733 static void wbc_attach_and_unlock_inode(struct writeback_control *wbc,  in wbc_attach_and_unlock_inode()  argument
742 	wbc->wb = inode_to_wb(inode);  in wbc_attach_and_unlock_inode()
743 	wbc->inode = inode;  in wbc_attach_and_unlock_inode()
745 	wbc->wb_id = wbc->wb->memcg_css->id;  in wbc_attach_and_unlock_inode()
746 	wbc->wb_lcand_id = inode->i_wb_frn_winner;  in wbc_attach_and_unlock_inode()
747 	wbc->wb_tcand_id = 0;  in wbc_attach_and_unlock_inode()
748 	wbc->wb_bytes = 0;  in wbc_attach_and_unlock_inode()
749 	wbc->wb_lcand_bytes = 0;  in wbc_attach_and_unlock_inode()
750 	wbc->wb_tcand_bytes = 0;  in wbc_attach_and_unlock_inode()
752 	wb_get(wbc->wb);  in wbc_attach_and_unlock_inode()
762 	if (unlikely(wb_dying(wbc->wb) && !css_is_dying(wbc->wb->memcg_css)))  in wbc_attach_and_unlock_inode()
763 		inode_switch_wbs(inode, wbc->wb_id);  in wbc_attach_and_unlock_inode()
775 void wbc_attach_fdatawrite_inode(struct writeback_control *wbc,  in wbc_attach_fdatawrite_inode()  argument
780 	wbc_attach_and_unlock_inode(wbc, inode);  in wbc_attach_fdatawrite_inode()
821 void wbc_detach_inode(struct writeback_control *wbc)  in wbc_detach_inode()  argument
823 	struct bdi_writeback *wb = wbc->wb;  in wbc_detach_inode()
824 	struct inode *inode = wbc->inode;  in wbc_detach_inode()
836 	if (wbc->wb_bytes >= wbc->wb_lcand_bytes &&  in wbc_detach_inode()
837 	    wbc->wb_bytes >= wbc->wb_tcand_bytes) {  in wbc_detach_inode()
838 		max_id = wbc->wb_id;  in wbc_detach_inode()
839 		max_bytes = wbc->wb_bytes;  in wbc_detach_inode()
840 	} else if (wbc->wb_lcand_bytes >= wbc->wb_tcand_bytes) {  in wbc_detach_inode()
841 		max_id = wbc->wb_lcand_id;  in wbc_detach_inode()
842 		max_bytes = wbc->wb_lcand_bytes;  in wbc_detach_inode()
844 		max_id = wbc->wb_tcand_id;  in wbc_detach_inode()
845 		max_bytes = wbc->wb_tcand_bytes;  in wbc_detach_inode()
877 		if (wbc->wb_id != max_id)  in wbc_detach_inode()
881 			trace_inode_foreign_history(inode, wbc, history);  in wbc_detach_inode()
902 	wb_put(wbc->wb);  in wbc_detach_inode()
903 	wbc->wb = NULL;  in wbc_detach_inode()
917 void wbc_account_cgroup_owner(struct writeback_control *wbc, struct folio *folio,  in wbc_account_cgroup_owner()  argument
929 	if (!wbc->wb || wbc->no_cgroup_owner)  in wbc_account_cgroup_owner()
939 	if (id == wbc->wb_id) {  in wbc_account_cgroup_owner()
940 		wbc->wb_bytes += bytes;  in wbc_account_cgroup_owner()
944 	if (id == wbc->wb_lcand_id)  in wbc_account_cgroup_owner()
945 		wbc->wb_lcand_bytes += bytes;  in wbc_account_cgroup_owner()
948 	if (!wbc->wb_tcand_bytes)  in wbc_account_cgroup_owner()
949 		wbc->wb_tcand_id = id;  in wbc_account_cgroup_owner()
950 	if (id == wbc->wb_tcand_id)  in wbc_account_cgroup_owner()
951 		wbc->wb_tcand_bytes += bytes;  in wbc_account_cgroup_owner()
953 		wbc->wb_tcand_bytes -= min(bytes, wbc->wb_tcand_bytes);  in wbc_account_cgroup_owner()
1245 static inline void wbc_attach_and_unlock_inode(struct writeback_control *wbc,  in wbc_attach_and_unlock_inode()  argument
1519 static int write_inode(struct inode *inode, struct writeback_control *wbc)  in write_inode()  argument
1524 		trace_writeback_write_inode_start(inode, wbc);  in write_inode()
1525 		ret = inode->i_sb->s_op->write_inode(inode, wbc);  in write_inode()
1526 		trace_writeback_write_inode(inode, wbc);  in write_inode()
1592 			  struct writeback_control *wbc,  in requeue_inode()  argument
1604 	    (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages))  in requeue_inode()
1607 	if (wbc->pages_skipped) {  in requeue_inode()
1626 		if (wbc->nr_to_write <= 0 &&  in requeue_inode()
1669 __writeback_single_inode(struct inode *inode, struct writeback_control *wbc)  in __writeback_single_inode()  argument
1672 	long nr_to_write = wbc->nr_to_write;  in __writeback_single_inode()
1678 	trace_writeback_single_inode_start(inode, wbc, nr_to_write);  in __writeback_single_inode()
1680 	ret = do_writepages(mapping, wbc);  in __writeback_single_inode()
1689 	if (wbc->sync_mode == WB_SYNC_ALL && !wbc->for_sync) {  in __writeback_single_inode()
1701 	    (wbc->sync_mode == WB_SYNC_ALL ||  in __writeback_single_inode()
1736 			wbc->unpinned_netfs_wb = true;  in __writeback_single_inode()
1745 		int err = write_inode(inode, wbc);  in __writeback_single_inode()
1749 	wbc->unpinned_netfs_wb = false;  in __writeback_single_inode()
1750 	trace_writeback_single_inode(inode, wbc, nr_to_write);  in __writeback_single_inode()
1764 				  struct writeback_control *wbc)  in writeback_single_inode()  argument
1782 		if (wbc->sync_mode != WB_SYNC_ALL)  in writeback_single_inode()
1795 	    (wbc->sync_mode != WB_SYNC_ALL ||  in writeback_single_inode()
1799 	wbc_attach_and_unlock_inode(wbc, inode);  in writeback_single_inode()
1801 	ret = __writeback_single_inode(inode, wbc);  in writeback_single_inode()
1803 	wbc_detach_inode(wbc);  in writeback_single_inode()
1882 	struct writeback_control wbc = {  in writeback_sb_inodes()  local
1936 		if ((inode->i_state & I_SYNC) && wbc.sync_mode != WB_SYNC_ALL) {  in writeback_sb_inodes()
1966 		wbc_attach_and_unlock_inode(&wbc, inode);  in writeback_sb_inodes()
1969 		wbc.nr_to_write = write_chunk;  in writeback_sb_inodes()
1970 		wbc.pages_skipped = 0;  in writeback_sb_inodes()
1976 		__writeback_single_inode(inode, &wbc);  in writeback_sb_inodes()
1978 		wbc_detach_inode(&wbc);  in writeback_sb_inodes()
1979 		work->nr_pages -= write_chunk - wbc.nr_to_write;  in writeback_sb_inodes()
1980 		wrote = write_chunk - wbc.nr_to_write - wbc.pages_skipped;  in writeback_sb_inodes()
2005 		requeue_inode(inode, tmp_wb, &wbc, dirtied_before);  in writeback_sb_inodes()
2840 	struct writeback_control wbc = {  in write_inode_now()  local
2848 		wbc.nr_to_write = 0;  in write_inode_now()
2851 	return writeback_single_inode(inode, &wbc);  in write_inode_now()
2866 	struct writeback_control wbc = {  in sync_inode_metadata()  local
2871 	return writeback_single_inode(inode, &wbc);  in sync_inode_metadata()