Lines Matching full:page
26 uint pagealloc; /* # of page allocations */
27 uint pagefree; /* # of page frees */
49 unlock_page(mp->page); in __lock_metapage()
51 lock_page(mp->page); in __lock_metapage()
59 * Must have mp->page locked
80 #define mp_anchor(page) ((struct meta_anchor *)page_private(page)) argument
82 static inline struct metapage *page_to_mp(struct page *page, int offset) in page_to_mp() argument
84 if (!PagePrivate(page)) in page_to_mp()
86 return mp_anchor(page)->mp[offset >> L2PSIZE]; in page_to_mp()
89 static inline int insert_metapage(struct page *page, struct metapage *mp) in insert_metapage() argument
95 if (PagePrivate(page)) in insert_metapage()
96 a = mp_anchor(page); in insert_metapage()
101 set_page_private(page, (unsigned long)a); in insert_metapage()
102 SetPagePrivate(page); in insert_metapage()
103 kmap(page); in insert_metapage()
107 l2mp_blocks = L2PSIZE - page->mapping->host->i_blkbits; in insert_metapage()
116 static inline void remove_metapage(struct page *page, struct metapage *mp) in remove_metapage() argument
118 struct meta_anchor *a = mp_anchor(page); in remove_metapage()
119 int l2mp_blocks = L2PSIZE - page->mapping->host->i_blkbits; in remove_metapage()
129 set_page_private(page, 0); in remove_metapage()
130 ClearPagePrivate(page); in remove_metapage()
131 kunmap(page); in remove_metapage()
135 static inline void inc_io(struct page *page) in inc_io() argument
137 atomic_inc(&mp_anchor(page)->io_count); in inc_io()
140 static inline void dec_io(struct page *page, void (*handler) (struct page *)) in dec_io() argument
142 if (atomic_dec_and_test(&mp_anchor(page)->io_count)) in dec_io()
143 handler(page); in dec_io()
147 static inline struct metapage *page_to_mp(struct page *page, int offset) in page_to_mp() argument
149 return PagePrivate(page) ? (struct metapage *)page_private(page) : NULL; in page_to_mp()
152 static inline int insert_metapage(struct page *page, struct metapage *mp) in insert_metapage() argument
155 set_page_private(page, (unsigned long)mp); in insert_metapage()
156 SetPagePrivate(page); in insert_metapage()
157 kmap(page); in insert_metapage()
162 static inline void remove_metapage(struct page *page, struct metapage *mp) in remove_metapage() argument
164 set_page_private(page, 0); in remove_metapage()
165 ClearPagePrivate(page); in remove_metapage()
166 kunmap(page); in remove_metapage()
169 #define inc_io(page) do {} while(0) argument
170 #define dec_io(page, handler) handler(page) argument
221 static inline void drop_metapage(struct page *page, struct metapage *mp) in drop_metapage() argument
226 remove_metapage(page, mp); in drop_metapage()
260 static void last_read_complete(struct page *page) in last_read_complete() argument
262 if (!PageError(page)) in last_read_complete()
263 SetPageUptodate(page); in last_read_complete()
264 unlock_page(page); in last_read_complete()
269 struct page *page = bio->bi_private; in metapage_read_end_io() local
273 SetPageError(page); in metapage_read_end_io()
276 dec_io(page, last_read_complete); in metapage_read_end_io()
302 static void last_write_complete(struct page *page) in last_write_complete() argument
308 mp = page_to_mp(page, offset); in last_write_complete()
316 * safe unless I have the page locked in last_write_complete()
319 end_page_writeback(page); in last_write_complete()
324 struct page *page = bio->bi_private; in metapage_write_end_io() local
326 BUG_ON(!PagePrivate(page)); in metapage_write_end_io()
330 SetPageError(page); in metapage_write_end_io()
332 dec_io(page, last_write_complete); in metapage_write_end_io()
336 static int metapage_writepage(struct page *page, struct writeback_control *wbc) in metapage_writepage() argument
339 int block_offset; /* block offset of mp within page */ in metapage_writepage()
340 struct inode *inode = page->mapping->host; in metapage_writepage()
356 page_start = (sector_t)page->index << in metapage_writepage()
358 BUG_ON(!PageLocked(page)); in metapage_writepage()
359 BUG_ON(PageWriteback(page)); in metapage_writepage()
360 set_page_writeback(page); in metapage_writepage()
363 mp = page_to_mp(page, offset); in metapage_writepage()
371 * Make sure this page isn't blocked indefinitely. in metapage_writepage()
392 if (bio_add_page(bio, page, bio_bytes, bio_offset) < in metapage_writepage()
399 inc_io(page); in metapage_writepage()
406 inc_io(page); in metapage_writepage()
413 * with dec_io() until we're done with the page in metapage_writepage()
423 bio->bi_private = page; in metapage_writepage()
433 if (bio_add_page(bio, page, bio_bytes, bio_offset) < bio_bytes) in metapage_writepage()
442 redirty_page_for_writepage(wbc, page); in metapage_writepage()
444 unlock_page(page); in metapage_writepage()
450 end_page_writeback(page); in metapage_writepage()
462 unlock_page(page); in metapage_writepage()
463 dec_io(page, last_write_complete); in metapage_writepage()
466 dec_io(page, last_write_complete); in metapage_writepage()
472 struct page *page = &folio->page; in metapage_read_folio() local
473 struct inode *inode = page->mapping->host; in metapage_read_folio()
476 int blocks_per_page = i_blocks_per_page(inode, page); in metapage_read_folio()
477 sector_t page_start; /* address of page in fs blocks */ in metapage_read_folio()
483 BUG_ON(!PageLocked(page)); in metapage_read_folio()
484 page_start = (sector_t)page->index << in metapage_read_folio()
493 if (!PagePrivate(page)) in metapage_read_folio()
494 insert_metapage(page, NULL); in metapage_read_folio()
495 inc_io(page); in metapage_read_folio()
504 bio->bi_private = page; in metapage_read_folio()
507 if (bio_add_page(bio, page, len, offset) < len) in metapage_read_folio()
516 unlock_page(page); in metapage_read_folio()
523 dec_io(page, last_read_complete); in metapage_read_folio()
534 mp = page_to_mp(&folio->page, offset); in metapage_release_folio()
549 remove_metapage(&folio->page, mp); in metapage_release_folio()
582 struct page *page; in __get_metapage() local
594 jfs_err("MetaData crosses page boundary!!"); in __get_metapage()
613 page = grab_cache_page(mapping, page_index); in __get_metapage()
614 if (!page) { in __get_metapage()
618 SetPageUptodate(page); in __get_metapage()
620 page = read_mapping_page(mapping, page_index, NULL); in __get_metapage()
621 if (IS_ERR(page)) { in __get_metapage()
625 lock_page(page); in __get_metapage()
628 mp = page_to_mp(page, page_offset); in __get_metapage()
654 mp->page = page; in __get_metapage()
661 mp->data = page_address(page) + page_offset; in __get_metapage()
663 if (unlikely(insert_metapage(page, mp))) { in __get_metapage()
675 unlock_page(page); in __get_metapage()
680 unlock_page(page); in __get_metapage()
687 get_page(mp->page); in grab_metapage()
688 lock_page(mp->page); in grab_metapage()
691 unlock_page(mp->page); in grab_metapage()
694 static int metapage_write_one(struct page *page) in metapage_write_one() argument
696 struct folio *folio = page_folio(page); in metapage_write_one()
710 ret = metapage_writepage(page, &wbc); in metapage_write_one()
725 struct page *page = mp->page; in force_metapage() local
729 get_page(page); in force_metapage()
730 lock_page(page); in force_metapage()
731 set_page_dirty(page); in force_metapage()
732 if (metapage_write_one(page)) in force_metapage()
735 put_page(page); in force_metapage()
740 lock_page(mp->page); in hold_metapage()
747 unlock_page(mp->page); in put_metapage()
750 get_page(mp->page); in put_metapage()
753 unlock_page(mp->page); in put_metapage()
759 struct page *page = mp->page; in release_metapage() local
762 BUG_ON(!page); in release_metapage()
764 lock_page(page); in release_metapage()
769 unlock_page(page); in release_metapage()
770 put_page(page); in release_metapage()
775 set_page_dirty(page); in release_metapage()
778 if (metapage_write_one(page)) in release_metapage()
780 lock_page(page); in release_metapage()
786 drop_metapage(page, mp); in release_metapage()
788 unlock_page(page); in release_metapage()
789 put_page(page); in release_metapage()
801 struct page *page; in __invalidate_metapages() local
810 page = find_lock_page(mapping, lblock >> l2BlocksPerPage); in __invalidate_metapages()
811 if (!page) in __invalidate_metapages()
814 mp = page_to_mp(page, offset); in __invalidate_metapages()
827 unlock_page(page); in __invalidate_metapages()
828 put_page(page); in __invalidate_metapages()
838 "page allocations = %d\n" in jfs_mpstat_proc_show()
839 "page frees = %d\n" in jfs_mpstat_proc_show()