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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: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Chao Yu 2014-03-11 13:37:38 +08:00 committed by Jaegeuk Kim
parent d653788a43
commit 28cdce0459
1 changed files with 33 additions and 0 deletions
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33
fs/f2fs/node.c
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@ -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;