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Commit 28cdce04 authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
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f2fs: recover inline xattr data in roll-forward process 



Previously we do not recover inline xattr data of inode after power-cut, so
inline xattr data may be lost.
We should recover the data during the roll-forward process.

Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk.kim@samsung.com>
parent d653788a

fs/f2fs/node.c

+33 −0
Original line number Diff line number Diff line
@@ -1493,6 +1493,37 @@ void recover_node_page(struct f2fs_sb_info *sbi, struct page *page, 
	clear_node_page_dirty(page);

}



void recover_inline_xattr(struct inode *inode, struct page *page)

{

	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);

	void *src_addr, *dst_addr;

	size_t inline_size;

	struct page *ipage;

	struct f2fs_inode *ri;



	if (!is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR))

		return;



	if (!IS_INODE(page))

		return;



	ri = F2FS_INODE(page);

	if (!(ri->i_inline & F2FS_INLINE_XATTR))

		return;



	ipage = get_node_page(sbi, inode->i_ino);

	f2fs_bug_on(IS_ERR(ipage));



	dst_addr = inline_xattr_addr(ipage);

	src_addr = inline_xattr_addr(page);

	inline_size = inline_xattr_size(inode);



	memcpy(dst_addr, src_addr, inline_size);



	update_inode(inode, ipage);

	f2fs_put_page(ipage, 1);

}



bool recover_xattr_data(struct inode *inode, struct page *page, block_t blkaddr)

{

	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
@@ -1500,6 +1531,8 @@ bool recover_xattr_data(struct inode *inode, struct page *page, block_t blkaddr) 
	nid_t new_xnid = nid_of_node(page);

	struct node_info ni;



	recover_inline_xattr(inode, page);



	if (ofs_of_node(page) != XATTR_NODE_OFFSET)

		return false;