77 			p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_NOFS);  in nfs_writedata_alloc()
109 static struct nfs_page *nfs_page_find_request_locked(struct page *page)  in nfs_page_find_request_locked()  argument
113 	if (PagePrivate(page)) {  in nfs_page_find_request_locked()
114 		req = (struct nfs_page *)page_private(page);  in nfs_page_find_request_locked()
121 static struct nfs_page *nfs_page_find_request(struct page *page)  in nfs_page_find_request()  argument
123 	struct inode *inode = page->mapping->host;  in nfs_page_find_request()
127 	req = nfs_page_find_request_locked(page);  in nfs_page_find_request()
133 static void nfs_grow_file(struct page *page, unsigned int offset, unsigned int count)  in nfs_grow_file()  argument
135 	struct inode *inode = page->mapping->host;  in nfs_grow_file()
142 	if (i_size > 0 && page->index < end_index)  in nfs_grow_file()
144 	end = ((loff_t)page->index << PAGE_CACHE_SHIFT) + ((loff_t)offset+count);  in nfs_grow_file()
154 static void nfs_set_pageerror(struct page *page)  in nfs_set_pageerror()  argument
156 	SetPageError(page);  in nfs_set_pageerror()
157 	nfs_zap_mapping(page->mapping->host, page->mapping);  in nfs_set_pageerror()
163 static void nfs_mark_uptodate(struct page *page, unsigned int base, unsigned int count)  in nfs_mark_uptodate()  argument
165 	if (PageUptodate(page))  in nfs_mark_uptodate()
169 	if (count != nfs_page_length(page))  in nfs_mark_uptodate()
171 	SetPageUptodate(page);  in nfs_mark_uptodate()
193 static int nfs_set_page_writeback(struct page *page)  in nfs_set_page_writeback()  argument
195 	int ret = test_set_page_writeback(page);  in nfs_set_page_writeback()
198 		struct inode *inode = page->mapping->host;  in nfs_set_page_writeback()
208 static void nfs_end_page_writeback(struct page *page)  in nfs_end_page_writeback()  argument
210 	struct inode *inode = page->mapping->host;  in nfs_end_page_writeback()
213 	end_page_writeback(page);  in nfs_end_page_writeback()
223 				struct page *page)  in nfs_page_async_flush()  argument
225 	struct inode *inode = page->mapping->host;  in nfs_page_async_flush()
231 		req = nfs_page_find_request_locked(page);  in nfs_page_async_flush()
254 	if (nfs_set_page_writeback(page) != 0) {  in nfs_page_async_flush()
266 static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, struct nfs_pageio_des…  in nfs_do_writepage()  argument
268 	struct inode *inode = page->mapping->host;  in nfs_do_writepage()
273 	nfs_pageio_cond_complete(pgio, page->index);  in nfs_do_writepage()
274 	return nfs_page_async_flush(pgio, page);  in nfs_do_writepage()
280 static int nfs_writepage_locked(struct page *page, struct writeback_control *wbc)  in nfs_writepage_locked()  argument
285 	nfs_pageio_init_write(&pgio, page->mapping->host, wb_priority(wbc));  in nfs_writepage_locked()
286 	err = nfs_do_writepage(page, wbc, &pgio);  in nfs_writepage_locked()
295 int nfs_writepage(struct page *page, struct writeback_control *wbc)  in nfs_writepage()  argument
299 	ret = nfs_writepage_locked(page, wbc);  in nfs_writepage()
300 	unlock_page(page);  in nfs_writepage()
304 static int nfs_writepages_callback(struct page *page, struct writeback_control *wbc, void *data)  in nfs_writepages_callback()  argument
308 	ret = nfs_do_writepage(page, wbc, data);  in nfs_writepages_callback()
309 	unlock_page(page);  in nfs_writepages_callback()
421 	struct page *page = req->wb_page;  in nfs_clear_request_commit()  local
424 		dec_zone_page_state(page, NR_UNSTABLE_NFS);  in nfs_clear_request_commit()
425 		dec_bdi_stat(page->mapping->backing_dev_info, BDI_RECLAIMABLE);  in nfs_clear_request_commit()
565 		struct page *page,  in nfs_try_to_update_request()  argument
574 	if (!PagePrivate(page))  in nfs_try_to_update_request()
581 		req = nfs_page_find_request_locked(page);  in nfs_try_to_update_request()
627 	error = nfs_wb_page(inode, page);  in nfs_try_to_update_request()
640 		struct page *page, unsigned int offset, unsigned int bytes)  in nfs_setup_write_request()  argument
642 	struct inode *inode = page->mapping->host;  in nfs_setup_write_request()
646 	req = nfs_try_to_update_request(inode, page, offset, bytes);  in nfs_setup_write_request()
649 	req = nfs_create_request(ctx, inode, page, offset, bytes);  in nfs_setup_write_request()
661 static int nfs_writepage_setup(struct nfs_open_context *ctx, struct page *page,  in nfs_writepage_setup()  argument
666 	req = nfs_setup_write_request(ctx, page, offset, count);  in nfs_writepage_setup()
670 	nfs_grow_file(page, offset, count);  in nfs_writepage_setup()
671 	nfs_mark_uptodate(page, req->wb_pgbase, req->wb_bytes);  in nfs_writepage_setup()
676 int nfs_flush_incompatible(struct file *file, struct page *page)  in nfs_flush_incompatible()  argument
690 		req = nfs_page_find_request(page);  in nfs_flush_incompatible()
693 		do_flush = req->wb_page != page || req->wb_context != ctx;  in nfs_flush_incompatible()
697 		status = nfs_wb_page(page->mapping->host, page);  in nfs_flush_incompatible()
707 static int nfs_write_pageuptodate(struct page *page, struct inode *inode)  in nfs_write_pageuptodate()  argument
709 	return PageUptodate(page) &&  in nfs_write_pageuptodate()
719 int nfs_updatepage(struct file *file, struct page *page,  in nfs_updatepage()  argument
723 	struct inode	*inode = page->mapping->host;  in nfs_updatepage()
731 		(long long)(page_offset(page) + offset));  in nfs_updatepage()
738 	if (nfs_write_pageuptodate(page, inode) &&  in nfs_updatepage()
741 		count = max(count + offset, nfs_page_length(page));  in nfs_updatepage()
745 	status = nfs_writepage_setup(ctx, page, offset, count);  in nfs_updatepage()
747 		nfs_set_pageerror(page);  in nfs_updatepage()
749 		__set_page_dirty_nobuffers(page);  in nfs_updatepage()
868 	struct page *page = req->wb_page;  in nfs_flush_multi()  local
891 	ClearPageError(page);  in nfs_flush_multi()
900 		data->pagevec[0] = page;  in nfs_flush_multi()
935 	struct page		**pages;  in nfs_flush_one()
995 	struct page		*page = req->wb_page;  in nfs_writeback_release_partial()  local
999 		nfs_set_pageerror(page);  in nfs_writeback_release_partial()
1006 		struct inode *inode = page->mapping->host;  in nfs_writeback_release_partial()
1056 		struct page *page = req->wb_page;  in nfs_writeback_release_full()  local
1068 			nfs_set_pageerror(page);  in nfs_writeback_release_full()
1077 			nfs_end_page_writeback(page);  in nfs_writeback_release_full()
1083 		nfs_end_page_writeback(page);  in nfs_writeback_release_full()
1456 int nfs_wb_page_cancel(struct inode *inode, struct page *page)  in nfs_wb_page_cancel()  argument
1459 	loff_t range_start = page_offset(page);  in nfs_wb_page_cancel()
1462 		.bdi = page->mapping->backing_dev_info,  in nfs_wb_page_cancel()
1470 	BUG_ON(!PageLocked(page));  in nfs_wb_page_cancel()
1472 		req = nfs_page_find_request(page);  in nfs_wb_page_cancel()
1485 			cancel_dirty_page(page, PAGE_CACHE_SIZE);  in nfs_wb_page_cancel()
1493 	if (!PagePrivate(page))  in nfs_wb_page_cancel()
1495 	ret = nfs_sync_mapping_wait(page->mapping, &wbc, FLUSH_INVALIDATE);  in nfs_wb_page_cancel()
1500 static int nfs_wb_page_priority(struct inode *inode, struct page *page,  in nfs_wb_page_priority()  argument
1503 	loff_t range_start = page_offset(page);  in nfs_wb_page_priority()
1506 		.bdi = page->mapping->backing_dev_info,  in nfs_wb_page_priority()
1515 		if (clear_page_dirty_for_io(page)) {  in nfs_wb_page_priority()
1516 			ret = nfs_writepage_locked(page, &wbc);  in nfs_wb_page_priority()
1519 		} else if (!PagePrivate(page))  in nfs_wb_page_priority()
1521 		ret = nfs_sync_mapping_wait(page->mapping, &wbc, how);  in nfs_wb_page_priority()
1524 	} while (PagePrivate(page));  in nfs_wb_page_priority()
1534 int nfs_wb_page(struct inode *inode, struct page* page)  in nfs_wb_page()  argument
1536 	return nfs_wb_page_priority(inode, page, FLUSH_STABLE);  in nfs_wb_page()