58 #define mark_metapage_dirty(mp) set_bit(META_dirty, &(mp)->flag)  argument
85 static inline void write_metapage(struct metapage *mp)  in write_metapage()  argument
87 	set_bit(META_dirty, &mp->flag);  in write_metapage()
88 	release_metapage(mp);  in write_metapage()
91 static inline void flush_metapage(struct metapage *mp)  in flush_metapage()  argument
93 	set_bit(META_sync, &mp->flag);  in flush_metapage()
94 	write_metapage(mp);  in flush_metapage()
97 static inline void discard_metapage(struct metapage *mp)  in discard_metapage()  argument
99 	clear_bit(META_dirty, &mp->flag);  in discard_metapage()
100 	set_bit(META_discard, &mp->flag);  in discard_metapage()
101 	release_metapage(mp);  in discard_metapage()
104 static inline void metapage_nohomeok(struct metapage *mp)  in metapage_nohomeok()  argument
106 	struct page *page = mp->page;  in metapage_nohomeok()
108 	if (!mp->nohomeok++) {  in metapage_nohomeok()
109 		mark_metapage_dirty(mp);  in metapage_nohomeok()
120 static inline void metapage_wait_for_io(struct metapage *mp)  in metapage_wait_for_io()  argument
122 	if (test_bit(META_io, &mp->flag))  in metapage_wait_for_io()
123 		wait_on_page_writeback(mp->page);  in metapage_wait_for_io()
129 static inline void _metapage_homeok(struct metapage *mp)  in _metapage_homeok()  argument
131 	if (!--mp->nohomeok)  in _metapage_homeok()
132 		put_page(mp->page);  in _metapage_homeok()
135 static inline void metapage_homeok(struct metapage *mp)  in metapage_homeok()  argument
137 	hold_metapage(mp);  in metapage_homeok()
138 	_metapage_homeok(mp);  in metapage_homeok()
139 	put_metapage(mp);  in metapage_homeok()