Lines Matching refs:mpd
1549 static void mpage_release_unused_pages(struct mpage_da_data *mpd, in mpage_release_unused_pages() argument
1555 struct inode *inode = mpd->inode; in mpage_release_unused_pages()
1559 if (mpd->first_page >= mpd->next_page) in mpage_release_unused_pages()
1562 mpd->scanned_until_end = 0; in mpage_release_unused_pages()
1563 index = mpd->first_page; in mpage_release_unused_pages()
1564 end = mpd->next_page - 1; in mpage_release_unused_pages()
2074 static int mpage_submit_page(struct mpage_da_data *mpd, struct page *page) in mpage_submit_page() argument
2080 BUG_ON(page->index != mpd->first_page); in mpage_submit_page()
2095 size = i_size_read(mpd->inode); in mpage_submit_page()
2097 !ext4_verity_in_progress(mpd->inode)) in mpage_submit_page()
2101 err = ext4_bio_write_page(&mpd->io_submit, page, len, false); in mpage_submit_page()
2103 mpd->wbc->nr_to_write--; in mpage_submit_page()
2104 mpd->first_page++; in mpage_submit_page()
2132 static bool mpage_add_bh_to_extent(struct mpage_da_data *mpd, ext4_lblk_t lblk, in mpage_add_bh_to_extent() argument
2135 struct ext4_map_blocks *map = &mpd->map; in mpage_add_bh_to_extent()
2149 if (!mpd->do_map) in mpage_add_bh_to_extent()
2186 static int mpage_process_page_bufs(struct mpage_da_data *mpd, in mpage_process_page_bufs() argument
2191 struct inode *inode = mpd->inode; in mpage_process_page_bufs()
2202 if (lblk >= blocks || !mpage_add_bh_to_extent(mpd, lblk, bh)) { in mpage_process_page_bufs()
2204 if (mpd->map.m_len) in mpage_process_page_bufs()
2207 if (!mpd->do_map) in mpage_process_page_bufs()
2214 if (mpd->map.m_len == 0) { in mpage_process_page_bufs()
2215 err = mpage_submit_page(mpd, head->b_page); in mpage_process_page_bufs()
2220 mpd->scanned_until_end = 1; in mpage_process_page_bufs()
2241 static int mpage_process_page(struct mpage_da_data *mpd, struct page *page, in mpage_process_page() argument
2246 ext4_io_end_t *io_end = mpd->io_submit.io_end; in mpage_process_page()
2250 int blkbits = mpd->inode->i_blkbits; in mpage_process_page()
2256 if (lblk < mpd->map.m_lblk) in mpage_process_page()
2258 if (lblk >= mpd->map.m_lblk + mpd->map.m_len) { in mpage_process_page()
2263 mpd->map.m_len = 0; in mpage_process_page()
2264 mpd->map.m_flags = 0; in mpage_process_page()
2268 err = mpage_process_page_bufs(mpd, head, bh, lblk); in mpage_process_page()
2271 if (!err && mpd->map.m_len && mpd->map.m_lblk > lblk) { in mpage_process_page()
2277 io_end_vec->offset = (loff_t)mpd->map.m_lblk << blkbits; in mpage_process_page()
2313 static int mpage_map_and_submit_buffers(struct mpage_da_data *mpd) in mpage_map_and_submit_buffers() argument
2317 struct inode *inode = mpd->inode; in mpage_map_and_submit_buffers()
2325 start = mpd->map.m_lblk >> bpp_bits; in mpage_map_and_submit_buffers()
2326 end = (mpd->map.m_lblk + mpd->map.m_len - 1) >> bpp_bits; in mpage_map_and_submit_buffers()
2328 pblock = mpd->map.m_pblk; in mpage_map_and_submit_buffers()
2339 err = mpage_process_page(mpd, page, &lblk, &pblock, in mpage_map_and_submit_buffers()
2349 err = mpage_submit_page(mpd, page); in mpage_map_and_submit_buffers()
2356 mpd->map.m_len = 0; in mpage_map_and_submit_buffers()
2357 mpd->map.m_flags = 0; in mpage_map_and_submit_buffers()
2364 static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd) in mpage_map_one_extent() argument
2366 struct inode *inode = mpd->inode; in mpage_map_one_extent()
2367 struct ext4_map_blocks *map = &mpd->map; in mpage_map_one_extent()
2400 if (!mpd->io_submit.io_end->handle && in mpage_map_one_extent()
2402 mpd->io_submit.io_end->handle = handle->h_rsv_handle; in mpage_map_one_extent()
2405 ext4_set_io_unwritten_flag(inode, mpd->io_submit.io_end); in mpage_map_one_extent()
2433 struct mpage_da_data *mpd, in mpage_map_and_submit_extent() argument
2436 struct inode *inode = mpd->inode; in mpage_map_and_submit_extent()
2437 struct ext4_map_blocks *map = &mpd->map; in mpage_map_and_submit_extent()
2441 ext4_io_end_t *io_end = mpd->io_submit.io_end; in mpage_map_and_submit_extent()
2449 err = mpage_map_one_extent(handle, mpd); in mpage_map_and_submit_extent()
2488 err = mpage_map_and_submit_buffers(mpd); in mpage_map_and_submit_extent()
2498 disksize = ((loff_t)mpd->first_page) << PAGE_SHIFT; in mpage_map_and_submit_extent()
2555 static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd) in mpage_prepare_extent_to_map() argument
2557 struct address_space *mapping = mpd->inode->i_mapping; in mpage_prepare_extent_to_map()
2560 long left = mpd->wbc->nr_to_write; in mpage_prepare_extent_to_map()
2561 pgoff_t index = mpd->first_page; in mpage_prepare_extent_to_map()
2562 pgoff_t end = mpd->last_page; in mpage_prepare_extent_to_map()
2565 int blkbits = mpd->inode->i_blkbits; in mpage_prepare_extent_to_map()
2569 if (mpd->wbc->sync_mode == WB_SYNC_ALL || mpd->wbc->tagged_writepages) in mpage_prepare_extent_to_map()
2575 mpd->map.m_len = 0; in mpage_prepare_extent_to_map()
2576 mpd->next_page = index; in mpage_prepare_extent_to_map()
2594 if (mpd->wbc->sync_mode == WB_SYNC_NONE && left <= 0) in mpage_prepare_extent_to_map()
2598 if (mpd->map.m_len > 0 && mpd->next_page != page->index) in mpage_prepare_extent_to_map()
2611 (mpd->wbc->sync_mode == WB_SYNC_NONE)) || in mpage_prepare_extent_to_map()
2630 ext4_warning_inode(mpd->inode, "page %lu does not have buffers attached", page->index); in mpage_prepare_extent_to_map()
2636 if (mpd->map.m_len == 0) in mpage_prepare_extent_to_map()
2637 mpd->first_page = page->index; in mpage_prepare_extent_to_map()
2638 mpd->next_page = page->index + 1; in mpage_prepare_extent_to_map()
2643 err = mpage_process_page_bufs(mpd, head, head, lblk); in mpage_prepare_extent_to_map()
2652 mpd->scanned_until_end = 1; in mpage_prepare_extent_to_map()
2667 struct mpage_da_data mpd; in ext4_writepages() local
2743 mpd.first_page = writeback_index; in ext4_writepages()
2744 mpd.last_page = -1; in ext4_writepages()
2746 mpd.first_page = wbc->range_start >> PAGE_SHIFT; in ext4_writepages()
2747 mpd.last_page = wbc->range_end >> PAGE_SHIFT; in ext4_writepages()
2750 mpd.inode = inode; in ext4_writepages()
2751 mpd.wbc = wbc; in ext4_writepages()
2752 ext4_io_submit_init(&mpd.io_submit, wbc); in ext4_writepages()
2755 tag_pages_for_writeback(mapping, mpd.first_page, mpd.last_page); in ext4_writepages()
2764 mpd.do_map = 0; in ext4_writepages()
2765 mpd.scanned_until_end = 0; in ext4_writepages()
2766 mpd.io_submit.io_end = ext4_init_io_end(inode, GFP_KERNEL); in ext4_writepages()
2767 if (!mpd.io_submit.io_end) { in ext4_writepages()
2771 ret = mpage_prepare_extent_to_map(&mpd); in ext4_writepages()
2773 mpage_release_unused_pages(&mpd, false); in ext4_writepages()
2775 ext4_io_submit(&mpd.io_submit); in ext4_writepages()
2776 ext4_put_io_end_defer(mpd.io_submit.io_end); in ext4_writepages()
2777 mpd.io_submit.io_end = NULL; in ext4_writepages()
2781 while (!mpd.scanned_until_end && wbc->nr_to_write > 0) { in ext4_writepages()
2783 mpd.io_submit.io_end = ext4_init_io_end(inode, GFP_KERNEL); in ext4_writepages()
2784 if (!mpd.io_submit.io_end) { in ext4_writepages()
2808 ext4_put_io_end(mpd.io_submit.io_end); in ext4_writepages()
2809 mpd.io_submit.io_end = NULL; in ext4_writepages()
2812 mpd.do_map = 1; in ext4_writepages()
2814 trace_ext4_da_write_pages(inode, mpd.first_page, mpd.wbc); in ext4_writepages()
2815 ret = mpage_prepare_extent_to_map(&mpd); in ext4_writepages()
2816 if (!ret && mpd.map.m_len) in ext4_writepages()
2817 ret = mpage_map_and_submit_extent(handle, &mpd, in ext4_writepages()
2832 mpd.do_map = 0; in ext4_writepages()
2835 mpage_release_unused_pages(&mpd, give_up_on_write); in ext4_writepages()
2837 ext4_io_submit(&mpd.io_submit); in ext4_writepages()
2847 ext4_put_io_end_defer(mpd.io_submit.io_end); in ext4_writepages()
2850 ext4_put_io_end(mpd.io_submit.io_end); in ext4_writepages()
2851 mpd.io_submit.io_end = NULL; in ext4_writepages()
2871 mpd.last_page = writeback_index - 1; in ext4_writepages()
2872 mpd.first_page = 0; in ext4_writepages()
2882 mapping->writeback_index = mpd.first_page; in ext4_writepages()