f2fs: expand counting dirty pages in the inode page cache

Previously f2fs only counts dirty dentry pages, but there is no reason not to
expand the scope.

This patch changes the names on the management of dirty pages and to count
dirty pages in each inode info as well.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 10 insertions, 6 deletions

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 64d8550..0e37658 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -843,7 +843,7 @@ write:
 	if (unlikely(f2fs_cp_error(sbi))) {
 		SetPageError(page);
 		unlock_page(page);
-		return 0;
+		goto out;
 	}
 
 	if (!wbc->for_reclaim)
@@ -863,7 +863,7 @@ done:
 
 	clear_cold_data(page);
 out:
-	inode_dec_dirty_dents(inode);
+	inode_dec_dirty_pages(inode);
 	unlock_page(page);
 	if (need_balance_fs)
 		f2fs_balance_fs(sbi);
@@ -901,7 +901,7 @@ static int f2fs_write_data_pages(struct address_space *mapping,
 		return 0;
 
 	if (S_ISDIR(inode->i_mode) && wbc->sync_mode == WB_SYNC_NONE &&
-			get_dirty_dents(inode) < nr_pages_to_skip(sbi, DATA) &&
+			get_dirty_pages(inode) < nr_pages_to_skip(sbi, DATA) &&
 			available_free_memory(sbi, DIRTY_DENTS))
 		goto skip_write;
 
@@ -923,7 +923,7 @@ static int f2fs_write_data_pages(struct address_space *mapping,
 	return ret;
 
 skip_write:
-	wbc->pages_skipped += get_dirty_dents(inode);
+	wbc->pages_skipped += get_dirty_pages(inode);
 	return 0;
 }
 
@@ -1107,8 +1107,12 @@ static void f2fs_invalidate_data_page(struct page *page, unsigned int offset,
 				      unsigned int length)
 {
 	struct inode *inode = page->mapping->host;
+
+	if (offset % PAGE_CACHE_SIZE || length != PAGE_CACHE_SIZE)
+		return;
+
 	if (PageDirty(page))
-		inode_dec_dirty_dents(inode);
+		inode_dec_dirty_pages(inode);
 	ClearPagePrivate(page);
 }
 
@@ -1130,7 +1134,7 @@ static int f2fs_set_data_page_dirty(struct page *page)
 
 	if (!PageDirty(page)) {
 		__set_page_dirty_nobuffers(page);
-		set_dirty_dir_page(inode, page);
+		update_dirty_page(inode, page);
 		return 1;
 	}
 	return 0;