bh && bh) {  in ocfs2_read_blocks()
352 					if (!buffer_jbd(bh))  in ocfs2_read_blocks()
353 						wait_on_buffer(bh);  in ocfs2_read_blocks()
354 					put_bh(bh);  in ocfs2_read_blocks()
356 				} else if (bh && buffer_uptodate(bh)) {  in ocfs2_read_blocks()
357 					clear_buffer_uptodate(bh);  in ocfs2_read_blocks()
364 			if (!buffer_jbd(bh))  in ocfs2_read_blocks()
365 				wait_on_buffer(bh);  in ocfs2_read_blocks()
367 			if (!buffer_uptodate(bh)) {  in ocfs2_read_blocks()
375 				clear_buffer_needs_validate(bh);  in ocfs2_read_blocks()
379 			if (buffer_needs_validate(bh)) {  in ocfs2_read_blocks()
383 				BUG_ON(buffer_jbd(bh));  in ocfs2_read_blocks()
384 				clear_buffer_needs_validate(bh);  in ocfs2_read_blocks()
385 				status = validate(sb, bh);  in ocfs2_read_blocks()
394 		ocfs2_set_buffer_uptodate(ci, bh);  in ocfs2_read_blocks()
431 				struct buffer_head *bh)  in ocfs2_write_super_or_backup()  argument
434 	struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;  in ocfs2_write_super_or_backup()
436 	BUG_ON(buffer_jbd(bh));  in ocfs2_write_super_or_backup()
437 	ocfs2_check_super_or_backup(osb->sb, bh->b_blocknr);  in ocfs2_write_super_or_backup()
445 	lock_buffer(bh);  in ocfs2_write_super_or_backup()
446 	set_buffer_uptodate(bh);  in ocfs2_write_super_or_backup()
449 	clear_buffer_dirty(bh);  in ocfs2_write_super_or_backup()
451 	get_bh(bh); /* for end_buffer_write_sync() */  in ocfs2_write_super_or_backup()
452 	bh->b_end_io = end_buffer_write_sync;  in ocfs2_write_super_or_backup()
453 	ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &di->i_check);  in ocfs2_write_super_or_backup()
454 	submit_bh(REQ_OP_WRITE, 0, bh);  in ocfs2_write_super_or_backup()
456 	wait_on_buffer(bh);  in ocfs2_write_super_or_backup()
458 	if (!buffer_uptodate(bh)) {  in ocfs2_write_super_or_backup()