753 static void warn_dirty_buffer(struct buffer_head *bh)  in warn_dirty_buffer()  argument
761 	       bdevname(bh->b_bdev, b), (unsigned long long)bh->b_blocknr);  in warn_dirty_buffer()
778 	struct buffer_head *bh;  in do_get_write_access()  local
794 	bh = jh2bh(jh);  in do_get_write_access()
799 	lock_buffer(bh);  in do_get_write_access()
800 	jbd_lock_bh_state(bh);  in do_get_write_access()
805 		trace_jbd2_lock_buffer_stall(bh->b_bdev->bd_dev,  in do_get_write_access()
821 	if (buffer_dirty(bh)) {  in do_get_write_access()
834 			warn_dirty_buffer(bh);  in do_get_write_access()
842 		clear_buffer_dirty(bh);  in do_get_write_access()
843 		set_buffer_jbddirty(bh);  in do_get_write_access()
846 	unlock_buffer(bh);  in do_get_write_access()
850 		jbd_unlock_bh_state(bh);  in do_get_write_access()
897 		if (buffer_shadow(bh)) {  in do_get_write_access()
899 			jbd_unlock_bh_state(bh);  in do_get_write_access()
900 			wait_on_bit_io(&bh->b_state, BH_Shadow,  in do_get_write_access()
923 				jbd_unlock_bh_state(bh);  in do_get_write_access()
933 					jbd_lock_bh_state(bh);  in do_get_write_access()
983 	jbd_unlock_bh_state(bh);  in do_get_write_access()
993 		jbd2_free(frozen_buffer, bh->b_size);  in do_get_write_access()
1010 int jbd2_journal_get_write_access(handle_t *handle, struct buffer_head *bh)  in jbd2_journal_get_write_access()  argument
1012 	struct journal_head *jh = jbd2_journal_add_journal_head(bh);  in jbd2_journal_get_write_access()
1043 int jbd2_journal_get_create_access(handle_t *handle, struct buffer_head *bh)  in jbd2_journal_get_create_access()  argument
1047 	struct journal_head *jh = jbd2_journal_add_journal_head(bh);  in jbd2_journal_get_create_access()
1065 	jbd_lock_bh_state(bh);  in jbd2_journal_get_create_access()
1099 	jbd_unlock_bh_state(bh);  in jbd2_journal_get_create_access()
1141 int jbd2_journal_get_undo_access(handle_t *handle, struct buffer_head *bh)  in jbd2_journal_get_undo_access()  argument
1144 	struct journal_head *jh = jbd2_journal_add_journal_head(bh);  in jbd2_journal_get_undo_access()
1169 	jbd_lock_bh_state(bh);  in jbd2_journal_get_undo_access()
1175 			jbd_unlock_bh_state(bh);  in jbd2_journal_get_undo_access()
1181 		memcpy(jh->b_committed_data, bh->b_data, bh->b_size);  in jbd2_journal_get_undo_access()
1183 	jbd_unlock_bh_state(bh);  in jbd2_journal_get_undo_access()
1187 		jbd2_free(committed_data, bh->b_size);  in jbd2_journal_get_undo_access()
1202 void jbd2_journal_set_triggers(struct buffer_head *bh,  in jbd2_journal_set_triggers()  argument
1205 	struct journal_head *jh = jbd2_journal_grab_journal_head(bh);  in jbd2_journal_set_triggers()
1216 	struct buffer_head *bh = jh2bh(jh);  in jbd2_buffer_frozen_trigger()  local
1221 	triggers->t_frozen(triggers, bh, mapped_data, bh->b_size);  in jbd2_buffer_frozen_trigger()
1258 int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)  in jbd2_journal_dirty_metadata()  argument
1268 	jh = jbd2_journal_grab_journal_head(bh);  in jbd2_journal_dirty_metadata()
1276 	jbd_lock_bh_state(bh);  in jbd2_journal_dirty_metadata()
1307 			       (unsigned long long) bh->b_blocknr,  in jbd2_journal_dirty_metadata()
1318 	set_buffer_jbddirty(bh);  in jbd2_journal_dirty_metadata()
1337 			       (unsigned long long) bh->b_blocknr,  in jbd2_journal_dirty_metadata()
1362 	jbd_unlock_bh_state(bh);  in jbd2_journal_dirty_metadata()
1386 int jbd2_journal_forget (handle_t *handle, struct buffer_head *bh)  in jbd2_journal_forget()  argument
1399 	BUFFER_TRACE(bh, "entry");  in jbd2_journal_forget()
1401 	jbd_lock_bh_state(bh);  in jbd2_journal_forget()
1403 	if (!buffer_jbd(bh))  in jbd2_journal_forget()
1405 	jh = bh2jh(bh);  in jbd2_journal_forget()
1430 		clear_buffer_dirty(bh);  in jbd2_journal_forget()
1431 		clear_buffer_jbddirty(bh);  in jbd2_journal_forget()
1460 			if (!buffer_jbd(bh)) {  in jbd2_journal_forget()
1462 				jbd_unlock_bh_state(bh);  in jbd2_journal_forget()
1463 				__bforget(bh);  in jbd2_journal_forget()
1493 	jbd_unlock_bh_state(bh);  in jbd2_journal_forget()
1494 	__brelse(bh);  in jbd2_journal_forget()
1748 	struct buffer_head *bh = jh2bh(jh);  in __jbd2_journal_temp_unlink_buffer()  local
1750 	J_ASSERT_JH(jh, jbd_is_locked_bh_state(bh));  in __jbd2_journal_temp_unlink_buffer()
1780 	if (test_clear_buffer_jbddirty(bh))  in __jbd2_journal_temp_unlink_buffer()
1781 		mark_buffer_dirty(bh);	/* Expose it to the VM */  in __jbd2_journal_temp_unlink_buffer()
1800 	struct buffer_head *bh = jh2bh(jh);  in jbd2_journal_unfile_buffer()  local
1803 	get_bh(bh);  in jbd2_journal_unfile_buffer()
1804 	jbd_lock_bh_state(bh);  in jbd2_journal_unfile_buffer()
1808 	jbd_unlock_bh_state(bh);  in jbd2_journal_unfile_buffer()
1809 	__brelse(bh);  in jbd2_journal_unfile_buffer()
1818 __journal_try_to_free_buffer(journal_t *journal, struct buffer_head *bh)  in __journal_try_to_free_buffer()  argument
1822 	jh = bh2jh(bh);  in __journal_try_to_free_buffer()
1824 	if (buffer_locked(bh) || buffer_dirty(bh))  in __journal_try_to_free_buffer()
1883 	struct buffer_head *bh;  in jbd2_journal_try_to_free_buffers()  local
1889 	bh = head;  in jbd2_journal_try_to_free_buffers()
1898 		jh = jbd2_journal_grab_journal_head(bh);  in jbd2_journal_try_to_free_buffers()
1902 		jbd_lock_bh_state(bh);  in jbd2_journal_try_to_free_buffers()
1903 		__journal_try_to_free_buffer(journal, bh);  in jbd2_journal_try_to_free_buffers()
1905 		jbd_unlock_bh_state(bh);  in jbd2_journal_try_to_free_buffers()
1906 		if (buffer_jbd(bh))  in jbd2_journal_try_to_free_buffers()
1908 	} while ((bh = bh->b_this_page) != head);  in jbd2_journal_try_to_free_buffers()
1931 	struct buffer_head *bh = jh2bh(jh);  in __dispose_buffer()  local
1941 		clear_buffer_dirty(bh);  in __dispose_buffer()
1998 static int journal_unmap_buffer(journal_t *journal, struct buffer_head *bh,  in journal_unmap_buffer()  argument
2005 	BUFFER_TRACE(bh, "entry");  in journal_unmap_buffer()
2013 	if (!buffer_jbd(bh))  in journal_unmap_buffer()
2018 	jbd_lock_bh_state(bh);  in journal_unmap_buffer()
2021 	jh = jbd2_journal_grab_journal_head(bh);  in journal_unmap_buffer()
2059 		if (!buffer_dirty(bh)) {  in journal_unmap_buffer()
2089 				clear_buffer_jbddirty(bh);  in journal_unmap_buffer()
2103 			jbd_unlock_bh_state(bh);  in journal_unmap_buffer()
2113 		set_buffer_freed(bh);  in journal_unmap_buffer()
2114 		if (journal->j_running_transaction && buffer_jbddirty(bh))  in journal_unmap_buffer()
2118 		jbd_unlock_bh_state(bh);  in journal_unmap_buffer()
2146 	jbd_unlock_bh_state(bh);  in journal_unmap_buffer()
2149 	clear_buffer_dirty(bh);  in journal_unmap_buffer()
2150 	J_ASSERT_BH(bh, !buffer_jbddirty(bh));  in journal_unmap_buffer()
2151 	clear_buffer_mapped(bh);  in journal_unmap_buffer()
2152 	clear_buffer_req(bh);  in journal_unmap_buffer()
2153 	clear_buffer_new(bh);  in journal_unmap_buffer()
2154 	clear_buffer_delay(bh);  in journal_unmap_buffer()
2155 	clear_buffer_unwritten(bh);  in journal_unmap_buffer()
2156 	bh->b_bdev = NULL;  in journal_unmap_buffer()
2177 	struct buffer_head *head, *bh, *next;  in jbd2_journal_invalidatepage()  local
2195 	head = bh = page_buffers(page);  in jbd2_journal_invalidatepage()
2197 		unsigned int next_off = curr_off + bh->b_size;  in jbd2_journal_invalidatepage()
2198 		next = bh->b_this_page;  in jbd2_journal_invalidatepage()
2205 			lock_buffer(bh);  in jbd2_journal_invalidatepage()
2206 			ret = journal_unmap_buffer(journal, bh, partial_page);  in jbd2_journal_invalidatepage()
2207 			unlock_buffer(bh);  in jbd2_journal_invalidatepage()
2213 		bh = next;  in jbd2_journal_invalidatepage()
2215 	} while (bh != head);  in jbd2_journal_invalidatepage()
2232 	struct buffer_head *bh = jh2bh(jh);  in __jbd2_journal_file_buffer()  local
2234 	J_ASSERT_JH(jh, jbd_is_locked_bh_state(bh));  in __jbd2_journal_file_buffer()
2253 		if (buffer_dirty(bh))  in __jbd2_journal_file_buffer()
2254 			warn_dirty_buffer(bh);  in __jbd2_journal_file_buffer()
2255 		if (test_clear_buffer_dirty(bh) ||  in __jbd2_journal_file_buffer()
2256 		    test_clear_buffer_jbddirty(bh))  in __jbd2_journal_file_buffer()
2263 		jbd2_journal_grab_journal_head(bh);  in __jbd2_journal_file_buffer()
2290 		set_buffer_jbddirty(bh);  in __jbd2_journal_file_buffer()
2317 	struct buffer_head *bh = jh2bh(jh);  in __jbd2_journal_refile_buffer()  local
2319 	J_ASSERT_JH(jh, jbd_is_locked_bh_state(bh));  in __jbd2_journal_refile_buffer()
2334 	was_dirty = test_clear_buffer_jbddirty(bh);  in __jbd2_journal_refile_buffer()
2343 	if (buffer_freed(bh))  in __jbd2_journal_refile_buffer()
2353 		set_buffer_jbddirty(bh);  in __jbd2_journal_refile_buffer()
2364 	struct buffer_head *bh = jh2bh(jh);  in jbd2_journal_refile_buffer()  local
2367 	get_bh(bh);  in jbd2_journal_refile_buffer()
2368 	jbd_lock_bh_state(bh);  in jbd2_journal_refile_buffer()
2371 	jbd_unlock_bh_state(bh);  in jbd2_journal_refile_buffer()
2373 	__brelse(bh);  in jbd2_journal_refile_buffer()