Commit cb3bc9ee authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: use extent cache for dir 



We update extent cache for all user inode of f2fs including dir inode, so this
patch gives another chance to try to get physical address of page from extent
cache for dir inode.

Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 91c5d9bc

fs/f2fs/data.c

+14 −0
Original line number Diff line number Diff line
@@ -806,6 +806,7 @@ struct page *find_data_page(struct inode *inode, pgoff_t index, bool sync) 
	struct address_space *mapping = inode->i_mapping;

	struct dnode_of_data dn;

	struct page *page;

	struct extent_info ei;

	int err;

	struct f2fs_io_info fio = {

		.type = DATA,
@@ -817,6 +818,11 @@ struct page *find_data_page(struct inode *inode, pgoff_t index, bool sync) 
		return page;

	f2fs_put_page(page, 0);



	if (f2fs_lookup_extent_cache(inode, index, &ei)) {

		dn.data_blkaddr = ei.blk + index - ei.fofs;

		goto got_it;

	}



	set_new_dnode(&dn, inode, NULL, NULL, 0);

	err = get_dnode_of_data(&dn, index, LOOKUP_NODE);

	if (err)
@@ -830,6 +836,7 @@ struct page *find_data_page(struct inode *inode, pgoff_t index, bool sync) 
	if (unlikely(dn.data_blkaddr == NEW_ADDR))

		return ERR_PTR(-EINVAL);



got_it:

	page = grab_cache_page(mapping, index);

	if (!page)

		return ERR_PTR(-ENOMEM);
@@ -864,6 +871,7 @@ struct page *get_lock_data_page(struct inode *inode, pgoff_t index) 
	struct address_space *mapping = inode->i_mapping;

	struct dnode_of_data dn;

	struct page *page;

	struct extent_info ei;

	int err;

	struct f2fs_io_info fio = {

		.type = DATA,
@@ -874,6 +882,11 @@ repeat: 
	if (!page)

		return ERR_PTR(-ENOMEM);



	if (f2fs_lookup_extent_cache(inode, index, &ei)) {

		dn.data_blkaddr = ei.blk + index - ei.fofs;

		goto got_it;

	}



	set_new_dnode(&dn, inode, NULL, NULL, 0);

	err = get_dnode_of_data(&dn, index, LOOKUP_NODE);

	if (err) {
@@ -887,6 +900,7 @@ repeat: 
		return ERR_PTR(-ENOENT);

	}



got_it:

	if (PageUptodate(page))

		return page;

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